Borrow the library to index it, and give it back

The passes that need every photograph's bytes — thumbnails, face indexing — now borrow each one and release it at the end. On a placeholder library that is the difference between peak disk being the working set and being the whole library. Including on cancellation, which was nearly missed: the face sweep returns mid-loop when the user presses Stop, and without releasing there the disk is spent and nothing is delivered for it. `materialise` now answers whether *it* fetched the content. The pool used to work that out by listing a file's parent directory — one listing per file across a library — when the backend already had to `stat` it to decide whether to ask. One syscall instead of a directory walk, and it removes the bug class the tests found earlier: a file at the library root has no `parent()`, so every one of them read as already-downloaded. **Pinning is the retention control**, and it drives the model the catalog already had rather than a second one. `tier_desired` is what the user asked to keep hydrated, `pending_pins` is the resumable work list, and a pinned collection is never dehydrated for the same reason it was never evicted. It was in fact *broken* here before: `get` on a stub failed, and the pin worker logged "one unreadable file must not abandon the whole pin" and silently did nothing. Pinned originals on such a library are recorded with `path = NULL` (`Cache::record_in_place`) rather than copied under `originals/`. Two reasons, and the second is the important one. A copy would hold every pinned photograph twice, with the budget able to evict the half that was not costing the disk. And `release` deletes the file a row names — so a row that names none cannot delete anything, which puts the one catastrophic operation out of reach by construction rather than by remembering not to call it. Deleting a materialised file inside a synced tree removes the photograph from the server and every other device. Handing disk back is `spawn_dehydrate`, which asks the client. Two gaps written down rather than papered over (docs/storage.md §7): a hydrating pass cannot yet quote its cost, because a stub reports no size; and the two sweeps hold separate pools, so a library indexed for both fetches twice.
2026-08-29 09:57:53 +02:00
parent c102ba9df2
commit 5768100816
9 changed files with 406 additions and 114 deletions
@@ -222,6 +222,56 @@ impl Cache {
        Ok(())
    }

+    /// TRACES: FR-NC-6c | FR-NC-6a
+    /// Record an original this cache does **not** own the bytes of.
+    ///
+    /// The virtual-filesystem case. On a library kept by a sync client the
+    /// original is materialised *in the library folder itself*, so copying it
+    /// under `originals/` would hold two copies of every pinned photograph —
+    /// and the copy would be the one the budget could evict while the real
+    /// disk cost stayed.
+    ///
+    /// So the bytes are left where they are and only the bookkeeping is kept.
+    /// `path` is deliberately `NULL`, which is what makes this safe:
+    /// [`release`](Self::release) deletes the file a row names, and a row that
+    /// names none deletes nothing. **That matters more than it sounds.**
+    /// Deleting a materialised file inside a synced folder does not free a
+    /// cache — it deletes the photograph, and the client propagates that to
+    /// the server and to every other device. Handing the disk back is the
+    /// backend's job (`RemoteBackend::dematerialise`), not this one's.
+    ///
+    /// `bytes` is what the original occupies where it lies, for the budget and
+    /// for reporting; pass 0 where it is not known.
+    pub fn record_in_place(
+        &self,
+        conn: &Connection,
+        image: ImageId,
+        bytes: u64,
+        pinned: bool,
+        now: i64,
+    ) -> Result<(), CatalogError> {
+        conn.execute(
+            "INSERT INTO image_cache
+                 (image_id, tier_actual, tier_desired, bytes, last_used, pinned, path)
+             VALUES (?1, ?2, ?2, ?3, ?4, ?5, NULL)
+             ON CONFLICT(image_id) DO UPDATE SET
+                 tier_actual = ?2,
+                 tier_desired = max(tier_desired, ?2),
+                 bytes       = ?3,
+                 last_used   = ?4,
+                 pinned      = max(pinned, ?5),
+                 path        = NULL",
+            rusqlite::params![
+                image.0 as i64,
+                Tier::Original.stored(),
+                bytes as i64,
+                now,
+                i64::from(pinned),
+            ],
+        )?;
+        Ok(())
+    }
+
    /// Read a cached original back, if it is here.
    ///
    /// Touches `last_used`, which is what makes the eviction order reflect
@@ -85,27 +85,6 @@ impl BorrowPool {
        &'p self,
        backend: &dyn RemoteBackend,
        path: &RemotePath,
-    ) -> Result<Borrowed<'p>, RemoteError> {
-        self.borrow_known(backend, path, None).await
-    }
-
-    /// [`borrow`](Self::borrow) where the caller already knows whether the
-    /// content is here.
-    ///
-    /// A sweep reads availability out of the catalog on its way to building a
-    /// work list, so making the pool re-derive it costs a directory listing
-    /// per file for an answer already in hand.
-    ///
-    /// **`None` means "find out", and being wrong is not symmetric.** Claiming
-    /// a file was already local leaves it downloaded — disk, and nothing else.
-    /// Claiming it was not releases a file the user may have pinned. So an
-    /// uncertain caller passes `Some(true)` or `None`, never a guess at
-    /// `false`.
-    pub async fn borrow_known<'p>(
-        &'p self,
-        backend: &dyn RemoteBackend,
-        path: &RemotePath,
-        already_local: Option<bool>,
    ) -> Result<Borrowed<'p>, RemoteError> {
        if !backend.capabilities().materialisation.can_materialise() {
            return Ok(Borrowed {
@@ -129,32 +108,19 @@ impl BorrowPool {
            }
        }

-        let id = RemoteId::Path(path.clone());
+        // The backend answers whether *it* fetched the content, because it had
+        // to look before deciding. Determining that here instead would cost a
+        // directory listing per file, and getting it wrong in the wrong
+        // direction releases a file the user pinned.
+        let ours = backend.materialise(&RemoteId::Path(path.clone())).await?;

-        // What was here *before* we asked. The whole contract rests on this
-        // being read first: after `materialise` there is no way to tell what
-        // we brought from what was already there.
-        let was_local = match already_local {
-            Some(known) => known,
-            None => is_materialised(backend, path).await,
-        };
-
-        if !was_local {
-            backend.materialise(&id).await?;
-        }
-
-        self.lock().insert(
-            path.clone(),
-            Held {
-                borrowers: 1,
-                ours: !was_local,
-            },
-        );
+        self.lock()
+            .insert(path.clone(), Held { borrowers: 1, ours });

        Ok(Borrowed {
            pool: Some(self),
            path: path.clone(),
-            hydrated: !was_local,
+            hydrated: ours,
        })
    }

@@ -237,28 +203,5 @@ impl Drop for Borrowed<'_> {
    }
 }

-/// Whether the backend currently holds this file's content.
-///
-/// Asked by listing its parent, because the trait has no "stat one object" —
-/// and adding one for this would put a method on every backend to serve a case
-/// only one of them has.
-async fn is_materialised(backend: &dyn RemoteBackend, path: &RemotePath) -> bool {
-    // `parent()` is `None` for a file directly under the library root, whose
-    // parent *is* the root — not "no parent". Treating the two alike reported
-    // every top-level photograph as already downloaded, so nothing was ever
-    // hydrated and nothing was ever released.
-    let parent = path.parent().unwrap_or_else(RemotePath::root);
-    match backend.list(&parent, None).await {
-        Ok(entries) => entries
-            .iter()
-            .find(|e| &e.path == path)
-            .map(|e| e.materialised)
-            // Not listed at all: nothing to hydrate, and the caller's own read
-            // will report the miss properly.
-            .unwrap_or(true),
-        Err(_) => true,
-    }
-}
-
 #[cfg(test)]
 mod tests;
@@ -221,22 +221,46 @@ async fn borrowing_against_a_plain_folder_does_nothing_at_all() {
 }

 #[tokio::test]
-async fn an_uncertain_caller_keeps_the_file_rather_than_releasing_it() {
-    // The asymmetry stated on `borrow_known`: claiming "already local" costs
-    // disk, claiming "not local" can release a pin.
-    let t = Tmp::new("uncertain");
-    t.real("a.CR2");
+async fn the_backend_is_what_decides_whether_a_file_was_ours() {
+    // Not the pool, and not the caller. The backend had to look before
+    // deciding whether to ask, so it can answer for the cost of that same
+    // `stat`; a borrower working it out separately would pay a directory
+    // listing per file and could get it wrong in the direction that releases
+    // a file the user pinned.
+    let t = Tmp::new("who-decides");
+    t.real("had.CR2").stub("wanted.CR2");
+    let b = t.backend(FakeClient::new());
+
+    assert!(
+        !b.materialise(&RemoteId::Path(RemotePath::new("had.CR2")))
+            .await
+            .unwrap(),
+        "already here, so not ours to release"
+    );
+    assert!(
+        b.materialise(&RemoteId::Path(RemotePath::new("wanted.CR2")))
+            .await
+            .unwrap(),
+        "this call fetched it"
+    );
+}
+
+#[tokio::test]
+async fn a_file_borrowed_twice_in_one_pass_is_fetched_once_and_released_once() {
+    // Thumbnailing and face indexing visit the same photograph. Fetching it
+    // per stage doubles the transfer over the whole library.
+    let t = Tmp::new("sequential");
+    t.stub("a.CR2");
    let client = FakeClient::new();
    let b = t.backend(client.clone());
    let pool = BorrowPool::new();
+    let path = RemotePath::new("a.CR2");

-    {
-        let _held = pool
-            .borrow_known(&b, &RemotePath::new("a.CR2"), Some(true))
-            .await
-            .unwrap();
-    }
-    pool.release_all(&b).await;
-    assert!(t.has("a.CR2"), "kept");
-    assert_eq!(client.dehydrations.load(Ordering::SeqCst), 0);
+    // Sequential borrows, as two passes over one work list would make.
+    drop(pool.borrow(&b, &path).await.unwrap());
+    drop(pool.borrow(&b, &path).await.unwrap());
+
+    assert_eq!(client.hydrations.load(Ordering::SeqCst), 1, "paid once");
+    let stats = pool.release_all(&b).await;
+    assert_eq!(stats.released, 1, "given back once");
 }
@@ -773,12 +773,12 @@ impl RemoteBackend for FolderBackend {
    /// Suffix-mode VFS *renames* on hydration, so completion is the
    /// materialised path appearing — not the stub changing size. Polling the
    /// original would wait forever.
-    async fn materialise(&self, id: &RemoteId) -> Result<(), RemoteError> {
+    async fn materialise(&self, id: &RemoteId) -> Result<bool, RemoteError> {
        let (local, materialised) = self.locate_id(id)?;
        if materialised {
-            // Already here. Not an error, and not a reason to ask again: the
-            // borrow pool relies on this being idempotent.
-            return Ok(());
+            // Already here. Not an error, and not a reason to ask again — and
+            // `false` is what tells a borrower to leave it alone afterwards.
+            return Ok(false);
        }
        let vfs = self.vfs.clone();
        let target = self.resolve_id(id)?;
@@ -793,7 +793,7 @@ impl RemoteBackend for FolderBackend {
            let deadline = std::time::Instant::now() + MATERIALISE_TIMEOUT;
            while std::time::Instant::now() < deadline {
                if target.is_file() {
-                    return Ok(());
+                    return Ok(true);
                }
                std::thread::sleep(POLL);
            }
@@ -170,9 +170,16 @@ pub trait RemoteBackend: Send + Sync {
    /// agreed to. **Never for filling a grid**: doing so downloads the entire
    /// library to produce thumbnails.
    ///
-    /// Returns once the content is readable. Callers that borrowed it should
-    /// hand it back with [`dematerialise`](Self::dematerialise).
-    async fn materialise(&self, _id: &RemoteId) -> Result<(), RemoteError> {
+    /// Returns once the content is readable, and **whether this call is what
+    /// brought it here** — `false` meaning it was already local.
+    ///
+    /// That boolean is the whole basis of borrowing. A caller releasing what
+    /// it fetched must not release what the user already had, and after the
+    /// fact the two are indistinguishable; the backend knows because it had to
+    /// look before deciding whether to ask. Answering it here costs the `stat`
+    /// the implementation performs anyway, where a caller determining it
+    /// separately would pay a directory listing per file.
+    async fn materialise(&self, _id: &RemoteId) -> Result<bool, RemoteError> {
        Err(RemoteError::Unsupported(
            "this backend has no placeholders to materialise",
        ))
@@ -477,6 +477,40 @@ This is also why the originals cache (`dr_catalog::cache`) cannot simply be
 pointed at a VFS library: `Cache::release` deletes bytes, which is right for a
 copy under `originals/` and catastrophic in place.

+### 6.5 Which photographs stay downloaded
+
+The user's half of the bargain: a pass borrows for a moment, but *some* of the
+library should stay local — the trip you are about to take, the shoot you are
+working on.
+
+That is a **pin**, and it is the pin the originals cache already had
+(`dr_catalog::cache`, FR-NC-6a). Nothing parallel was built, because the model
+was already the right one:
+
+| Cache concept | On a placeholder library |
+|---|---|
+| `tier_desired` | what the user asked to keep hydrated |
+| `tier_actual` | what is actually materialised |
+| `pending_pins()` | the work list — what to hydrate next, resumable |
+| pinned rows are never evicted | a pinned collection is never dehydrated |
+| passive rows, LRU under a budget | what a pass borrowed, released when it finishes |
+
+So "keep this collection hydrated" is `Cache::pin`, and the existing pin worker
+drives it — except that on a placeholder library it calls `materialise` instead
+of downloading a copy.
+
+**Why not a copy.** The original materialises *in the library folder*. Copying
+it under `originals/` as well would hold every pinned photograph twice, and the
+copy would be the half the budget could evict while the real disk cost stayed.
+`Cache::record_in_place` records the bookkeeping with **`path = NULL`**, and
+that null is load-bearing: `release` deletes the file a row names, and a row
+that names none deletes nothing. The safety property is structural rather than
+remembered.
+
+Unpinning therefore frees nothing by itself — the bytes are not ours to delete.
+`spawn_dehydrate` asks the client to take them back, which is what actually
+returns the disk.
+
 ---

 ## 7. What the abstraction does not yet cover
@@ -495,3 +529,16 @@ Stated so the next person does not have to rediscover it.
 - **A general notion of an account.** Credentials stay connector-specific on
  purpose (§3.5). A third connector with an OAuth flow will need a third `SignIn`
  variant, and that is the right place for it to appear.
+- **A quoted cost before a hydrating pass.** FR-NC-6c wants the transfer size
+  stated before an operation that needs absent data. A placeholder reports no
+  size (§6.2), so the honest figure for "index this library" is a count and not
+  a byte total. The interface should say *n photographs, size unknown until
+  fetched* rather than estimate one silently — and it does not say anything yet.
+- **Metadata-only placeholders.** Windows and macOS express these in filesystem
+  metadata rather than in the name, and carry the real size there. `Vfs` asks
+  its questions about a *name*, which is all the one convention this project has
+  met needs. Supporting them means widening the trait to take a `Metadata`, and
+  doing that before anyone has run this on those platforms would be guessing.
+- **Hydration during browsing, deliberately.** It stays forbidden (ARCH §9.0
+  finding 3). A grid cell whose content is absent shows as not-downloaded; only
+  a pass the user asked for may fetch.
@@ -10,7 +10,7 @@ Denominators are parsed from [`requirements.md`](requirements.md) at run time, n
 | Metric | Value |
 |---|---|
 | Source files scanned | 286 |
-| TRACES tags found | 834 |
+| TRACES tags found | 840 |
 | Requirements defined | 179 |
 | Requirements covered | 107 |
 | **Coverage** | **59.8%** (107/179) |
@@ -35,26 +35,26 @@ _None._
 |---|---|
 | FR-CAT-1 | [`core/dr-catalog/src/scan.rs:1`](../core/dr-catalog/src/scan.rs#L1), [`core/dr-catalog/src/walk.rs:109`](../core/dr-catalog/src/walk.rs#L109), [`core/dr-catalog/src/walk.rs:162`](../core/dr-catalog/src/walk.rs#L162), [`core/dr-catalog/src/walk.rs:1`](../core/dr-catalog/src/walk.rs#L1), [`core/dr-sync/src/scan.rs:93`](../core/dr-sync/src/scan.rs#L93), [`core/dr-types/src/lib.rs:200`](../core/dr-types/src/lib.rs#L200), [`core/dr-types/src/lib.rs:269`](../core/dr-types/src/lib.rs#L269), [`core/dr-types/src/lib.rs:302`](../core/dr-types/src/lib.rs#L302), [`platform/dr-plat/src/storage.rs:1`](../platform/dr-plat/src/storage.rs#L1), [`platform/dr-plat/src/storage.rs:216`](../platform/dr-plat/src/storage.rs#L216), [`tools/traceability/src/lib.rs:479`](../tools/traceability/src/lib.rs#L479), [`tools/traceability/src/lib.rs:511`](../tools/traceability/src/lib.rs#L511), [`ui/dr-ui/src/activity.rs:1`](../ui/dr-ui/src/activity.rs#L1), [`ui/dr-ui/src/library.rs:1`](../ui/dr-ui/src/library.rs#L1) |
 | FR-CAT-10 | [`core/dr-ingest/src/layout.rs:1`](../core/dr-ingest/src/layout.rs#L1), [`core/dr-ingest/src/lib.rs:1`](../core/dr-ingest/src/lib.rs#L1), [`core/dr-ingest/src/lib.rs:733`](../core/dr-ingest/src/lib.rs#L733), [`core/dr-types/src/settings.rs:116`](../core/dr-types/src/settings.rs#L116), [`platform/dr-plat/src/storage.rs:287`](../platform/dr-plat/src/storage.rs#L287), [`platform/dr-plat/src/storage.rs:586`](../platform/dr-plat/src/storage.rs#L586), [`platform/dr-plat/src/volumes.rs:1`](../platform/dr-plat/src/volumes.rs#L1), [`platform/dr-plat/src/volumes.rs:62`](../platform/dr-plat/src/volumes.rs#L62), [`ui/dr-ui/src/import.rs:1`](../ui/dr-ui/src/import.rs#L1), [`ui/dr-ui/src/import.rs:336`](../ui/dr-ui/src/import.rs#L336), [`ui/dr-ui/src/import_ui.rs:1`](../ui/dr-ui/src/import_ui.rs#L1), [`ui/dr-ui/src/lib.rs:1123`](../ui/dr-ui/src/lib.rs#L1123), [`ui/dr-ui/ui/import.slint:5`](../ui/dr-ui/ui/import.slint#L5), [`ui/dr-ui/ui/library.slint:1014`](../ui/dr-ui/ui/library.slint#L1014), [`ui/dr-ui/ui/library.slint:1176`](../ui/dr-ui/ui/library.slint#L1176), [`ui/dr-ui/ui/library.slint:863`](../ui/dr-ui/ui/library.slint#L863) |
-| FR-CAT-11 | [`core/dr-catalog/src/dedup.rs:1`](../core/dr-catalog/src/dedup.rs#L1), [`core/dr-ingest/src/lib.rs:1`](../core/dr-ingest/src/lib.rs#L1), [`core/dr-ingest/src/lib.rs:392`](../core/dr-ingest/src/lib.rs#L392), [`core/dr-sync/src/upload.rs:40`](../core/dr-sync/src/upload.rs#L40), [`ui/dr-ui/src/import.rs:1`](../ui/dr-ui/src/import.rs#L1), [`ui/dr-ui/src/import_ui.rs:1`](../ui/dr-ui/src/import_ui.rs#L1), [`ui/dr-ui/src/lib.rs:1123`](../ui/dr-ui/src/lib.rs#L1123), [`ui/dr-ui/src/library.rs:162`](../ui/dr-ui/src/library.rs#L162), [`ui/dr-ui/src/library.rs:2257`](../ui/dr-ui/src/library.rs#L2257), [`ui/dr-ui/ui/import.slint:5`](../ui/dr-ui/ui/import.slint#L5) |
+| FR-CAT-11 | [`core/dr-catalog/src/dedup.rs:1`](../core/dr-catalog/src/dedup.rs#L1), [`core/dr-ingest/src/lib.rs:1`](../core/dr-ingest/src/lib.rs#L1), [`core/dr-ingest/src/lib.rs:392`](../core/dr-ingest/src/lib.rs#L392), [`core/dr-sync/src/upload.rs:40`](../core/dr-sync/src/upload.rs#L40), [`ui/dr-ui/src/import.rs:1`](../ui/dr-ui/src/import.rs#L1), [`ui/dr-ui/src/import_ui.rs:1`](../ui/dr-ui/src/import_ui.rs#L1), [`ui/dr-ui/src/lib.rs:1123`](../ui/dr-ui/src/lib.rs#L1123), [`ui/dr-ui/src/library.rs:162`](../ui/dr-ui/src/library.rs#L162), [`ui/dr-ui/src/library.rs:2375`](../ui/dr-ui/src/library.rs#L2375), [`ui/dr-ui/ui/import.slint:5`](../ui/dr-ui/ui/import.slint#L5) |
 | FR-CAT-12 | [`core/dr-pipeline/src/sidecar.rs:118`](../core/dr-pipeline/src/sidecar.rs#L118) |
 | FR-CAT-13 | [`core/dr-catalog/src/keywords.rs:1`](../core/dr-catalog/src/keywords.rs#L1) |
-| FR-CAT-15 | [`core/dr-catalog/src/schema.rs:641`](../core/dr-catalog/src/schema.rs#L641), [`core/dr-catalog/src/trash.rs:1`](../core/dr-catalog/src/trash.rs#L1), [`core/dr-sync-nextcloud/src/lib.rs:456`](../core/dr-sync-nextcloud/src/lib.rs#L456), [`core/dr-sync/src/lib.rs:135`](../core/dr-sync/src/lib.rs#L135), [`core/dr-sync/src/scan.rs:429`](../core/dr-sync/src/scan.rs#L429), [`core/dr-sync/src/scan.rs:57`](../core/dr-sync/src/scan.rs#L57), [`core/dr-thumbs/src/lib.rs:376`](../core/dr-thumbs/src/lib.rs#L376), [`ui/dr-ui/src/collections_ui.rs:1219`](../ui/dr-ui/src/collections_ui.rs#L1219), [`ui/dr-ui/src/collections_ui.rs:1975`](../ui/dr-ui/src/collections_ui.rs#L1975), [`ui/dr-ui/src/library.rs:162`](../ui/dr-ui/src/library.rs#L162), [`ui/dr-ui/src/library.rs:179`](../ui/dr-ui/src/library.rs#L179), [`ui/dr-ui/src/library.rs:208`](../ui/dr-ui/src/library.rs#L208), [`ui/dr-ui/src/library.rs:3665`](../ui/dr-ui/src/library.rs#L3665), [`ui/dr-ui/src/library.rs:3699`](../ui/dr-ui/src/library.rs#L3699), [`ui/dr-ui/src/library_ui.rs:190`](../ui/dr-ui/src/library_ui.rs#L190), [`ui/dr-ui/src/library_ui.rs:756`](../ui/dr-ui/src/library_ui.rs#L756), [`ui/dr-ui/src/trash.rs:1`](../ui/dr-ui/src/trash.rs#L1), [`ui/dr-ui/ui/collections.slint:572`](../ui/dr-ui/ui/collections.slint#L572) |
+| FR-CAT-15 | [`core/dr-catalog/src/schema.rs:641`](../core/dr-catalog/src/schema.rs#L641), [`core/dr-catalog/src/trash.rs:1`](../core/dr-catalog/src/trash.rs#L1), [`core/dr-sync-nextcloud/src/lib.rs:456`](../core/dr-sync-nextcloud/src/lib.rs#L456), [`core/dr-sync/src/lib.rs:135`](../core/dr-sync/src/lib.rs#L135), [`core/dr-sync/src/scan.rs:429`](../core/dr-sync/src/scan.rs#L429), [`core/dr-sync/src/scan.rs:57`](../core/dr-sync/src/scan.rs#L57), [`core/dr-thumbs/src/lib.rs:376`](../core/dr-thumbs/src/lib.rs#L376), [`ui/dr-ui/src/collections_ui.rs:1219`](../ui/dr-ui/src/collections_ui.rs#L1219), [`ui/dr-ui/src/collections_ui.rs:1975`](../ui/dr-ui/src/collections_ui.rs#L1975), [`ui/dr-ui/src/library.rs:162`](../ui/dr-ui/src/library.rs#L162), [`ui/dr-ui/src/library.rs:179`](../ui/dr-ui/src/library.rs#L179), [`ui/dr-ui/src/library.rs:208`](../ui/dr-ui/src/library.rs#L208), [`ui/dr-ui/src/library.rs:3869`](../ui/dr-ui/src/library.rs#L3869), [`ui/dr-ui/src/library.rs:3903`](../ui/dr-ui/src/library.rs#L3903), [`ui/dr-ui/src/library_ui.rs:190`](../ui/dr-ui/src/library_ui.rs#L190), [`ui/dr-ui/src/library_ui.rs:756`](../ui/dr-ui/src/library_ui.rs#L756), [`ui/dr-ui/src/trash.rs:1`](../ui/dr-ui/src/trash.rs#L1), [`ui/dr-ui/ui/collections.slint:572`](../ui/dr-ui/ui/collections.slint#L572) |
 | FR-CAT-1a | [`core/dr-catalog/src/walk.rs:1`](../core/dr-catalog/src/walk.rs#L1), [`core/dr-types/src/lib.rs:53`](../core/dr-types/src/lib.rs#L53), [`platform/dr-plat/src/storage.rs:1`](../platform/dr-plat/src/storage.rs#L1), [`platform/dr-plat/src/storage.rs:216`](../platform/dr-plat/src/storage.rs#L216), [`platform/dr-plat/src/storage.rs:46`](../platform/dr-plat/src/storage.rs#L46) |
 | FR-CAT-2 | [`core/dr-catalog/src/lib.rs:1`](../core/dr-catalog/src/lib.rs#L1), [`core/dr-catalog/src/schema.rs:1`](../core/dr-catalog/src/schema.rs#L1), [`tools/traceability/src/lib.rs:479`](../tools/traceability/src/lib.rs#L479) |
-| FR-CAT-3 | [`core/dr-catalog/src/jobs.rs:1`](../core/dr-catalog/src/jobs.rs#L1), [`core/dr-catalog/src/walk.rs:66`](../core/dr-catalog/src/walk.rs#L66), [`core/dr-sync/src/scan.rs:69`](../core/dr-sync/src/scan.rs#L69), [`core/dr-thumbs/src/codec.rs:1`](../core/dr-thumbs/src/codec.rs#L1), [`core/dr-thumbs/src/lib.rs:1`](../core/dr-thumbs/src/lib.rs#L1), [`ui/dr-ui/src/derived_sync.rs:1`](../ui/dr-ui/src/derived_sync.rs#L1), [`ui/dr-ui/src/import.rs:463`](../ui/dr-ui/src/import.rs#L463), [`ui/dr-ui/src/import.rs:488`](../ui/dr-ui/src/import.rs#L488), [`ui/dr-ui/src/library.rs:2730`](../ui/dr-ui/src/library.rs#L2730), [`ui/dr-ui/src/library.rs:3200`](../ui/dr-ui/src/library.rs#L3200), [`ui/dr-ui/src/library_ui.rs:172`](../ui/dr-ui/src/library_ui.rs#L172), [`ui/dr-ui/src/library_ui.rs:3610`](../ui/dr-ui/src/library_ui.rs#L3610), [`ui/dr-ui/src/library_ui.rs:4575`](../ui/dr-ui/src/library_ui.rs#L4575), [`ui/dr-ui/ui/app.slint:319`](../ui/dr-ui/ui/app.slint#L319), [`ui/dr-ui/ui/settings.slint:372`](../ui/dr-ui/ui/settings.slint#L372), [`ui/dr-ui/ui/settings.slint:72`](../ui/dr-ui/ui/settings.slint#L72) |
+| FR-CAT-3 | [`core/dr-catalog/src/jobs.rs:1`](../core/dr-catalog/src/jobs.rs#L1), [`core/dr-catalog/src/walk.rs:66`](../core/dr-catalog/src/walk.rs#L66), [`core/dr-sync/src/scan.rs:69`](../core/dr-sync/src/scan.rs#L69), [`core/dr-thumbs/src/codec.rs:1`](../core/dr-thumbs/src/codec.rs#L1), [`core/dr-thumbs/src/lib.rs:1`](../core/dr-thumbs/src/lib.rs#L1), [`ui/dr-ui/src/derived_sync.rs:1`](../ui/dr-ui/src/derived_sync.rs#L1), [`ui/dr-ui/src/import.rs:463`](../ui/dr-ui/src/import.rs#L463), [`ui/dr-ui/src/import.rs:488`](../ui/dr-ui/src/import.rs#L488), [`ui/dr-ui/src/library.rs:2848`](../ui/dr-ui/src/library.rs#L2848), [`ui/dr-ui/src/library.rs:3356`](../ui/dr-ui/src/library.rs#L3356), [`ui/dr-ui/src/library_ui.rs:172`](../ui/dr-ui/src/library_ui.rs#L172), [`ui/dr-ui/src/library_ui.rs:3627`](../ui/dr-ui/src/library_ui.rs#L3627), [`ui/dr-ui/src/library_ui.rs:4592`](../ui/dr-ui/src/library_ui.rs#L4592), [`ui/dr-ui/ui/app.slint:319`](../ui/dr-ui/ui/app.slint#L319), [`ui/dr-ui/ui/settings.slint:372`](../ui/dr-ui/ui/settings.slint#L372), [`ui/dr-ui/ui/settings.slint:72`](../ui/dr-ui/ui/settings.slint#L72) |
 | FR-CAT-4 | [`core/dr-catalog/src/lib.rs:1`](../core/dr-catalog/src/lib.rs#L1), [`core/dr-catalog/src/query.rs:1`](../core/dr-catalog/src/query.rs#L1), [`core/dr-catalog/src/schema.rs:318`](../core/dr-catalog/src/schema.rs#L318), [`ui/dr-ui/src/library.rs:189`](../ui/dr-ui/src/library.rs#L189), [`ui/dr-ui/src/library.rs:1`](../ui/dr-ui/src/library.rs#L1), [`ui/dr-ui/src/library_ui.rs:1`](../ui/dr-ui/src/library_ui.rs#L1) |
-| FR-CAT-5 | [`core/dr-catalog/src/keywords.rs:1`](../core/dr-catalog/src/keywords.rs#L1), [`core/dr-catalog/src/merge.rs:1`](../core/dr-catalog/src/merge.rs#L1), [`core/dr-catalog/src/rating.rs:1`](../core/dr-catalog/src/rating.rs#L1), [`core/dr-catalog/src/schema.rs:1059`](../core/dr-catalog/src/schema.rs#L1059), [`core/dr-catalog/src/schema.rs:556`](../core/dr-catalog/src/schema.rs#L556), [`core/dr-decode/src/lib.rs:285`](../core/dr-decode/src/lib.rs#L285), [`core/dr-decode/src/lib.rs:404`](../core/dr-decode/src/lib.rs#L404), [`core/dr-pipeline/src/sidecar.rs:135`](../core/dr-pipeline/src/sidecar.rs#L135), [`ui/dr-ui/src/collections_ui.rs:1558`](../ui/dr-ui/src/collections_ui.rs#L1558), [`ui/dr-ui/src/collections_ui.rs:1577`](../ui/dr-ui/src/collections_ui.rs#L1577), [`ui/dr-ui/src/collections_ui.rs:243`](../ui/dr-ui/src/collections_ui.rs#L243), [`ui/dr-ui/src/collections_ui.rs:340`](../ui/dr-ui/src/collections_ui.rs#L340), [`ui/dr-ui/src/collections_ui.rs:89`](../ui/dr-ui/src/collections_ui.rs#L89), [`ui/dr-ui/src/library.rs:3713`](../ui/dr-ui/src/library.rs#L3713), [`ui/dr-ui/src/library_ui.rs:631`](../ui/dr-ui/src/library_ui.rs#L631), [`ui/dr-ui/src/library_ui.rs:6372`](../ui/dr-ui/src/library_ui.rs#L6372), [`ui/dr-ui/src/library_ui.rs:6383`](../ui/dr-ui/src/library_ui.rs#L6383), [`ui/dr-ui/src/library_ui.rs:6396`](../ui/dr-ui/src/library_ui.rs#L6396), [`ui/dr-ui/src/library_ui.rs:6411`](../ui/dr-ui/src/library_ui.rs#L6411), [`ui/dr-ui/src/library_ui.rs:6420`](../ui/dr-ui/src/library_ui.rs#L6420), [`ui/dr-ui/ui/app.slint:264`](../ui/dr-ui/ui/app.slint#L264), [`ui/dr-ui/ui/app.slint:445`](../ui/dr-ui/ui/app.slint#L445), [`ui/dr-ui/ui/library.slint:1225`](../ui/dr-ui/ui/library.slint#L1225), [`ui/dr-ui/ui/library.slint:1228`](../ui/dr-ui/ui/library.slint#L1228), [`ui/dr-ui/ui/library.slint:18`](../ui/dr-ui/ui/library.slint#L18), [`ui/dr-ui/ui/library.slint:856`](../ui/dr-ui/ui/library.slint#L856), [`ui/dr-ui/ui/library.slint:908`](../ui/dr-ui/ui/library.slint#L908) |
-| FR-CAT-6 | [`core/dr-catalog/src/collections.rs:1`](../core/dr-catalog/src/collections.rs#L1), [`core/dr-catalog/src/keywords.rs:1`](../core/dr-catalog/src/keywords.rs#L1), [`core/dr-catalog/src/lib.rs:1`](../core/dr-catalog/src/lib.rs#L1), [`core/dr-catalog/src/query.rs:1`](../core/dr-catalog/src/query.rs#L1), [`core/dr-catalog/src/rating.rs:1`](../core/dr-catalog/src/rating.rs#L1), [`core/dr-catalog/src/schema.rs:556`](../core/dr-catalog/src/schema.rs#L556), [`core/dr-types/src/selector.rs:1`](../core/dr-types/src/selector.rs#L1), [`core/dr-types/src/settings.rs:63`](../core/dr-types/src/settings.rs#L63), [`core/dr-types/src/time.rs:67`](../core/dr-types/src/time.rs#L67), [`core/dr-types/src/time.rs:90`](../core/dr-types/src/time.rs#L90), [`ui/dr-ui/src/library.rs:213`](../ui/dr-ui/src/library.rs#L213), [`ui/dr-ui/src/library.rs:3959`](../ui/dr-ui/src/library.rs#L3959), [`ui/dr-ui/src/library_ui.rs:321`](../ui/dr-ui/src/library_ui.rs#L321), [`ui/dr-ui/src/library_ui.rs:393`](../ui/dr-ui/src/library_ui.rs#L393), [`ui/dr-ui/src/library_ui.rs:5186`](../ui/dr-ui/src/library_ui.rs#L5186), [`ui/dr-ui/src/library_ui.rs:5239`](../ui/dr-ui/src/library_ui.rs#L5239), [`ui/dr-ui/src/library_ui.rs:6512`](../ui/dr-ui/src/library_ui.rs#L6512), [`ui/dr-ui/ui/app.slint:267`](../ui/dr-ui/ui/app.slint#L267), [`ui/dr-ui/ui/app.slint:445`](../ui/dr-ui/ui/app.slint#L445), [`ui/dr-ui/ui/app.slint:690`](../ui/dr-ui/ui/app.slint#L690), [`ui/dr-ui/ui/library.slint:109`](../ui/dr-ui/ui/library.slint#L109), [`ui/dr-ui/ui/library.slint:1301`](../ui/dr-ui/ui/library.slint#L1301), [`ui/dr-ui/ui/library.slint:908`](../ui/dr-ui/ui/library.slint#L908), [`ui/dr-ui/ui/settings.slint:147`](../ui/dr-ui/ui/settings.slint#L147) |
-| FR-CAT-7 | [`core/dr-catalog/src/collections.rs:1`](../core/dr-catalog/src/collections.rs#L1), [`core/dr-catalog/src/merge.rs:1`](../core/dr-catalog/src/merge.rs#L1), [`core/dr-catalog/src/sync.rs:1`](../core/dr-catalog/src/sync.rs#L1), [`core/dr-types/src/selector.rs:1`](../core/dr-types/src/selector.rs#L1), [`ui/dr-ui/src/collections_ui.rs:1673`](../ui/dr-ui/src/collections_ui.rs#L1673), [`ui/dr-ui/src/collections_ui.rs:1`](../ui/dr-ui/src/collections_ui.rs#L1), [`ui/dr-ui/src/derived_sync.rs:1`](../ui/dr-ui/src/derived_sync.rs#L1), [`ui/dr-ui/src/library_ui.rs:3472`](../ui/dr-ui/src/library_ui.rs#L3472), [`ui/dr-ui/src/library_ui.rs:4165`](../ui/dr-ui/src/library_ui.rs#L4165), [`ui/dr-ui/ui/app.slint:440`](../ui/dr-ui/ui/app.slint#L440), [`ui/dr-ui/ui/collections.slint:4`](../ui/dr-ui/ui/collections.slint#L4), [`ui/dr-ui/ui/library.slint:2564`](../ui/dr-ui/ui/library.slint#L2564), [`ui/dr-ui/ui/library.slint:879`](../ui/dr-ui/ui/library.slint#L879), [`ui/dr-ui/ui/library.slint:898`](../ui/dr-ui/ui/library.slint#L898) |
-| FR-CAT-8 | [`core/dr-pipeline/src/graph.rs:345`](../core/dr-pipeline/src/graph.rs#L345), [`core/dr-pipeline/src/graph.rs:384`](../core/dr-pipeline/src/graph.rs#L384), [`core/dr-pipeline/src/ops/curve.rs:137`](../core/dr-pipeline/src/ops/curve.rs#L137), [`core/dr-pipeline/src/ops/curve.rs:656`](../core/dr-pipeline/src/ops/curve.rs#L656), [`core/dr-pipeline/src/sidecar.rs:1636`](../core/dr-pipeline/src/sidecar.rs#L1636), [`core/dr-pipeline/src/sidecar.rs:92`](../core/dr-pipeline/src/sidecar.rs#L92), [`core/dr-pipeline/src/state.rs:1`](../core/dr-pipeline/src/state.rs#L1), [`core/dr-pipeline/src/state.rs:75`](../core/dr-pipeline/src/state.rs#L75), [`core/dr-pipeline/tests/tone_curve.rs:34`](../core/dr-pipeline/tests/tone_curve.rs#L34), [`ui/dr-ui/src/develop.rs:3345`](../ui/dr-ui/src/develop.rs#L3345), [`ui/dr-ui/src/develop.rs:3374`](../ui/dr-ui/src/develop.rs#L3374), [`ui/dr-ui/src/export.rs:750`](../ui/dr-ui/src/export.rs#L750), [`ui/dr-ui/src/lib.rs:1376`](../ui/dr-ui/src/lib.rs#L1376), [`ui/dr-ui/src/lib.rs:1777`](../ui/dr-ui/src/lib.rs#L1777), [`ui/dr-ui/src/lib.rs:1912`](../ui/dr-ui/src/lib.rs#L1912), [`ui/dr-ui/src/lib.rs:501`](../ui/dr-ui/src/lib.rs#L501), [`ui/dr-ui/src/lib.rs:926`](../ui/dr-ui/src/lib.rs#L926), [`ui/dr-ui/src/library.rs:1669`](../ui/dr-ui/src/library.rs#L1669), [`ui/dr-ui/src/library.rs:459`](../ui/dr-ui/src/library.rs#L459), [`ui/dr-ui/src/library.rs:506`](../ui/dr-ui/src/library.rs#L506), [`ui/dr-ui/src/library.rs:543`](../ui/dr-ui/src/library.rs#L543), [`ui/dr-ui/src/library.rs:790`](../ui/dr-ui/src/library.rs#L790), [`ui/dr-ui/src/library_ui.rs:4867`](../ui/dr-ui/src/library_ui.rs#L4867), [`ui/dr-ui/src/sidecar_cache.rs:1`](../ui/dr-ui/src/sidecar_cache.rs#L1) |
-| FR-CAT-9 | [`core/dr-catalog/src/cache.rs:1`](../core/dr-catalog/src/cache.rs#L1), [`core/dr-catalog/src/scan.rs:1`](../core/dr-catalog/src/scan.rs#L1), [`core/dr-catalog/src/schema.rs:613`](../core/dr-catalog/src/schema.rs#L613), [`core/dr-catalog/src/walk.rs:162`](../core/dr-catalog/src/walk.rs#L162), [`core/dr-catalog/src/walk.rs:1`](../core/dr-catalog/src/walk.rs#L1), [`core/dr-catalog/src/walk.rs:435`](../core/dr-catalog/src/walk.rs#L435), [`core/dr-catalog/src/walk.rs:704`](../core/dr-catalog/src/walk.rs#L704), [`core/dr-sync-nextcloud/src/desktop_client.rs:30`](../core/dr-sync-nextcloud/src/desktop_client.rs#L30), [`core/dr-sync/src/reachability.rs:1`](../core/dr-sync/src/reachability.rs#L1), [`core/dr-types/src/lib.rs:119`](../core/dr-types/src/lib.rs#L119), [`ui/dr-ui/src/develop.rs:2870`](../ui/dr-ui/src/develop.rs#L2870), [`ui/dr-ui/src/library.rs:148`](../ui/dr-ui/src/library.rs#L148), [`ui/dr-ui/src/library.rs:1629`](../ui/dr-ui/src/library.rs#L1629), [`ui/dr-ui/src/library.rs:1705`](../ui/dr-ui/src/library.rs#L1705), [`ui/dr-ui/src/library.rs:233`](../ui/dr-ui/src/library.rs#L233), [`ui/dr-ui/src/library.rs:4066`](../ui/dr-ui/src/library.rs#L4066), [`ui/dr-ui/src/library.rs:543`](../ui/dr-ui/src/library.rs#L543), [`ui/dr-ui/src/library.rs:774`](../ui/dr-ui/src/library.rs#L774), [`ui/dr-ui/src/library.rs:790`](../ui/dr-ui/src/library.rs#L790), [`ui/dr-ui/src/library.rs:844`](../ui/dr-ui/src/library.rs#L844), [`ui/dr-ui/src/library_ui.rs:1563`](../ui/dr-ui/src/library_ui.rs#L1563), [`ui/dr-ui/src/library_ui.rs:1589`](../ui/dr-ui/src/library_ui.rs#L1589), [`ui/dr-ui/src/library_ui.rs:1605`](../ui/dr-ui/src/library_ui.rs#L1605), [`ui/dr-ui/src/library_ui.rs:1699`](../ui/dr-ui/src/library_ui.rs#L1699), [`ui/dr-ui/src/library_ui.rs:2315`](../ui/dr-ui/src/library_ui.rs#L2315), [`ui/dr-ui/src/library_ui.rs:232`](../ui/dr-ui/src/library_ui.rs#L232), [`ui/dr-ui/src/library_ui.rs:265`](../ui/dr-ui/src/library_ui.rs#L265), [`ui/dr-ui/src/library_ui.rs:2753`](../ui/dr-ui/src/library_ui.rs#L2753), [`ui/dr-ui/src/library_ui.rs:2975`](../ui/dr-ui/src/library_ui.rs#L2975), [`ui/dr-ui/src/library_ui.rs:3253`](../ui/dr-ui/src/library_ui.rs#L3253), [`ui/dr-ui/src/library_ui.rs:3341`](../ui/dr-ui/src/library_ui.rs#L3341), [`ui/dr-ui/src/library_ui.rs:3523`](../ui/dr-ui/src/library_ui.rs#L3523), [`ui/dr-ui/src/library_ui.rs:3637`](../ui/dr-ui/src/library_ui.rs#L3637), [`ui/dr-ui/src/library_ui.rs:446`](../ui/dr-ui/src/library_ui.rs#L446), [`ui/dr-ui/src/library_ui.rs:504`](../ui/dr-ui/src/library_ui.rs#L504), [`ui/dr-ui/src/library_ui.rs:5284`](../ui/dr-ui/src/library_ui.rs#L5284), [`ui/dr-ui/src/library_ui.rs:5399`](../ui/dr-ui/src/library_ui.rs#L5399), [`ui/dr-ui/src/presets.rs:326`](../ui/dr-ui/src/presets.rs#L326), [`ui/dr-ui/src/presets.rs:338`](../ui/dr-ui/src/presets.rs#L338), [`ui/dr-ui/src/sidecar_cache.rs:1`](../ui/dr-ui/src/sidecar_cache.rs#L1) |
+| FR-CAT-5 | [`core/dr-catalog/src/keywords.rs:1`](../core/dr-catalog/src/keywords.rs#L1), [`core/dr-catalog/src/merge.rs:1`](../core/dr-catalog/src/merge.rs#L1), [`core/dr-catalog/src/rating.rs:1`](../core/dr-catalog/src/rating.rs#L1), [`core/dr-catalog/src/schema.rs:1059`](../core/dr-catalog/src/schema.rs#L1059), [`core/dr-catalog/src/schema.rs:556`](../core/dr-catalog/src/schema.rs#L556), [`core/dr-decode/src/lib.rs:285`](../core/dr-decode/src/lib.rs#L285), [`core/dr-decode/src/lib.rs:404`](../core/dr-decode/src/lib.rs#L404), [`core/dr-pipeline/src/sidecar.rs:135`](../core/dr-pipeline/src/sidecar.rs#L135), [`ui/dr-ui/src/collections_ui.rs:1558`](../ui/dr-ui/src/collections_ui.rs#L1558), [`ui/dr-ui/src/collections_ui.rs:1577`](../ui/dr-ui/src/collections_ui.rs#L1577), [`ui/dr-ui/src/collections_ui.rs:243`](../ui/dr-ui/src/collections_ui.rs#L243), [`ui/dr-ui/src/collections_ui.rs:340`](../ui/dr-ui/src/collections_ui.rs#L340), [`ui/dr-ui/src/collections_ui.rs:89`](../ui/dr-ui/src/collections_ui.rs#L89), [`ui/dr-ui/src/library.rs:3917`](../ui/dr-ui/src/library.rs#L3917), [`ui/dr-ui/src/library_ui.rs:631`](../ui/dr-ui/src/library_ui.rs#L631), [`ui/dr-ui/src/library_ui.rs:6389`](../ui/dr-ui/src/library_ui.rs#L6389), [`ui/dr-ui/src/library_ui.rs:6400`](../ui/dr-ui/src/library_ui.rs#L6400), [`ui/dr-ui/src/library_ui.rs:6413`](../ui/dr-ui/src/library_ui.rs#L6413), [`ui/dr-ui/src/library_ui.rs:6428`](../ui/dr-ui/src/library_ui.rs#L6428), [`ui/dr-ui/src/library_ui.rs:6437`](../ui/dr-ui/src/library_ui.rs#L6437), [`ui/dr-ui/ui/app.slint:264`](../ui/dr-ui/ui/app.slint#L264), [`ui/dr-ui/ui/app.slint:445`](../ui/dr-ui/ui/app.slint#L445), [`ui/dr-ui/ui/library.slint:1225`](../ui/dr-ui/ui/library.slint#L1225), [`ui/dr-ui/ui/library.slint:1228`](../ui/dr-ui/ui/library.slint#L1228), [`ui/dr-ui/ui/library.slint:18`](../ui/dr-ui/ui/library.slint#L18), [`ui/dr-ui/ui/library.slint:856`](../ui/dr-ui/ui/library.slint#L856), [`ui/dr-ui/ui/library.slint:908`](../ui/dr-ui/ui/library.slint#L908) |
+| FR-CAT-6 | [`core/dr-catalog/src/collections.rs:1`](../core/dr-catalog/src/collections.rs#L1), [`core/dr-catalog/src/keywords.rs:1`](../core/dr-catalog/src/keywords.rs#L1), [`core/dr-catalog/src/lib.rs:1`](../core/dr-catalog/src/lib.rs#L1), [`core/dr-catalog/src/query.rs:1`](../core/dr-catalog/src/query.rs#L1), [`core/dr-catalog/src/rating.rs:1`](../core/dr-catalog/src/rating.rs#L1), [`core/dr-catalog/src/schema.rs:556`](../core/dr-catalog/src/schema.rs#L556), [`core/dr-types/src/selector.rs:1`](../core/dr-types/src/selector.rs#L1), [`core/dr-types/src/settings.rs:63`](../core/dr-types/src/settings.rs#L63), [`core/dr-types/src/time.rs:67`](../core/dr-types/src/time.rs#L67), [`core/dr-types/src/time.rs:90`](../core/dr-types/src/time.rs#L90), [`ui/dr-ui/src/library.rs:213`](../ui/dr-ui/src/library.rs#L213), [`ui/dr-ui/src/library.rs:4163`](../ui/dr-ui/src/library.rs#L4163), [`ui/dr-ui/src/library_ui.rs:321`](../ui/dr-ui/src/library_ui.rs#L321), [`ui/dr-ui/src/library_ui.rs:393`](../ui/dr-ui/src/library_ui.rs#L393), [`ui/dr-ui/src/library_ui.rs:5203`](../ui/dr-ui/src/library_ui.rs#L5203), [`ui/dr-ui/src/library_ui.rs:5256`](../ui/dr-ui/src/library_ui.rs#L5256), [`ui/dr-ui/src/library_ui.rs:6529`](../ui/dr-ui/src/library_ui.rs#L6529), [`ui/dr-ui/ui/app.slint:267`](../ui/dr-ui/ui/app.slint#L267), [`ui/dr-ui/ui/app.slint:445`](../ui/dr-ui/ui/app.slint#L445), [`ui/dr-ui/ui/app.slint:690`](../ui/dr-ui/ui/app.slint#L690), [`ui/dr-ui/ui/library.slint:109`](../ui/dr-ui/ui/library.slint#L109), [`ui/dr-ui/ui/library.slint:1301`](../ui/dr-ui/ui/library.slint#L1301), [`ui/dr-ui/ui/library.slint:908`](../ui/dr-ui/ui/library.slint#L908), [`ui/dr-ui/ui/settings.slint:147`](../ui/dr-ui/ui/settings.slint#L147) |
+| FR-CAT-7 | [`core/dr-catalog/src/collections.rs:1`](../core/dr-catalog/src/collections.rs#L1), [`core/dr-catalog/src/merge.rs:1`](../core/dr-catalog/src/merge.rs#L1), [`core/dr-catalog/src/sync.rs:1`](../core/dr-catalog/src/sync.rs#L1), [`core/dr-types/src/selector.rs:1`](../core/dr-types/src/selector.rs#L1), [`ui/dr-ui/src/collections_ui.rs:1673`](../ui/dr-ui/src/collections_ui.rs#L1673), [`ui/dr-ui/src/collections_ui.rs:1`](../ui/dr-ui/src/collections_ui.rs#L1), [`ui/dr-ui/src/derived_sync.rs:1`](../ui/dr-ui/src/derived_sync.rs#L1), [`ui/dr-ui/src/library_ui.rs:3489`](../ui/dr-ui/src/library_ui.rs#L3489), [`ui/dr-ui/src/library_ui.rs:4182`](../ui/dr-ui/src/library_ui.rs#L4182), [`ui/dr-ui/ui/app.slint:440`](../ui/dr-ui/ui/app.slint#L440), [`ui/dr-ui/ui/collections.slint:4`](../ui/dr-ui/ui/collections.slint#L4), [`ui/dr-ui/ui/library.slint:2564`](../ui/dr-ui/ui/library.slint#L2564), [`ui/dr-ui/ui/library.slint:879`](../ui/dr-ui/ui/library.slint#L879), [`ui/dr-ui/ui/library.slint:898`](../ui/dr-ui/ui/library.slint#L898) |
+| FR-CAT-8 | [`core/dr-pipeline/src/graph.rs:345`](../core/dr-pipeline/src/graph.rs#L345), [`core/dr-pipeline/src/graph.rs:384`](../core/dr-pipeline/src/graph.rs#L384), [`core/dr-pipeline/src/ops/curve.rs:137`](../core/dr-pipeline/src/ops/curve.rs#L137), [`core/dr-pipeline/src/ops/curve.rs:656`](../core/dr-pipeline/src/ops/curve.rs#L656), [`core/dr-pipeline/src/sidecar.rs:1636`](../core/dr-pipeline/src/sidecar.rs#L1636), [`core/dr-pipeline/src/sidecar.rs:92`](../core/dr-pipeline/src/sidecar.rs#L92), [`core/dr-pipeline/src/state.rs:1`](../core/dr-pipeline/src/state.rs#L1), [`core/dr-pipeline/src/state.rs:75`](../core/dr-pipeline/src/state.rs#L75), [`core/dr-pipeline/tests/tone_curve.rs:34`](../core/dr-pipeline/tests/tone_curve.rs#L34), [`ui/dr-ui/src/develop.rs:3345`](../ui/dr-ui/src/develop.rs#L3345), [`ui/dr-ui/src/develop.rs:3374`](../ui/dr-ui/src/develop.rs#L3374), [`ui/dr-ui/src/export.rs:750`](../ui/dr-ui/src/export.rs#L750), [`ui/dr-ui/src/lib.rs:1376`](../ui/dr-ui/src/lib.rs#L1376), [`ui/dr-ui/src/lib.rs:1777`](../ui/dr-ui/src/lib.rs#L1777), [`ui/dr-ui/src/lib.rs:1912`](../ui/dr-ui/src/lib.rs#L1912), [`ui/dr-ui/src/lib.rs:501`](../ui/dr-ui/src/lib.rs#L501), [`ui/dr-ui/src/lib.rs:926`](../ui/dr-ui/src/lib.rs#L926), [`ui/dr-ui/src/library.rs:1787`](../ui/dr-ui/src/library.rs#L1787), [`ui/dr-ui/src/library.rs:459`](../ui/dr-ui/src/library.rs#L459), [`ui/dr-ui/src/library.rs:506`](../ui/dr-ui/src/library.rs#L506), [`ui/dr-ui/src/library.rs:543`](../ui/dr-ui/src/library.rs#L543), [`ui/dr-ui/src/library.rs:790`](../ui/dr-ui/src/library.rs#L790), [`ui/dr-ui/src/library_ui.rs:4884`](../ui/dr-ui/src/library_ui.rs#L4884), [`ui/dr-ui/src/sidecar_cache.rs:1`](../ui/dr-ui/src/sidecar_cache.rs#L1) |
+| FR-CAT-9 | [`core/dr-catalog/src/cache.rs:1`](../core/dr-catalog/src/cache.rs#L1), [`core/dr-catalog/src/scan.rs:1`](../core/dr-catalog/src/scan.rs#L1), [`core/dr-catalog/src/schema.rs:613`](../core/dr-catalog/src/schema.rs#L613), [`core/dr-catalog/src/walk.rs:162`](../core/dr-catalog/src/walk.rs#L162), [`core/dr-catalog/src/walk.rs:1`](../core/dr-catalog/src/walk.rs#L1), [`core/dr-catalog/src/walk.rs:435`](../core/dr-catalog/src/walk.rs#L435), [`core/dr-catalog/src/walk.rs:704`](../core/dr-catalog/src/walk.rs#L704), [`core/dr-sync-nextcloud/src/desktop_client.rs:30`](../core/dr-sync-nextcloud/src/desktop_client.rs#L30), [`core/dr-sync/src/reachability.rs:1`](../core/dr-sync/src/reachability.rs#L1), [`core/dr-types/src/lib.rs:119`](../core/dr-types/src/lib.rs#L119), [`ui/dr-ui/src/develop.rs:2870`](../ui/dr-ui/src/develop.rs#L2870), [`ui/dr-ui/src/library.rs:148`](../ui/dr-ui/src/library.rs#L148), [`ui/dr-ui/src/library.rs:1747`](../ui/dr-ui/src/library.rs#L1747), [`ui/dr-ui/src/library.rs:1823`](../ui/dr-ui/src/library.rs#L1823), [`ui/dr-ui/src/library.rs:233`](../ui/dr-ui/src/library.rs#L233), [`ui/dr-ui/src/library.rs:4270`](../ui/dr-ui/src/library.rs#L4270), [`ui/dr-ui/src/library.rs:543`](../ui/dr-ui/src/library.rs#L543), [`ui/dr-ui/src/library.rs:774`](../ui/dr-ui/src/library.rs#L774), [`ui/dr-ui/src/library.rs:790`](../ui/dr-ui/src/library.rs#L790), [`ui/dr-ui/src/library.rs:844`](../ui/dr-ui/src/library.rs#L844), [`ui/dr-ui/src/library_ui.rs:1580`](../ui/dr-ui/src/library_ui.rs#L1580), [`ui/dr-ui/src/library_ui.rs:1606`](../ui/dr-ui/src/library_ui.rs#L1606), [`ui/dr-ui/src/library_ui.rs:1622`](../ui/dr-ui/src/library_ui.rs#L1622), [`ui/dr-ui/src/library_ui.rs:1716`](../ui/dr-ui/src/library_ui.rs#L1716), [`ui/dr-ui/src/library_ui.rs:232`](../ui/dr-ui/src/library_ui.rs#L232), [`ui/dr-ui/src/library_ui.rs:2332`](../ui/dr-ui/src/library_ui.rs#L2332), [`ui/dr-ui/src/library_ui.rs:265`](../ui/dr-ui/src/library_ui.rs#L265), [`ui/dr-ui/src/library_ui.rs:2770`](../ui/dr-ui/src/library_ui.rs#L2770), [`ui/dr-ui/src/library_ui.rs:2992`](../ui/dr-ui/src/library_ui.rs#L2992), [`ui/dr-ui/src/library_ui.rs:3270`](../ui/dr-ui/src/library_ui.rs#L3270), [`ui/dr-ui/src/library_ui.rs:3358`](../ui/dr-ui/src/library_ui.rs#L3358), [`ui/dr-ui/src/library_ui.rs:3540`](../ui/dr-ui/src/library_ui.rs#L3540), [`ui/dr-ui/src/library_ui.rs:3654`](../ui/dr-ui/src/library_ui.rs#L3654), [`ui/dr-ui/src/library_ui.rs:446`](../ui/dr-ui/src/library_ui.rs#L446), [`ui/dr-ui/src/library_ui.rs:504`](../ui/dr-ui/src/library_ui.rs#L504), [`ui/dr-ui/src/library_ui.rs:5301`](../ui/dr-ui/src/library_ui.rs#L5301), [`ui/dr-ui/src/library_ui.rs:5416`](../ui/dr-ui/src/library_ui.rs#L5416), [`ui/dr-ui/src/presets.rs:326`](../ui/dr-ui/src/presets.rs#L326), [`ui/dr-ui/src/presets.rs:338`](../ui/dr-ui/src/presets.rs#L338), [`ui/dr-ui/src/sidecar_cache.rs:1`](../ui/dr-ui/src/sidecar_cache.rs#L1) |
 | FR-CULL-1 | [`core/dr-decode/src/preview.rs:121`](../core/dr-decode/src/preview.rs#L121) |
 | FR-CULL-10 | [`core/dr-catalog/src/faces.rs:1`](../core/dr-catalog/src/faces.rs#L1), [`core/dr-catalog/src/schema.rs:357`](../core/dr-catalog/src/schema.rs#L357), [`core/dr-catalog/src/schema.rs:442`](../core/dr-catalog/src/schema.rs#L442), [`core/dr-face/src/neighbours.rs:1`](../core/dr-face/src/neighbours.rs#L1), [`ui/dr-ui/src/develop.rs:119`](../ui/dr-ui/src/develop.rs#L119), [`ui/dr-ui/src/develop.rs:128`](../ui/dr-ui/src/develop.rs#L128), [`ui/dr-ui/src/develop.rs:1793`](../ui/dr-ui/src/develop.rs#L1793), [`ui/dr-ui/src/develop.rs:194`](../ui/dr-ui/src/develop.rs#L194), [`ui/dr-ui/src/develop.rs:589`](../ui/dr-ui/src/develop.rs#L589), [`ui/dr-ui/src/faces.rs:1`](../ui/dr-ui/src/faces.rs#L1), [`ui/dr-ui/src/identity.rs:1`](../ui/dr-ui/src/identity.rs#L1), [`ui/dr-ui/src/identity_ui.rs:1`](../ui/dr-ui/src/identity_ui.rs#L1), [`ui/dr-ui/src/lib.rs:1884`](../ui/dr-ui/src/lib.rs#L1884), [`ui/dr-ui/ui/identity.slint:1`](../ui/dr-ui/ui/identity.slint#L1) |
 | FR-CULL-11 | [`core/dr-catalog/src/faces.rs:1`](../core/dr-catalog/src/faces.rs#L1), [`core/dr-catalog/src/schema.rs:442`](../core/dr-catalog/src/schema.rs#L442), [`ui/dr-ui/src/identity.rs:1`](../ui/dr-ui/src/identity.rs#L1), [`ui/dr-ui/src/identity_ui.rs:1`](../ui/dr-ui/src/identity_ui.rs#L1), [`ui/dr-ui/src/library.rs:254`](../ui/dr-ui/src/library.rs#L254), [`ui/dr-ui/src/library.rs:284`](../ui/dr-ui/src/library.rs#L284), [`ui/dr-ui/ui/identity.slint:1`](../ui/dr-ui/ui/identity.slint#L1) |
 | FR-CULL-12 | [`core/dr-catalog/src/faces.rs:1`](../core/dr-catalog/src/faces.rs#L1), [`core/dr-catalog/src/schema.rs:357`](../core/dr-catalog/src/schema.rs#L357), [`core/dr-catalog/src/schema.rs:442`](../core/dr-catalog/src/schema.rs#L442), [`ui/dr-ui/src/identity.rs:1`](../ui/dr-ui/src/identity.rs#L1), [`ui/dr-ui/ui/identity.slint:1`](../ui/dr-ui/ui/identity.slint#L1) |
 | FR-CULL-2 | [`core/dr-decode/src/locate.rs:1`](../core/dr-decode/src/locate.rs#L1), [`core/dr-decode/src/preview.rs:148`](../core/dr-decode/src/preview.rs#L148), [`ui/dr-ui/src/import.rs:463`](../ui/dr-ui/src/import.rs#L463) |
 | FR-CULL-4 | [`core/dr-catalog/src/rating.rs:1`](../core/dr-catalog/src/rating.rs#L1), [`core/dr-pipeline/src/sidecar.rs:135`](../core/dr-pipeline/src/sidecar.rs#L135), [`ui/dr-ui/src/library.rs:213`](../ui/dr-ui/src/library.rs#L213), [`ui/dr-ui/src/library.rs:459`](../ui/dr-ui/src/library.rs#L459) |
-| FR-CULL-8 | [`core/dr-catalog/src/face_shard.rs:1`](../core/dr-catalog/src/face_shard.rs#L1), [`core/dr-catalog/src/faces.rs:1`](../core/dr-catalog/src/faces.rs#L1), [`core/dr-catalog/src/schema.rs:401`](../core/dr-catalog/src/schema.rs#L401), [`core/dr-catalog/src/schema.rs:442`](../core/dr-catalog/src/schema.rs#L442), [`ui/dr-ui/src/faces.rs:1`](../ui/dr-ui/src/faces.rs#L1), [`ui/dr-ui/src/library.rs:2731`](../ui/dr-ui/src/library.rs#L2731), [`ui/dr-ui/src/library.rs:2835`](../ui/dr-ui/src/library.rs#L2835), [`ui/dr-ui/ui/settings.slint:404`](../ui/dr-ui/ui/settings.slint#L404), [`ui/dr-ui/ui/settings.slint:81`](../ui/dr-ui/ui/settings.slint#L81) |
+| FR-CULL-8 | [`core/dr-catalog/src/face_shard.rs:1`](../core/dr-catalog/src/face_shard.rs#L1), [`core/dr-catalog/src/faces.rs:1`](../core/dr-catalog/src/faces.rs#L1), [`core/dr-catalog/src/schema.rs:401`](../core/dr-catalog/src/schema.rs#L401), [`core/dr-catalog/src/schema.rs:442`](../core/dr-catalog/src/schema.rs#L442), [`ui/dr-ui/src/faces.rs:1`](../ui/dr-ui/src/faces.rs#L1), [`ui/dr-ui/src/library.rs:2849`](../ui/dr-ui/src/library.rs#L2849), [`ui/dr-ui/src/library.rs:2953`](../ui/dr-ui/src/library.rs#L2953), [`ui/dr-ui/ui/settings.slint:404`](../ui/dr-ui/ui/settings.slint#L404), [`ui/dr-ui/ui/settings.slint:81`](../ui/dr-ui/ui/settings.slint#L81) |
 | FR-CULL-9 | [`core/dr-catalog/src/faces.rs:1`](../core/dr-catalog/src/faces.rs#L1), [`core/dr-catalog/src/schema.rs:442`](../core/dr-catalog/src/schema.rs#L442), [`core/dr-face/src/neighbours.rs:1`](../core/dr-face/src/neighbours.rs#L1), [`ui/dr-ui/src/faces.rs:1`](../ui/dr-ui/src/faces.rs#L1), [`ui/dr-ui/src/identity_ui.rs:1`](../ui/dr-ui/src/identity_ui.rs#L1) |
 | FR-DEV-2 | [`core/dr-pipeline/src/operation.rs:389`](../core/dr-pipeline/src/operation.rs#L389) |
 | FR-DEV-3 | [`core/dr-gpu/src/adjust.rs:2165`](../core/dr-gpu/src/adjust.rs#L2165), [`core/dr-gpu/src/adjust.rs:651`](../core/dr-gpu/src/adjust.rs#L651), [`core/dr-gpu/src/adjust.rs:770`](../core/dr-gpu/src/adjust.rs#L770), [`core/dr-gpu/src/adjust.rs:84`](../core/dr-gpu/src/adjust.rs#L84), [`core/dr-gpu/tests/tone_curve.rs:1`](../core/dr-gpu/tests/tone_curve.rs#L1), [`core/dr-pipeline/src/detail.rs:387`](../core/dr-pipeline/src/detail.rs#L387), [`core/dr-pipeline/src/detail.rs:465`](../core/dr-pipeline/src/detail.rs#L465), [`core/dr-pipeline/src/framing.rs:191`](../core/dr-pipeline/src/framing.rs#L191), [`core/dr-pipeline/src/framing.rs:365`](../core/dr-pipeline/src/framing.rs#L365), [`core/dr-pipeline/src/framing.rs:620`](../core/dr-pipeline/src/framing.rs#L620), [`core/dr-pipeline/src/graph.rs:169`](../core/dr-pipeline/src/graph.rs#L169), [`core/dr-pipeline/src/graph.rs:577`](../core/dr-pipeline/src/graph.rs#L577), [`core/dr-pipeline/src/mask.rs:121`](../core/dr-pipeline/src/mask.rs#L121), [`core/dr-pipeline/src/operation.rs:330`](../core/dr-pipeline/src/operation.rs#L330), [`core/dr-pipeline/src/operation.rs:516`](../core/dr-pipeline/src/operation.rs#L516), [`core/dr-pipeline/src/ops/capture_sharpen.rs:1`](../core/dr-pipeline/src/ops/capture_sharpen.rs#L1), [`core/dr-pipeline/src/ops/capture_sharpen.rs:210`](../core/dr-pipeline/src/ops/capture_sharpen.rs#L210), [`core/dr-pipeline/src/ops/curve.rs:100`](../core/dr-pipeline/src/ops/curve.rs#L100), [`core/dr-pipeline/src/ops/curve.rs:1`](../core/dr-pipeline/src/ops/curve.rs#L1), [`core/dr-pipeline/src/ops/curve.rs:219`](../core/dr-pipeline/src/ops/curve.rs#L219), [`core/dr-pipeline/src/ops/curve.rs:635`](../core/dr-pipeline/src/ops/curve.rs#L635), [`core/dr-pipeline/src/ops/local_contrast.rs:1`](../core/dr-pipeline/src/ops/local_contrast.rs#L1), [`core/dr-pipeline/src/ops/noise_reduction.rs:1`](../core/dr-pipeline/src/ops/noise_reduction.rs#L1), [`core/dr-pipeline/src/ops/noise_reduction.rs:273`](../core/dr-pipeline/src/ops/noise_reduction.rs#L273), [`core/dr-pipeline/src/sidecar.rs:156`](../core/dr-pipeline/src/sidecar.rs#L156), [`core/dr-pipeline/src/sidecar.rs:1636`](../core/dr-pipeline/src/sidecar.rs#L1636), [`core/dr-pipeline/src/sidecar.rs:1696`](../core/dr-pipeline/src/sidecar.rs#L1696), [`core/dr-pipeline/tests/tone_curve.rs:1`](../core/dr-pipeline/tests/tone_curve.rs#L1), [`ui/dr-ui/src/develop.rs:101`](../ui/dr-ui/src/develop.rs#L101), [`ui/dr-ui/src/develop.rs:1297`](../ui/dr-ui/src/develop.rs#L1297), [`ui/dr-ui/src/develop.rs:163`](../ui/dr-ui/src/develop.rs#L163), [`ui/dr-ui/src/develop.rs:1775`](../ui/dr-ui/src/develop.rs#L1775), [`ui/dr-ui/src/develop.rs:1793`](../ui/dr-ui/src/develop.rs#L1793), [`ui/dr-ui/src/develop.rs:1807`](../ui/dr-ui/src/develop.rs#L1807), [`ui/dr-ui/src/develop.rs:1829`](../ui/dr-ui/src/develop.rs#L1829), [`ui/dr-ui/src/develop.rs:1975`](../ui/dr-ui/src/develop.rs#L1975), [`ui/dr-ui/src/develop.rs:2073`](../ui/dr-ui/src/develop.rs#L2073), [`ui/dr-ui/src/develop.rs:326`](../ui/dr-ui/src/develop.rs#L326), [`ui/dr-ui/src/develop.rs:3345`](../ui/dr-ui/src/develop.rs#L3345), [`ui/dr-ui/src/develop.rs:363`](../ui/dr-ui/src/develop.rs#L363), [`ui/dr-ui/src/develop.rs:3909`](../ui/dr-ui/src/develop.rs#L3909), [`ui/dr-ui/src/develop.rs:3963`](../ui/dr-ui/src/develop.rs#L3963), [`ui/dr-ui/src/develop.rs:4007`](../ui/dr-ui/src/develop.rs#L4007), [`ui/dr-ui/src/develop.rs:4057`](../ui/dr-ui/src/develop.rs#L4057), [`ui/dr-ui/src/develop.rs:628`](../ui/dr-ui/src/develop.rs#L628), [`ui/dr-ui/src/develop.rs:675`](../ui/dr-ui/src/develop.rs#L675), [`ui/dr-ui/src/lib.rs:1461`](../ui/dr-ui/src/lib.rs#L1461), [`ui/dr-ui/src/lib.rs:2162`](../ui/dr-ui/src/lib.rs#L2162), [`ui/dr-ui/src/lib.rs:319`](../ui/dr-ui/src/lib.rs#L319), [`ui/dr-ui/src/library.rs:506`](../ui/dr-ui/src/library.rs#L506), [`ui/dr-ui/src/masks_ui.rs:218`](../ui/dr-ui/src/masks_ui.rs#L218), [`ui/dr-ui/src/masks_ui.rs:41`](../ui/dr-ui/src/masks_ui.rs#L41), [`ui/dr-ui/src/masks_ui.rs:816`](../ui/dr-ui/src/masks_ui.rs#L816), [`ui/dr-ui/src/masks_ui.rs:930`](../ui/dr-ui/src/masks_ui.rs#L930), [`ui/dr-ui/src/segmentation.rs:219`](../ui/dr-ui/src/segmentation.rs#L219), [`ui/dr-ui/src/segmentation.rs:322`](../ui/dr-ui/src/segmentation.rs#L322), [`ui/dr-ui/src/segmentation.rs:350`](../ui/dr-ui/src/segmentation.rs#L350), [`ui/dr-ui/ui/app.slint:1766`](../ui/dr-ui/ui/app.slint#L1766), [`ui/dr-ui/ui/app.slint:793`](../ui/dr-ui/ui/app.slint#L793), [`ui/dr-ui/ui/masks.slint:490`](../ui/dr-ui/ui/masks.slint#L490) |
@@ -67,7 +67,7 @@ _None._
 | FR-DEV-3h | [`core/dr-decode/src/lib.rs:404`](../core/dr-decode/src/lib.rs#L404), [`core/dr-decode/src/preview.rs:29`](../core/dr-decode/src/preview.rs#L29), [`core/dr-pipeline/src/framing.rs:205`](../core/dr-pipeline/src/framing.rs#L205), [`core/dr-pipeline/src/framing.rs:365`](../core/dr-pipeline/src/framing.rs#L365), [`core/dr-pipeline/src/framing.rs:927`](../core/dr-pipeline/src/framing.rs#L927), [`core/dr-types/src/lib.rs:336`](../core/dr-types/src/lib.rs#L336), [`core/dr-types/src/lib.rs:444`](../core/dr-types/src/lib.rs#L444), [`core/dr-types/src/lib.rs:456`](../core/dr-types/src/lib.rs#L456), [`core/dr-types/src/lib.rs:472`](../core/dr-types/src/lib.rs#L472), [`ui/dr-ui/src/develop.rs:138`](../ui/dr-ui/src/develop.rs#L138), [`ui/dr-ui/src/develop.rs:1992`](../ui/dr-ui/src/develop.rs#L1992), [`ui/dr-ui/src/segmentation.rs:322`](../ui/dr-ui/src/segmentation.rs#L322) |
 | FR-DEV-4 | [`core/dr-gpu/src/adjust.rs:770`](../core/dr-gpu/src/adjust.rs#L770), [`core/dr-gpu/src/lib.rs:217`](../core/dr-gpu/src/lib.rs#L217), [`ui/dr-ui/ui/crop.slint:1`](../ui/dr-ui/ui/crop.slint#L1) |
 | FR-DEV-5 | [`core/dr-pipeline/src/graph.rs:345`](../core/dr-pipeline/src/graph.rs#L345), [`core/dr-pipeline/src/graph.rs:384`](../core/dr-pipeline/src/graph.rs#L384), [`core/dr-pipeline/src/history.rs:102`](../core/dr-pipeline/src/history.rs#L102), [`core/dr-pipeline/src/history.rs:110`](../core/dr-pipeline/src/history.rs#L110), [`core/dr-pipeline/src/history.rs:127`](../core/dr-pipeline/src/history.rs#L127), [`core/dr-pipeline/src/history.rs:184`](../core/dr-pipeline/src/history.rs#L184), [`core/dr-pipeline/src/history.rs:1`](../core/dr-pipeline/src/history.rs#L1), [`core/dr-pipeline/src/history.rs:214`](../core/dr-pipeline/src/history.rs#L214), [`core/dr-pipeline/src/history.rs:234`](../core/dr-pipeline/src/history.rs#L234), [`core/dr-pipeline/src/history.rs:293`](../core/dr-pipeline/src/history.rs#L293), [`core/dr-pipeline/src/history.rs:479`](../core/dr-pipeline/src/history.rs#L479), [`core/dr-pipeline/src/history.rs:489`](../core/dr-pipeline/src/history.rs#L489), [`core/dr-pipeline/src/history.rs:499`](../core/dr-pipeline/src/history.rs#L499), [`core/dr-pipeline/src/history.rs:526`](../core/dr-pipeline/src/history.rs#L526), [`core/dr-pipeline/src/history.rs:86`](../core/dr-pipeline/src/history.rs#L86), [`core/dr-pipeline/src/state.rs:1`](../core/dr-pipeline/src/state.rs#L1), [`core/dr-pipeline/src/state.rs:75`](../core/dr-pipeline/src/state.rs#L75), [`ui/dr-ui/src/develop.rs:2914`](../ui/dr-ui/src/develop.rs#L2914), [`ui/dr-ui/src/develop.rs:3397`](../ui/dr-ui/src/develop.rs#L3397), [`ui/dr-ui/src/develop.rs:3427`](../ui/dr-ui/src/develop.rs#L3427), [`ui/dr-ui/src/develop.rs:3440`](../ui/dr-ui/src/develop.rs#L3440), [`ui/dr-ui/src/develop.rs:3452`](../ui/dr-ui/src/develop.rs#L3452), [`ui/dr-ui/src/develop.rs:3468`](../ui/dr-ui/src/develop.rs#L3468), [`ui/dr-ui/src/develop.rs:3500`](../ui/dr-ui/src/develop.rs#L3500), [`ui/dr-ui/src/develop.rs:3504`](../ui/dr-ui/src/develop.rs#L3504), [`ui/dr-ui/src/develop.rs:3523`](../ui/dr-ui/src/develop.rs#L3523), [`ui/dr-ui/src/develop.rs:3539`](../ui/dr-ui/src/develop.rs#L3539), [`ui/dr-ui/src/develop.rs:610`](../ui/dr-ui/src/develop.rs#L610), [`ui/dr-ui/src/labels.rs:12`](../ui/dr-ui/src/labels.rs#L12), [`ui/dr-ui/src/labels.rs:215`](../ui/dr-ui/src/labels.rs#L215), [`ui/dr-ui/src/lib.rs:1409`](../ui/dr-ui/src/lib.rs#L1409), [`ui/dr-ui/src/lib.rs:1439`](../ui/dr-ui/src/lib.rs#L1439), [`ui/dr-ui/src/lib.rs:1447`](../ui/dr-ui/src/lib.rs#L1447), [`ui/dr-ui/src/lib.rs:2332`](../ui/dr-ui/src/lib.rs#L2332), [`ui/dr-ui/ui/history.slint:1`](../ui/dr-ui/ui/history.slint#L1) |
-| FR-DEV-6 | [`core/dr-pipeline/src/preset.rs:1`](../core/dr-pipeline/src/preset.rs#L1), [`core/dr-types/src/settings.rs:182`](../core/dr-types/src/settings.rs#L182), [`ui/dr-ui/src/develop.rs:3339`](../ui/dr-ui/src/develop.rs#L3339), [`ui/dr-ui/src/develop.rs:3360`](../ui/dr-ui/src/develop.rs#L3360), [`ui/dr-ui/src/lib.rs:1376`](../ui/dr-ui/src/lib.rs#L1376), [`ui/dr-ui/src/library.rs:1669`](../ui/dr-ui/src/library.rs#L1669), [`ui/dr-ui/src/library.rs:459`](../ui/dr-ui/src/library.rs#L459), [`ui/dr-ui/src/library.rs:487`](../ui/dr-ui/src/library.rs#L487), [`ui/dr-ui/src/library_ui.rs:2575`](../ui/dr-ui/src/library_ui.rs#L2575), [`ui/dr-ui/src/library_ui.rs:2975`](../ui/dr-ui/src/library_ui.rs#L2975), [`ui/dr-ui/src/library_ui.rs:472`](../ui/dr-ui/src/library_ui.rs#L472), [`ui/dr-ui/src/presets.rs:1`](../ui/dr-ui/src/presets.rs#L1), [`ui/dr-ui/src/settings_ui.rs:549`](../ui/dr-ui/src/settings_ui.rs#L549), [`ui/dr-ui/ui/adjust.slint:613`](../ui/dr-ui/ui/adjust.slint#L613), [`ui/dr-ui/ui/library.slint:1328`](../ui/dr-ui/ui/library.slint#L1328), [`ui/dr-ui/ui/library.slint:837`](../ui/dr-ui/ui/library.slint#L837), [`ui/dr-ui/ui/library.slint:919`](../ui/dr-ui/ui/library.slint#L919), [`ui/dr-ui/ui/settings.slint:100`](../ui/dr-ui/ui/settings.slint#L100) |
+| FR-DEV-6 | [`core/dr-pipeline/src/preset.rs:1`](../core/dr-pipeline/src/preset.rs#L1), [`core/dr-types/src/settings.rs:182`](../core/dr-types/src/settings.rs#L182), [`ui/dr-ui/src/develop.rs:3339`](../ui/dr-ui/src/develop.rs#L3339), [`ui/dr-ui/src/develop.rs:3360`](../ui/dr-ui/src/develop.rs#L3360), [`ui/dr-ui/src/lib.rs:1376`](../ui/dr-ui/src/lib.rs#L1376), [`ui/dr-ui/src/library.rs:1787`](../ui/dr-ui/src/library.rs#L1787), [`ui/dr-ui/src/library.rs:459`](../ui/dr-ui/src/library.rs#L459), [`ui/dr-ui/src/library.rs:487`](../ui/dr-ui/src/library.rs#L487), [`ui/dr-ui/src/library_ui.rs:2592`](../ui/dr-ui/src/library_ui.rs#L2592), [`ui/dr-ui/src/library_ui.rs:2992`](../ui/dr-ui/src/library_ui.rs#L2992), [`ui/dr-ui/src/library_ui.rs:472`](../ui/dr-ui/src/library_ui.rs#L472), [`ui/dr-ui/src/presets.rs:1`](../ui/dr-ui/src/presets.rs#L1), [`ui/dr-ui/src/settings_ui.rs:549`](../ui/dr-ui/src/settings_ui.rs#L549), [`ui/dr-ui/ui/adjust.slint:613`](../ui/dr-ui/ui/adjust.slint#L613), [`ui/dr-ui/ui/library.slint:1328`](../ui/dr-ui/ui/library.slint#L1328), [`ui/dr-ui/ui/library.slint:837`](../ui/dr-ui/ui/library.slint#L837), [`ui/dr-ui/ui/library.slint:919`](../ui/dr-ui/ui/library.slint#L919), [`ui/dr-ui/ui/settings.slint:100`](../ui/dr-ui/ui/settings.slint#L100) |
 | FR-DEV-7 | [`core/dr-pipeline/src/history.rs:214`](../core/dr-pipeline/src/history.rs#L214), [`core/dr-pipeline/src/history.rs:499`](../core/dr-pipeline/src/history.rs#L499), [`core/dr-pipeline/src/history.rs:526`](../core/dr-pipeline/src/history.rs#L526), [`ui/dr-ui/src/develop.rs:3468`](../ui/dr-ui/src/develop.rs#L3468), [`ui/dr-ui/src/develop.rs:3500`](../ui/dr-ui/src/develop.rs#L3500), [`ui/dr-ui/src/lib.rs:1447`](../ui/dr-ui/src/lib.rs#L1447), [`ui/dr-ui/src/lib.rs:2332`](../ui/dr-ui/src/lib.rs#L2332), [`ui/dr-ui/ui/history.slint:1`](../ui/dr-ui/ui/history.slint#L1) |
 | FR-DEV-8 | [`core/dr-gpu/src/detail.rs:252`](../core/dr-gpu/src/detail.rs#L252), [`core/dr-gpu/src/detail.rs:434`](../core/dr-gpu/src/detail.rs#L434), [`core/dr-gpu/tests/detail_instances.rs:1`](../core/dr-gpu/tests/detail_instances.rs#L1), [`core/dr-gpu/tests/spot_removal.rs:1`](../core/dr-gpu/tests/spot_removal.rs#L1), [`core/dr-pipeline/src/detail.rs:363`](../core/dr-pipeline/src/detail.rs#L363), [`core/dr-pipeline/src/detail.rs:387`](../core/dr-pipeline/src/detail.rs#L387), [`core/dr-pipeline/src/detail.rs:422`](../core/dr-pipeline/src/detail.rs#L422), [`core/dr-pipeline/src/detail.rs:496`](../core/dr-pipeline/src/detail.rs#L496), [`core/dr-pipeline/src/graph.rs:113`](../core/dr-pipeline/src/graph.rs#L113), [`core/dr-pipeline/src/graph.rs:191`](../core/dr-pipeline/src/graph.rs#L191), [`core/dr-pipeline/src/graph.rs:685`](../core/dr-pipeline/src/graph.rs#L685), [`core/dr-pipeline/src/operation.rs:330`](../core/dr-pipeline/src/operation.rs#L330), [`core/dr-pipeline/src/operation.rs:554`](../core/dr-pipeline/src/operation.rs#L554), [`core/dr-pipeline/src/sidecar.rs:183`](../core/dr-pipeline/src/sidecar.rs#L183), [`core/dr-pipeline/src/sidecar.rs:352`](../core/dr-pipeline/src/sidecar.rs#L352), [`core/dr-pipeline/src/sidecar.rs:672`](../core/dr-pipeline/src/sidecar.rs#L672), [`core/dr-pipeline/src/sidecar.rs:808`](../core/dr-pipeline/src/sidecar.rs#L808), [`core/dr-pipeline/src/sidecar.rs:862`](../core/dr-pipeline/src/sidecar.rs#L862), [`core/dr-pipeline/src/sidecar.rs:892`](../core/dr-pipeline/src/sidecar.rs#L892), [`core/dr-pipeline/src/spot.rs:115`](../core/dr-pipeline/src/spot.rs#L115), [`core/dr-pipeline/src/spot.rs:151`](../core/dr-pipeline/src/spot.rs#L151), [`core/dr-pipeline/src/spot.rs:1`](../core/dr-pipeline/src/spot.rs#L1), [`core/dr-pipeline/src/spot.rs:207`](../core/dr-pipeline/src/spot.rs#L207), [`core/dr-pipeline/src/spot.rs:387`](../core/dr-pipeline/src/spot.rs#L387), [`core/dr-pipeline/src/spot.rs:472`](../core/dr-pipeline/src/spot.rs#L472), [`core/dr-pipeline/src/spot.rs:582`](../core/dr-pipeline/src/spot.rs#L582), [`core/dr-pipeline/src/spot.rs:673`](../core/dr-pipeline/src/spot.rs#L673), [`core/dr-pipeline/src/state.rs:103`](../core/dr-pipeline/src/state.rs#L103), [`core/dr-pipeline/tests/spot_sidecar.rs:1`](../core/dr-pipeline/tests/spot_sidecar.rs#L1), [`core/dr-pipeline/tests/spots.rs:1`](../core/dr-pipeline/tests/spots.rs#L1), [`ui/dr-ui/src/develop.rs:2144`](../ui/dr-ui/src/develop.rs#L2144), [`ui/dr-ui/src/develop.rs:2182`](../ui/dr-ui/src/develop.rs#L2182), [`ui/dr-ui/src/develop.rs:2247`](../ui/dr-ui/src/develop.rs#L2247), [`ui/dr-ui/src/develop.rs:2330`](../ui/dr-ui/src/develop.rs#L2330), [`ui/dr-ui/src/develop.rs:2344`](../ui/dr-ui/src/develop.rs#L2344), [`ui/dr-ui/src/develop.rs:658`](../ui/dr-ui/src/develop.rs#L658), [`ui/dr-ui/src/labels.rs:52`](../ui/dr-ui/src/labels.rs#L52), [`ui/dr-ui/src/lib.rs:1468`](../ui/dr-ui/src/lib.rs#L1468), [`ui/dr-ui/src/lib.rs:2429`](../ui/dr-ui/src/lib.rs#L2429), [`ui/dr-ui/src/lib.rs:324`](../ui/dr-ui/src/lib.rs#L324), [`ui/dr-ui/src/spots_ui.rs:19`](../ui/dr-ui/src/spots_ui.rs#L19), [`ui/dr-ui/src/spots_ui.rs:1`](../ui/dr-ui/src/spots_ui.rs#L1), [`ui/dr-ui/src/spots_ui.rs:265`](../ui/dr-ui/src/spots_ui.rs#L265), [`ui/dr-ui/ui/adjust.slint:700`](../ui/dr-ui/ui/adjust.slint#L700), [`ui/dr-ui/ui/app.slint:108`](../ui/dr-ui/ui/app.slint#L108), [`ui/dr-ui/ui/app.slint:1671`](../ui/dr-ui/ui/app.slint#L1671), [`ui/dr-ui/ui/app.slint:1844`](../ui/dr-ui/ui/app.slint#L1844), [`ui/dr-ui/ui/app.slint:2162`](../ui/dr-ui/ui/app.slint#L2162), [`ui/dr-ui/ui/spots.slint:180`](../ui/dr-ui/ui/spots.slint#L180), [`ui/dr-ui/ui/spots.slint:48`](../ui/dr-ui/ui/spots.slint#L48), [`ui/dr-ui/ui/spots.slint:5`](../ui/dr-ui/ui/spots.slint#L5) |
 | FR-DSP-1 | [`core/dr-gpu/src/adjust.rs:2088`](../core/dr-gpu/src/adjust.rs#L2088), [`core/dr-gpu/src/adjust.rs:2165`](../core/dr-gpu/src/adjust.rs#L2165), [`core/dr-gpu/src/adjust.rs:2250`](../core/dr-gpu/src/adjust.rs#L2250), [`core/dr-gpu/src/adjust.rs:54`](../core/dr-gpu/src/adjust.rs#L54), [`core/dr-gpu/src/adjust.rs:770`](../core/dr-gpu/src/adjust.rs#L770), [`core/dr-gpu/src/lib.rs:54`](../core/dr-gpu/src/lib.rs#L54), [`core/dr-gpu/src/lib.rs:94`](../core/dr-gpu/src/lib.rs#L94), [`core/dr-gpu/tests/capture_sharpen.rs:200`](../core/dr-gpu/tests/capture_sharpen.rs#L200), [`core/dr-gpu/tests/detail_stage.rs:328`](../core/dr-gpu/tests/detail_stage.rs#L328), [`core/dr-gpu/tests/local_contrast.rs:263`](../core/dr-gpu/tests/local_contrast.rs#L263), [`core/dr-gpu/tests/noise_reduction.rs:378`](../core/dr-gpu/tests/noise_reduction.rs#L378), [`core/dr-pipeline/src/detail.rs:136`](../core/dr-pipeline/src/detail.rs#L136), [`core/dr-pipeline/src/detail.rs:465`](../core/dr-pipeline/src/detail.rs#L465), [`core/dr-pipeline/src/graph.rs:547`](../core/dr-pipeline/src/graph.rs#L547), [`core/dr-pipeline/src/graph.rs:577`](../core/dr-pipeline/src/graph.rs#L577), [`core/dr-pipeline/src/ops/capture_sharpen.rs:1`](../core/dr-pipeline/src/ops/capture_sharpen.rs#L1), [`core/dr-pipeline/src/ops/capture_sharpen.rs:657`](../core/dr-pipeline/src/ops/capture_sharpen.rs#L657), [`core/dr-pipeline/src/ops/local_contrast.rs:1`](../core/dr-pipeline/src/ops/local_contrast.rs#L1), [`core/dr-pipeline/src/ops/local_contrast.rs:672`](../core/dr-pipeline/src/ops/local_contrast.rs#L672), [`core/dr-pipeline/src/ops/noise_reduction.rs:698`](../core/dr-pipeline/src/ops/noise_reduction.rs#L698), [`core/dr-pipeline/src/spot.rs:673`](../core/dr-pipeline/src/spot.rs#L673), [`ui/dr-ui/src/develop.rs:2668`](../ui/dr-ui/src/develop.rs#L2668), [`ui/dr-ui/src/develop.rs:3698`](../ui/dr-ui/src/develop.rs#L3698), [`ui/dr-ui/src/develop.rs:4181`](../ui/dr-ui/src/develop.rs#L4181), [`ui/dr-ui/src/develop.rs:4215`](../ui/dr-ui/src/develop.rs#L4215), [`ui/dr-ui/src/lib.rs:72`](../ui/dr-ui/src/lib.rs#L72), [`ui/dr-ui/src/lib.rs:757`](../ui/dr-ui/src/lib.rs#L757), [`ui/dr-ui/src/lib.rs:816`](../ui/dr-ui/src/lib.rs#L816) |
@@ -82,22 +82,22 @@ _None._
 | FR-EXP-4 | [`core/dr-export/src/lib.rs:1`](../core/dr-export/src/lib.rs#L1), [`core/dr-export/src/sharpen.rs:1`](../core/dr-export/src/sharpen.rs#L1), [`core/dr-export/src/size.rs:1`](../core/dr-export/src/size.rs#L1), [`ui/dr-ui/src/settings_ui.rs:1`](../ui/dr-ui/src/settings_ui.rs#L1) |
 | FR-EXP-5 | [`ui/dr-ui/src/settings_store.rs:1`](../ui/dr-ui/src/settings_store.rs#L1) |
 | FR-EXP-6 | [`core/dr-export/src/lib.rs:1`](../core/dr-export/src/lib.rs#L1), [`core/dr-export/src/name.rs:1`](../core/dr-export/src/name.rs#L1), [`core/dr-types/src/settings.rs:1`](../core/dr-types/src/settings.rs#L1), [`ui/dr-ui/src/export.rs:1`](../ui/dr-ui/src/export.rs#L1), [`ui/dr-ui/src/lib.rs:362`](../ui/dr-ui/src/lib.rs#L362), [`ui/dr-ui/src/settings_ui.rs:1`](../ui/dr-ui/src/settings_ui.rs#L1), [`ui/dr-ui/src/settings_ui.rs:49`](../ui/dr-ui/src/settings_ui.rs#L49), [`ui/dr-ui/src/settings_ui.rs:604`](../ui/dr-ui/src/settings_ui.rs#L604) |
-| FR-EXP-7 | [`ui/dr-ui/src/activity.rs:83`](../ui/dr-ui/src/activity.rs#L83), [`ui/dr-ui/src/export.rs:1`](../ui/dr-ui/src/export.rs#L1), [`ui/dr-ui/src/export.rs:942`](../ui/dr-ui/src/export.rs#L942), [`ui/dr-ui/src/lib.rs:204`](../ui/dr-ui/src/lib.rs#L204), [`ui/dr-ui/src/lib.rs:2078`](../ui/dr-ui/src/lib.rs#L2078), [`ui/dr-ui/src/lib.rs:362`](../ui/dr-ui/src/lib.rs#L362), [`ui/dr-ui/src/lib.rs:397`](../ui/dr-ui/src/lib.rs#L397), [`ui/dr-ui/src/lib.rs:424`](../ui/dr-ui/src/lib.rs#L424), [`ui/dr-ui/src/library_ui.rs:3358`](../ui/dr-ui/src/library_ui.rs#L3358), [`ui/dr-ui/src/library_ui.rs:563`](../ui/dr-ui/src/library_ui.rs#L563), [`ui/dr-ui/src/library_ui.rs:6354`](../ui/dr-ui/src/library_ui.rs#L6354), [`ui/dr-ui/src/library_ui.rs:6431`](../ui/dr-ui/src/library_ui.rs#L6431), [`ui/dr-ui/src/library_ui.rs:6443`](../ui/dr-ui/src/library_ui.rs#L6443), [`ui/dr-ui/src/library_ui.rs:663`](../ui/dr-ui/src/library_ui.rs#L663), [`ui/dr-ui/src/library_ui.rs:720`](../ui/dr-ui/src/library_ui.rs#L720), [`ui/dr-ui/ui/app.slint:1372`](../ui/dr-ui/ui/app.slint#L1372), [`ui/dr-ui/ui/app.slint:929`](../ui/dr-ui/ui/app.slint#L929), [`ui/dr-ui/ui/library.slint:1336`](../ui/dr-ui/ui/library.slint#L1336), [`ui/dr-ui/ui/library.slint:841`](../ui/dr-ui/ui/library.slint#L841), [`ui/dr-ui/ui/library.slint:934`](../ui/dr-ui/ui/library.slint#L934) |
+| FR-EXP-7 | [`ui/dr-ui/src/activity.rs:83`](../ui/dr-ui/src/activity.rs#L83), [`ui/dr-ui/src/export.rs:1`](../ui/dr-ui/src/export.rs#L1), [`ui/dr-ui/src/export.rs:942`](../ui/dr-ui/src/export.rs#L942), [`ui/dr-ui/src/lib.rs:204`](../ui/dr-ui/src/lib.rs#L204), [`ui/dr-ui/src/lib.rs:2078`](../ui/dr-ui/src/lib.rs#L2078), [`ui/dr-ui/src/lib.rs:362`](../ui/dr-ui/src/lib.rs#L362), [`ui/dr-ui/src/lib.rs:397`](../ui/dr-ui/src/lib.rs#L397), [`ui/dr-ui/src/lib.rs:424`](../ui/dr-ui/src/lib.rs#L424), [`ui/dr-ui/src/library_ui.rs:3375`](../ui/dr-ui/src/library_ui.rs#L3375), [`ui/dr-ui/src/library_ui.rs:563`](../ui/dr-ui/src/library_ui.rs#L563), [`ui/dr-ui/src/library_ui.rs:6371`](../ui/dr-ui/src/library_ui.rs#L6371), [`ui/dr-ui/src/library_ui.rs:6448`](../ui/dr-ui/src/library_ui.rs#L6448), [`ui/dr-ui/src/library_ui.rs:6460`](../ui/dr-ui/src/library_ui.rs#L6460), [`ui/dr-ui/src/library_ui.rs:663`](../ui/dr-ui/src/library_ui.rs#L663), [`ui/dr-ui/src/library_ui.rs:720`](../ui/dr-ui/src/library_ui.rs#L720), [`ui/dr-ui/ui/app.slint:1372`](../ui/dr-ui/ui/app.slint#L1372), [`ui/dr-ui/ui/app.slint:929`](../ui/dr-ui/ui/app.slint#L929), [`ui/dr-ui/ui/library.slint:1336`](../ui/dr-ui/ui/library.slint#L1336), [`ui/dr-ui/ui/library.slint:841`](../ui/dr-ui/ui/library.slint#L841), [`ui/dr-ui/ui/library.slint:934`](../ui/dr-ui/ui/library.slint#L934) |
 | FR-EXP-8 | [`core/dr-decode/src/lib.rs:326`](../core/dr-decode/src/lib.rs#L326), [`core/dr-decode/src/lib.rs:350`](../core/dr-decode/src/lib.rs#L350), [`core/dr-decode/src/lib.rs:364`](../core/dr-decode/src/lib.rs#L364), [`core/dr-decode/src/lib.rs:71`](../core/dr-decode/src/lib.rs#L71), [`core/dr-decode/src/lib.rs:79`](../core/dr-decode/src/lib.rs#L79), [`core/dr-decode/src/lib.rs:82`](../core/dr-decode/src/lib.rs#L82), [`core/dr-decode/src/locate.rs:1164`](../core/dr-decode/src/locate.rs#L1164), [`core/dr-decode/src/locate.rs:1223`](../core/dr-decode/src/locate.rs#L1223), [`core/dr-decode/src/locate.rs:316`](../core/dr-decode/src/locate.rs#L316), [`core/dr-decode/src/locate.rs:487`](../core/dr-decode/src/locate.rs#L487), [`core/dr-decode/src/locate.rs:571`](../core/dr-decode/src/locate.rs#L571), [`core/dr-decode/src/locate.rs:584`](../core/dr-decode/src/locate.rs#L584), [`core/dr-decode/src/locate.rs:667`](../core/dr-decode/src/locate.rs#L667), [`core/dr-export/examples/export.rs:99`](../core/dr-export/examples/export.rs#L99), [`core/dr-export/src/encode.rs:117`](../core/dr-export/src/encode.rs#L117), [`core/dr-export/src/encode.rs:161`](../core/dr-export/src/encode.rs#L161), [`core/dr-export/src/encode.rs:1`](../core/dr-export/src/encode.rs#L1), [`core/dr-export/src/encode.rs:206`](../core/dr-export/src/encode.rs#L206), [`core/dr-export/src/encode.rs:235`](../core/dr-export/src/encode.rs#L235), [`core/dr-export/src/encode.rs:311`](../core/dr-export/src/encode.rs#L311), [`core/dr-export/src/encode.rs:325`](../core/dr-export/src/encode.rs#L325), [`core/dr-export/src/encode.rs:408`](../core/dr-export/src/encode.rs#L408), [`core/dr-export/src/encode.rs:456`](../core/dr-export/src/encode.rs#L456), [`core/dr-export/src/encode.rs:70`](../core/dr-export/src/encode.rs#L70), [`core/dr-export/src/encode.rs:795`](../core/dr-export/src/encode.rs#L795), [`core/dr-export/src/encode.rs:809`](../core/dr-export/src/encode.rs#L809), [`core/dr-export/src/encode.rs:850`](../core/dr-export/src/encode.rs#L850), [`core/dr-export/src/encode.rs:898`](../core/dr-export/src/encode.rs#L898), [`core/dr-export/src/exif.rs:1`](../core/dr-export/src/exif.rs#L1), [`core/dr-export/src/lib.rs:136`](../core/dr-export/src/lib.rs#L136), [`core/dr-export/src/metadata.rs:1`](../core/dr-export/src/metadata.rs#L1), [`core/dr-export/src/metadata.rs:41`](../core/dr-export/src/metadata.rs#L41), [`core/dr-export/src/metadata.rs:74`](../core/dr-export/src/metadata.rs#L74), [`core/dr-types/src/lib.rs:652`](../core/dr-types/src/lib.rs#L652), [`core/dr-types/src/settings.rs:313`](../core/dr-types/src/settings.rs#L313), [`ui/dr-ui/src/export.rs:619`](../ui/dr-ui/src/export.rs#L619), [`ui/dr-ui/src/export.rs:647`](../ui/dr-ui/src/export.rs#L647), [`ui/dr-ui/src/export.rs:777`](../ui/dr-ui/src/export.rs#L777), [`ui/dr-ui/src/export.rs:794`](../ui/dr-ui/src/export.rs#L794), [`ui/dr-ui/src/settings_ui.rs:1`](../ui/dr-ui/src/settings_ui.rs#L1) |
 | FR-EXP-9 | [`core/dr-decode/src/lib.rs:506`](../core/dr-decode/src/lib.rs#L506), [`core/dr-export/src/lib.rs:128`](../core/dr-export/src/lib.rs#L128), [`core/dr-export/src/lib.rs:1`](../core/dr-export/src/lib.rs#L1), [`core/dr-gpu/src/adjust.rs:1068`](../core/dr-gpu/src/adjust.rs#L1068), [`ui/dr-ui/src/develop.rs:2829`](../ui/dr-ui/src/develop.rs#L2829), [`ui/dr-ui/src/lib.rs:362`](../ui/dr-ui/src/lib.rs#L362) |
 | FR-NC-1 | [`core/dr-sync-nextcloud/src/auth.rs:132`](../core/dr-sync-nextcloud/src/auth.rs#L132), [`core/dr-sync-nextcloud/src/auth.rs:44`](../core/dr-sync-nextcloud/src/auth.rs#L44), [`core/dr-sync-nextcloud/src/provider.rs:1`](../core/dr-sync-nextcloud/src/provider.rs#L1), [`core/dr-sync/src/account.rs:355`](../core/dr-sync/src/account.rs#L355), [`ui/dr-ui/src/launch.rs:277`](../ui/dr-ui/src/launch.rs#L277), [`ui/dr-ui/src/launch.rs:61`](../ui/dr-ui/src/launch.rs#L61), [`ui/dr-ui/src/launch_ui.rs:417`](../ui/dr-ui/src/launch_ui.rs#L417) |
-| FR-NC-10 | [`core/dr-sync/src/account.rs:220`](../core/dr-sync/src/account.rs#L220), [`ui/dr-ui/src/export.rs:1`](../ui/dr-ui/src/export.rs#L1), [`ui/dr-ui/src/lib.rs:424`](../ui/dr-ui/src/lib.rs#L424), [`ui/dr-ui/src/library.rs:1068`](../ui/dr-ui/src/library.rs#L1068), [`ui/dr-ui/src/library.rs:1705`](../ui/dr-ui/src/library.rs#L1705), [`ui/dr-ui/src/library.rs:543`](../ui/dr-ui/src/library.rs#L543), [`ui/dr-ui/src/library.rs:844`](../ui/dr-ui/src/library.rs#L844), [`ui/dr-ui/src/library_ui.rs:1605`](../ui/dr-ui/src/library_ui.rs#L1605), [`ui/dr-ui/src/library_ui.rs:3358`](../ui/dr-ui/src/library_ui.rs#L3358), [`ui/dr-ui/src/library_ui.rs:504`](../ui/dr-ui/src/library_ui.rs#L504), [`ui/dr-ui/src/sidecar_cache.rs:1`](../ui/dr-ui/src/sidecar_cache.rs#L1) |
-| FR-NC-12 | [`core/dr-sync-folder/src/lib.rs:1`](../core/dr-sync-folder/src/lib.rs#L1), [`core/dr-sync-nextcloud/src/lib.rs:39`](../core/dr-sync-nextcloud/src/lib.rs#L39), [`core/dr-sync-nextcloud/src/lib.rs:913`](../core/dr-sync-nextcloud/src/lib.rs#L913), [`core/dr-sync-nextcloud/src/provider.rs:1`](../core/dr-sync-nextcloud/src/provider.rs#L1), [`core/dr-sync/src/account.rs:1`](../core/dr-sync/src/account.rs#L1), [`core/dr-sync/src/account.rs:81`](../core/dr-sync/src/account.rs#L81), [`core/dr-sync/src/lib.rs:211`](../core/dr-sync/src/lib.rs#L211), [`core/dr-sync/src/lib.rs:51`](../core/dr-sync/src/lib.rs#L51), [`core/dr-sync/src/provider.rs:106`](../core/dr-sync/src/provider.rs#L106), [`core/dr-sync/src/provider.rs:1`](../core/dr-sync/src/provider.rs#L1), [`core/dr-sync/src/provider.rs:53`](../core/dr-sync/src/provider.rs#L53), [`core/dr-sync/src/reachability.rs:1`](../core/dr-sync/src/reachability.rs#L1), [`ui/dr-ui/src/remote.rs:1`](../ui/dr-ui/src/remote.rs#L1) |
+| FR-NC-10 | [`core/dr-sync/src/account.rs:220`](../core/dr-sync/src/account.rs#L220), [`ui/dr-ui/src/export.rs:1`](../ui/dr-ui/src/export.rs#L1), [`ui/dr-ui/src/lib.rs:424`](../ui/dr-ui/src/lib.rs#L424), [`ui/dr-ui/src/library.rs:1068`](../ui/dr-ui/src/library.rs#L1068), [`ui/dr-ui/src/library.rs:1823`](../ui/dr-ui/src/library.rs#L1823), [`ui/dr-ui/src/library.rs:543`](../ui/dr-ui/src/library.rs#L543), [`ui/dr-ui/src/library.rs:844`](../ui/dr-ui/src/library.rs#L844), [`ui/dr-ui/src/library_ui.rs:1622`](../ui/dr-ui/src/library_ui.rs#L1622), [`ui/dr-ui/src/library_ui.rs:3375`](../ui/dr-ui/src/library_ui.rs#L3375), [`ui/dr-ui/src/library_ui.rs:504`](../ui/dr-ui/src/library_ui.rs#L504), [`ui/dr-ui/src/sidecar_cache.rs:1`](../ui/dr-ui/src/sidecar_cache.rs#L1) |
+| FR-NC-12 | [`core/dr-sync-folder/src/lib.rs:1`](../core/dr-sync-folder/src/lib.rs#L1), [`core/dr-sync-nextcloud/src/lib.rs:39`](../core/dr-sync-nextcloud/src/lib.rs#L39), [`core/dr-sync-nextcloud/src/lib.rs:913`](../core/dr-sync-nextcloud/src/lib.rs#L913), [`core/dr-sync-nextcloud/src/provider.rs:1`](../core/dr-sync-nextcloud/src/provider.rs#L1), [`core/dr-sync/src/account.rs:1`](../core/dr-sync/src/account.rs#L1), [`core/dr-sync/src/account.rs:81`](../core/dr-sync/src/account.rs#L81), [`core/dr-sync/src/lib.rs:218`](../core/dr-sync/src/lib.rs#L218), [`core/dr-sync/src/lib.rs:51`](../core/dr-sync/src/lib.rs#L51), [`core/dr-sync/src/provider.rs:106`](../core/dr-sync/src/provider.rs#L106), [`core/dr-sync/src/provider.rs:1`](../core/dr-sync/src/provider.rs#L1), [`core/dr-sync/src/provider.rs:53`](../core/dr-sync/src/provider.rs#L53), [`core/dr-sync/src/reachability.rs:1`](../core/dr-sync/src/reachability.rs#L1), [`ui/dr-ui/src/remote.rs:1`](../ui/dr-ui/src/remote.rs#L1) |
 | FR-NC-13 | [`core/dr-sync-folder/src/lib.rs:197`](../core/dr-sync-folder/src/lib.rs#L197), [`core/dr-sync-folder/src/lib.rs:1`](../core/dr-sync-folder/src/lib.rs#L1), [`core/dr-sync-folder/src/lib.rs:73`](../core/dr-sync-folder/src/lib.rs#L73), [`core/dr-sync/src/provider.rs:106`](../core/dr-sync/src/provider.rs#L106), [`ui/dr-ui/src/launch_ui.rs:316`](../ui/dr-ui/src/launch_ui.rs#L316), [`ui/dr-ui/src/remote.rs:1`](../ui/dr-ui/src/remote.rs#L1) |
 | FR-NC-2 | [`core/dr-sync/src/account.rs:1`](../core/dr-sync/src/account.rs#L1), [`core/dr-sync/src/account.rs:298`](../core/dr-sync/src/account.rs#L298), [`core/dr-sync/src/account.rs:355`](../core/dr-sync/src/account.rs#L355), [`core/dr-sync/src/account.rs:59`](../core/dr-sync/src/account.rs#L59), [`platform/dr-plat/src/secrets.rs:82`](../platform/dr-plat/src/secrets.rs#L82) |
-| FR-NC-3 | [`core/dr-decode/src/locate.rs:1`](../core/dr-decode/src/locate.rs#L1), [`core/dr-decode/src/preview.rs:148`](../core/dr-decode/src/preview.rs#L148), [`core/dr-sync/src/capability.rs:85`](../core/dr-sync/src/capability.rs#L85), [`core/dr-thumbs/src/lib.rs:1`](../core/dr-thumbs/src/lib.rs#L1), [`ui/dr-ui/src/library.rs:1`](../ui/dr-ui/src/library.rs#L1), [`ui/dr-ui/src/library.rs:2730`](../ui/dr-ui/src/library.rs#L2730), [`ui/dr-ui/src/library.rs:3200`](../ui/dr-ui/src/library.rs#L3200), [`ui/dr-ui/src/library_ui.rs:1`](../ui/dr-ui/src/library_ui.rs#L1), [`ui/dr-ui/src/library_ui.rs:3610`](../ui/dr-ui/src/library_ui.rs#L3610), [`ui/dr-ui/src/library_ui.rs:4575`](../ui/dr-ui/src/library_ui.rs#L4575), [`ui/dr-ui/ui/app.slint:319`](../ui/dr-ui/ui/app.slint#L319), [`ui/dr-ui/ui/settings.slint:372`](../ui/dr-ui/ui/settings.slint#L372), [`ui/dr-ui/ui/settings.slint:72`](../ui/dr-ui/ui/settings.slint#L72) |
-| FR-NC-4 | [`core/dr-sync-folder/src/lib.rs:197`](../core/dr-sync-folder/src/lib.rs#L197), [`core/dr-sync-nextcloud/src/propfind.rs:103`](../core/dr-sync-nextcloud/src/propfind.rs#L103), [`core/dr-sync-nextcloud/src/propfind.rs:51`](../core/dr-sync-nextcloud/src/propfind.rs#L51), [`core/dr-sync/src/capability.rs:6`](../core/dr-sync/src/capability.rs#L6), [`core/dr-sync/src/lib.rs:211`](../core/dr-sync/src/lib.rs#L211), [`core/dr-sync/src/scan.rs:93`](../core/dr-sync/src/scan.rs#L93), [`ui/dr-ui/src/launch.rs:61`](../ui/dr-ui/src/launch.rs#L61) |
+| FR-NC-3 | [`core/dr-decode/src/locate.rs:1`](../core/dr-decode/src/locate.rs#L1), [`core/dr-decode/src/preview.rs:148`](../core/dr-decode/src/preview.rs#L148), [`core/dr-sync/src/capability.rs:85`](../core/dr-sync/src/capability.rs#L85), [`core/dr-thumbs/src/lib.rs:1`](../core/dr-thumbs/src/lib.rs#L1), [`ui/dr-ui/src/library.rs:1`](../ui/dr-ui/src/library.rs#L1), [`ui/dr-ui/src/library.rs:2848`](../ui/dr-ui/src/library.rs#L2848), [`ui/dr-ui/src/library.rs:3356`](../ui/dr-ui/src/library.rs#L3356), [`ui/dr-ui/src/library_ui.rs:1`](../ui/dr-ui/src/library_ui.rs#L1), [`ui/dr-ui/src/library_ui.rs:3627`](../ui/dr-ui/src/library_ui.rs#L3627), [`ui/dr-ui/src/library_ui.rs:4592`](../ui/dr-ui/src/library_ui.rs#L4592), [`ui/dr-ui/ui/app.slint:319`](../ui/dr-ui/ui/app.slint#L319), [`ui/dr-ui/ui/settings.slint:372`](../ui/dr-ui/ui/settings.slint#L372), [`ui/dr-ui/ui/settings.slint:72`](../ui/dr-ui/ui/settings.slint#L72) |
+| FR-NC-4 | [`core/dr-sync-folder/src/lib.rs:197`](../core/dr-sync-folder/src/lib.rs#L197), [`core/dr-sync-nextcloud/src/propfind.rs:103`](../core/dr-sync-nextcloud/src/propfind.rs#L103), [`core/dr-sync-nextcloud/src/propfind.rs:51`](../core/dr-sync-nextcloud/src/propfind.rs#L51), [`core/dr-sync/src/capability.rs:6`](../core/dr-sync/src/capability.rs#L6), [`core/dr-sync/src/lib.rs:218`](../core/dr-sync/src/lib.rs#L218), [`core/dr-sync/src/scan.rs:93`](../core/dr-sync/src/scan.rs#L93), [`ui/dr-ui/src/launch.rs:61`](../ui/dr-ui/src/launch.rs#L61) |
 | FR-NC-5 | [`core/dr-sync-nextcloud/src/propfind.rs:51`](../core/dr-sync-nextcloud/src/propfind.rs#L51), [`ui/dr-ui/src/import.rs:488`](../ui/dr-ui/src/import.rs#L488) |
 | FR-NC-6 | [`ui/dr-ui/src/activity.rs:1`](../ui/dr-ui/src/activity.rs#L1) |
-| FR-NC-6a | [`core/dr-catalog/src/cache.rs:1`](../core/dr-catalog/src/cache.rs#L1), [`core/dr-catalog/src/schema.rs:1014`](../core/dr-catalog/src/schema.rs#L1014), [`core/dr-catalog/src/schema.rs:613`](../core/dr-catalog/src/schema.rs#L613), [`core/dr-sync-folder/src/borrow.rs:1`](../core/dr-sync-folder/src/borrow.rs#L1), [`core/dr-types/src/selector.rs:1`](../core/dr-types/src/selector.rs#L1), [`core/dr-types/src/settings.rs:1`](../core/dr-types/src/settings.rs#L1), [`ui/dr-ui/src/collections_ui.rs:3174`](../ui/dr-ui/src/collections_ui.rs#L3174), [`ui/dr-ui/src/collections_ui.rs:621`](../ui/dr-ui/src/collections_ui.rs#L621), [`ui/dr-ui/src/collections_ui.rs:683`](../ui/dr-ui/src/collections_ui.rs#L683), [`ui/dr-ui/src/lib.rs:1807`](../ui/dr-ui/src/lib.rs#L1807), [`ui/dr-ui/src/lib.rs:2698`](../ui/dr-ui/src/lib.rs#L2698), [`ui/dr-ui/src/library.rs:1449`](../ui/dr-ui/src/library.rs#L1449), [`ui/dr-ui/src/library.rs:1472`](../ui/dr-ui/src/library.rs#L1472), [`ui/dr-ui/src/library.rs:1629`](../ui/dr-ui/src/library.rs#L1629), [`ui/dr-ui/src/library_ui.rs:1065`](../ui/dr-ui/src/library_ui.rs#L1065), [`ui/dr-ui/src/library_ui.rs:1138`](../ui/dr-ui/src/library_ui.rs#L1138), [`ui/dr-ui/src/library_ui.rs:1239`](../ui/dr-ui/src/library_ui.rs#L1239), [`ui/dr-ui/src/library_ui.rs:1294`](../ui/dr-ui/src/library_ui.rs#L1294), [`ui/dr-ui/src/library_ui.rs:1412`](../ui/dr-ui/src/library_ui.rs#L1412), [`ui/dr-ui/src/library_ui.rs:1530`](../ui/dr-ui/src/library_ui.rs#L1530), [`ui/dr-ui/src/library_ui.rs:2057`](../ui/dr-ui/src/library_ui.rs#L2057), [`ui/dr-ui/src/library_ui.rs:273`](../ui/dr-ui/src/library_ui.rs#L273), [`ui/dr-ui/src/library_ui.rs:284`](../ui/dr-ui/src/library_ui.rs#L284), [`ui/dr-ui/src/library_ui.rs:292`](../ui/dr-ui/src/library_ui.rs#L292), [`ui/dr-ui/src/library_ui.rs:304`](../ui/dr-ui/src/library_ui.rs#L304), [`ui/dr-ui/src/library_ui.rs:313`](../ui/dr-ui/src/library_ui.rs#L313), [`ui/dr-ui/src/library_ui.rs:405`](../ui/dr-ui/src/library_ui.rs#L405), [`ui/dr-ui/src/library_ui.rs:415`](../ui/dr-ui/src/library_ui.rs#L415), [`ui/dr-ui/src/library_ui.rs:457`](../ui/dr-ui/src/library_ui.rs#L457), [`ui/dr-ui/src/library_ui.rs:520`](../ui/dr-ui/src/library_ui.rs#L520), [`ui/dr-ui/src/library_ui.rs:5301`](../ui/dr-ui/src/library_ui.rs#L5301), [`ui/dr-ui/src/library_ui.rs:5319`](../ui/dr-ui/src/library_ui.rs#L5319), [`ui/dr-ui/src/library_ui.rs:5331`](../ui/dr-ui/src/library_ui.rs#L5331), [`ui/dr-ui/src/library_ui.rs:551`](../ui/dr-ui/src/library_ui.rs#L551), [`ui/dr-ui/src/library_ui.rs:563`](../ui/dr-ui/src/library_ui.rs#L563), [`ui/dr-ui/src/settings_store.rs:1`](../ui/dr-ui/src/settings_store.rs#L1), [`ui/dr-ui/src/settings_ui.rs:1`](../ui/dr-ui/src/settings_ui.rs#L1), [`ui/dr-ui/ui/app.slint:2335`](../ui/dr-ui/ui/app.slint#L2335), [`ui/dr-ui/ui/app.slint:434`](../ui/dr-ui/ui/app.slint#L434), [`ui/dr-ui/ui/collections.slint:249`](../ui/dr-ui/ui/collections.slint#L249), [`ui/dr-ui/ui/collections.slint:369`](../ui/dr-ui/ui/collections.slint#L369), [`ui/dr-ui/ui/collections.slint:52`](../ui/dr-ui/ui/collections.slint#L52), [`ui/dr-ui/ui/collections.slint:682`](../ui/dr-ui/ui/collections.slint#L682), [`ui/dr-ui/ui/collections.slint:84`](../ui/dr-ui/ui/collections.slint#L84), [`ui/dr-ui/ui/icons.slint:260`](../ui/dr-ui/ui/icons.slint#L260), [`ui/dr-ui/ui/library.slint:980`](../ui/dr-ui/ui/library.slint#L980) |
+| FR-NC-6a | [`core/dr-catalog/src/cache.rs:1`](../core/dr-catalog/src/cache.rs#L1), [`core/dr-catalog/src/cache.rs:225`](../core/dr-catalog/src/cache.rs#L225), [`core/dr-catalog/src/schema.rs:1014`](../core/dr-catalog/src/schema.rs#L1014), [`core/dr-catalog/src/schema.rs:613`](../core/dr-catalog/src/schema.rs#L613), [`core/dr-sync-folder/src/borrow.rs:1`](../core/dr-sync-folder/src/borrow.rs#L1), [`core/dr-types/src/selector.rs:1`](../core/dr-types/src/selector.rs#L1), [`core/dr-types/src/settings.rs:1`](../core/dr-types/src/settings.rs#L1), [`ui/dr-ui/src/collections_ui.rs:3174`](../ui/dr-ui/src/collections_ui.rs#L3174), [`ui/dr-ui/src/collections_ui.rs:621`](../ui/dr-ui/src/collections_ui.rs#L621), [`ui/dr-ui/src/collections_ui.rs:683`](../ui/dr-ui/src/collections_ui.rs#L683), [`ui/dr-ui/src/lib.rs:1807`](../ui/dr-ui/src/lib.rs#L1807), [`ui/dr-ui/src/lib.rs:2698`](../ui/dr-ui/src/lib.rs#L2698), [`ui/dr-ui/src/library.rs:1449`](../ui/dr-ui/src/library.rs#L1449), [`ui/dr-ui/src/library.rs:1472`](../ui/dr-ui/src/library.rs#L1472), [`ui/dr-ui/src/library.rs:1747`](../ui/dr-ui/src/library.rs#L1747), [`ui/dr-ui/src/library_ui.rs:1065`](../ui/dr-ui/src/library_ui.rs#L1065), [`ui/dr-ui/src/library_ui.rs:1138`](../ui/dr-ui/src/library_ui.rs#L1138), [`ui/dr-ui/src/library_ui.rs:1239`](../ui/dr-ui/src/library_ui.rs#L1239), [`ui/dr-ui/src/library_ui.rs:1294`](../ui/dr-ui/src/library_ui.rs#L1294), [`ui/dr-ui/src/library_ui.rs:1429`](../ui/dr-ui/src/library_ui.rs#L1429), [`ui/dr-ui/src/library_ui.rs:1547`](../ui/dr-ui/src/library_ui.rs#L1547), [`ui/dr-ui/src/library_ui.rs:2074`](../ui/dr-ui/src/library_ui.rs#L2074), [`ui/dr-ui/src/library_ui.rs:273`](../ui/dr-ui/src/library_ui.rs#L273), [`ui/dr-ui/src/library_ui.rs:284`](../ui/dr-ui/src/library_ui.rs#L284), [`ui/dr-ui/src/library_ui.rs:292`](../ui/dr-ui/src/library_ui.rs#L292), [`ui/dr-ui/src/library_ui.rs:304`](../ui/dr-ui/src/library_ui.rs#L304), [`ui/dr-ui/src/library_ui.rs:313`](../ui/dr-ui/src/library_ui.rs#L313), [`ui/dr-ui/src/library_ui.rs:405`](../ui/dr-ui/src/library_ui.rs#L405), [`ui/dr-ui/src/library_ui.rs:415`](../ui/dr-ui/src/library_ui.rs#L415), [`ui/dr-ui/src/library_ui.rs:457`](../ui/dr-ui/src/library_ui.rs#L457), [`ui/dr-ui/src/library_ui.rs:520`](../ui/dr-ui/src/library_ui.rs#L520), [`ui/dr-ui/src/library_ui.rs:5318`](../ui/dr-ui/src/library_ui.rs#L5318), [`ui/dr-ui/src/library_ui.rs:5336`](../ui/dr-ui/src/library_ui.rs#L5336), [`ui/dr-ui/src/library_ui.rs:5348`](../ui/dr-ui/src/library_ui.rs#L5348), [`ui/dr-ui/src/library_ui.rs:551`](../ui/dr-ui/src/library_ui.rs#L551), [`ui/dr-ui/src/library_ui.rs:563`](../ui/dr-ui/src/library_ui.rs#L563), [`ui/dr-ui/src/settings_store.rs:1`](../ui/dr-ui/src/settings_store.rs#L1), [`ui/dr-ui/src/settings_ui.rs:1`](../ui/dr-ui/src/settings_ui.rs#L1), [`ui/dr-ui/ui/app.slint:2335`](../ui/dr-ui/ui/app.slint#L2335), [`ui/dr-ui/ui/app.slint:434`](../ui/dr-ui/ui/app.slint#L434), [`ui/dr-ui/ui/collections.slint:249`](../ui/dr-ui/ui/collections.slint#L249), [`ui/dr-ui/ui/collections.slint:369`](../ui/dr-ui/ui/collections.slint#L369), [`ui/dr-ui/ui/collections.slint:52`](../ui/dr-ui/ui/collections.slint#L52), [`ui/dr-ui/ui/collections.slint:682`](../ui/dr-ui/ui/collections.slint#L682), [`ui/dr-ui/ui/collections.slint:84`](../ui/dr-ui/ui/collections.slint#L84), [`ui/dr-ui/ui/icons.slint:260`](../ui/dr-ui/ui/icons.slint#L260), [`ui/dr-ui/ui/library.slint:980`](../ui/dr-ui/ui/library.slint#L980) |
 | FR-NC-6b | [`ui/dr-ui/src/library_ui.rs:1294`](../ui/dr-ui/src/library_ui.rs#L1294) |
-| FR-NC-6c | [`core/dr-sync-folder/src/borrow.rs:1`](../core/dr-sync-folder/src/borrow.rs#L1), [`core/dr-sync-folder/src/lib.rs:197`](../core/dr-sync-folder/src/lib.rs#L197), [`core/dr-sync-folder/src/lib.rs:73`](../core/dr-sync-folder/src/lib.rs#L73), [`core/dr-sync-folder/src/lib.rs:770`](../core/dr-sync-folder/src/lib.rs#L770), [`core/dr-sync-folder/src/lib.rs:809`](../core/dr-sync-folder/src/lib.rs#L809), [`core/dr-sync-folder/src/vfs.rs:1`](../core/dr-sync-folder/src/vfs.rs#L1), [`core/dr-sync-nextcloud/src/desktop_client.rs:167`](../core/dr-sync-nextcloud/src/desktop_client.rs#L167), [`core/dr-sync-nextcloud/src/desktop_client.rs:30`](../core/dr-sync-nextcloud/src/desktop_client.rs#L30), [`core/dr-sync/src/capability.rs:41`](../core/dr-sync/src/capability.rs#L41), [`core/dr-sync/src/error.rs:39`](../core/dr-sync/src/error.rs#L39), [`core/dr-sync/src/lib.rs:158`](../core/dr-sync/src/lib.rs#L158), [`core/dr-sync/src/types.rs:101`](../core/dr-sync/src/types.rs#L101), [`core/dr-types/src/lib.rs:119`](../core/dr-types/src/lib.rs#L119), [`core/dr-types/src/lib.rs:201`](../core/dr-types/src/lib.rs#L201), [`ui/dr-ui/src/activity.rs:1`](../ui/dr-ui/src/activity.rs#L1), [`ui/dr-ui/src/collections_ui.rs:3174`](../ui/dr-ui/src/collections_ui.rs#L3174), [`ui/dr-ui/src/collections_ui.rs:621`](../ui/dr-ui/src/collections_ui.rs#L621), [`ui/dr-ui/src/collections_ui.rs:683`](../ui/dr-ui/src/collections_ui.rs#L683), [`ui/dr-ui/src/library.rs:948`](../ui/dr-ui/src/library.rs#L948), [`ui/dr-ui/src/library_ui.rs:1065`](../ui/dr-ui/src/library_ui.rs#L1065), [`ui/dr-ui/src/library_ui.rs:1138`](../ui/dr-ui/src/library_ui.rs#L1138), [`ui/dr-ui/src/remote.rs:40`](../ui/dr-ui/src/remote.rs#L40), [`ui/dr-ui/ui/collections.slint:249`](../ui/dr-ui/ui/collections.slint#L249), [`ui/dr-ui/ui/collections.slint:682`](../ui/dr-ui/ui/collections.slint#L682), [`ui/dr-ui/ui/icons.slint:260`](../ui/dr-ui/ui/icons.slint#L260) |
-| FR-NC-7 | [`core/dr-catalog/src/face_shard.rs:1`](../core/dr-catalog/src/face_shard.rs#L1), [`core/dr-sync-nextcloud/src/lib.rs:104`](../core/dr-sync-nextcloud/src/lib.rs#L104), [`ui/dr-ui/src/derived_sync.rs:1`](../ui/dr-ui/src/derived_sync.rs#L1), [`ui/dr-ui/src/library.rs:3200`](../ui/dr-ui/src/library.rs#L3200), [`ui/dr-ui/src/library_ui.rs:3610`](../ui/dr-ui/src/library_ui.rs#L3610), [`ui/dr-ui/ui/settings.slint:372`](../ui/dr-ui/ui/settings.slint#L372) |
+| FR-NC-6c | [`core/dr-catalog/src/cache.rs:225`](../core/dr-catalog/src/cache.rs#L225), [`core/dr-sync-folder/src/borrow.rs:1`](../core/dr-sync-folder/src/borrow.rs#L1), [`core/dr-sync-folder/src/lib.rs:197`](../core/dr-sync-folder/src/lib.rs#L197), [`core/dr-sync-folder/src/lib.rs:73`](../core/dr-sync-folder/src/lib.rs#L73), [`core/dr-sync-folder/src/lib.rs:770`](../core/dr-sync-folder/src/lib.rs#L770), [`core/dr-sync-folder/src/lib.rs:809`](../core/dr-sync-folder/src/lib.rs#L809), [`core/dr-sync-folder/src/vfs.rs:1`](../core/dr-sync-folder/src/vfs.rs#L1), [`core/dr-sync-nextcloud/src/desktop_client.rs:167`](../core/dr-sync-nextcloud/src/desktop_client.rs#L167), [`core/dr-sync-nextcloud/src/desktop_client.rs:30`](../core/dr-sync-nextcloud/src/desktop_client.rs#L30), [`core/dr-sync/src/capability.rs:41`](../core/dr-sync/src/capability.rs#L41), [`core/dr-sync/src/error.rs:39`](../core/dr-sync/src/error.rs#L39), [`core/dr-sync/src/lib.rs:158`](../core/dr-sync/src/lib.rs#L158), [`core/dr-sync/src/types.rs:101`](../core/dr-sync/src/types.rs#L101), [`core/dr-types/src/lib.rs:119`](../core/dr-types/src/lib.rs#L119), [`core/dr-types/src/lib.rs:201`](../core/dr-types/src/lib.rs#L201), [`ui/dr-ui/src/activity.rs:1`](../ui/dr-ui/src/activity.rs#L1), [`ui/dr-ui/src/collections_ui.rs:3174`](../ui/dr-ui/src/collections_ui.rs#L3174), [`ui/dr-ui/src/collections_ui.rs:621`](../ui/dr-ui/src/collections_ui.rs#L621), [`ui/dr-ui/src/collections_ui.rs:683`](../ui/dr-ui/src/collections_ui.rs#L683), [`ui/dr-ui/src/library.rs:1569`](../ui/dr-ui/src/library.rs#L1569), [`ui/dr-ui/src/library.rs:1659`](../ui/dr-ui/src/library.rs#L1659), [`ui/dr-ui/src/library.rs:3138`](../ui/dr-ui/src/library.rs#L3138), [`ui/dr-ui/src/library.rs:3476`](../ui/dr-ui/src/library.rs#L3476), [`ui/dr-ui/src/library.rs:948`](../ui/dr-ui/src/library.rs#L948), [`ui/dr-ui/src/library_ui.rs:1065`](../ui/dr-ui/src/library_ui.rs#L1065), [`ui/dr-ui/src/library_ui.rs:1138`](../ui/dr-ui/src/library_ui.rs#L1138), [`ui/dr-ui/src/library_ui.rs:1337`](../ui/dr-ui/src/library_ui.rs#L1337), [`ui/dr-ui/src/remote.rs:40`](../ui/dr-ui/src/remote.rs#L40), [`ui/dr-ui/ui/collections.slint:249`](../ui/dr-ui/ui/collections.slint#L249), [`ui/dr-ui/ui/collections.slint:682`](../ui/dr-ui/ui/collections.slint#L682), [`ui/dr-ui/ui/icons.slint:260`](../ui/dr-ui/ui/icons.slint#L260) |
+| FR-NC-7 | [`core/dr-catalog/src/face_shard.rs:1`](../core/dr-catalog/src/face_shard.rs#L1), [`core/dr-sync-nextcloud/src/lib.rs:104`](../core/dr-sync-nextcloud/src/lib.rs#L104), [`ui/dr-ui/src/derived_sync.rs:1`](../ui/dr-ui/src/derived_sync.rs#L1), [`ui/dr-ui/src/library.rs:3356`](../ui/dr-ui/src/library.rs#L3356), [`ui/dr-ui/src/library_ui.rs:3627`](../ui/dr-ui/src/library_ui.rs#L3627), [`ui/dr-ui/ui/settings.slint:372`](../ui/dr-ui/ui/settings.slint#L372) |
 | FR-NC-7a | [`core/dr-ingest/src/layout.rs:1`](../core/dr-ingest/src/layout.rs#L1), [`core/dr-sync/src/upload.rs:1`](../core/dr-sync/src/upload.rs#L1), [`core/dr-sync/src/upload.rs:40`](../core/dr-sync/src/upload.rs#L40), [`core/dr-types/src/settings.rs:116`](../core/dr-types/src/settings.rs#L116), [`ui/dr-ui/src/import.rs:1`](../ui/dr-ui/src/import.rs#L1), [`ui/dr-ui/src/import.rs:97`](../ui/dr-ui/src/import.rs#L97), [`ui/dr-ui/src/import_ui.rs:1`](../ui/dr-ui/src/import_ui.rs#L1), [`ui/dr-ui/src/lib.rs:1123`](../ui/dr-ui/src/lib.rs#L1123), [`ui/dr-ui/ui/import.slint:5`](../ui/dr-ui/ui/import.slint#L5) |
 | FR-NC-7b | [`core/dr-ingest/src/lib.rs:733`](../core/dr-ingest/src/lib.rs#L733), [`core/dr-sync/src/upload.rs:1`](../core/dr-sync/src/upload.rs#L1), [`ui/dr-ui/src/import.rs:122`](../ui/dr-ui/src/import.rs#L122), [`ui/dr-ui/src/import.rs:336`](../ui/dr-ui/src/import.rs#L336), [`ui/dr-ui/src/import.rs:584`](../ui/dr-ui/src/import.rs#L584), [`ui/dr-ui/src/import.rs:97`](../ui/dr-ui/src/import.rs#L97), [`ui/dr-ui/src/import_ui.rs:1`](../ui/dr-ui/src/import_ui.rs#L1), [`ui/dr-ui/src/lib.rs:1123`](../ui/dr-ui/src/lib.rs#L1123) |
 | FR-NC-8 | [`core/dr-pipeline/src/sidecar.rs:118`](../core/dr-pipeline/src/sidecar.rs#L118), [`core/dr-pipeline/src/sidecar.rs:92`](../core/dr-pipeline/src/sidecar.rs#L92), [`ui/dr-ui/src/lib.rs:1777`](../ui/dr-ui/src/lib.rs#L1777), [`ui/dr-ui/src/library.rs:459`](../ui/dr-ui/src/library.rs#L459), [`ui/dr-ui/src/library_ui.rs:472`](../ui/dr-ui/src/library_ui.rs#L472) |
@@ -113,18 +113,18 @@ _None._
 | FR-RAW-4 | [`core/dr-decode/src/error.rs:1`](../core/dr-decode/src/error.rs#L1), [`ui/dr-ui/src/lib.rs:204`](../ui/dr-ui/src/lib.rs#L204) |
 | FR-RAW-5 | [`core/dr-decode/src/lib.rs:167`](../core/dr-decode/src/lib.rs#L167), [`core/dr-gpu/src/demosaic.rs:34`](../core/dr-gpu/src/demosaic.rs#L34), [`core/dr-gpu/src/demosaic.rs:602`](../core/dr-gpu/src/demosaic.rs#L602), [`core/dr-gpu/src/demosaic.rs:681`](../core/dr-gpu/src/demosaic.rs#L681), [`core/dr-gpu/src/demosaic.rs:805`](../core/dr-gpu/src/demosaic.rs#L805) |
 | FR-UI-1 | [`ui/dr-ui/src/lib.rs:2780`](../ui/dr-ui/src/lib.rs#L2780), [`ui/dr-ui/src/lib.rs:80`](../ui/dr-ui/src/lib.rs#L80), [`ui/dr-ui/src/masks_ui.rs:816`](../ui/dr-ui/src/masks_ui.rs#L816), [`ui/dr-ui/ui/identity.slint:165`](../ui/dr-ui/ui/identity.slint#L165), [`ui/dr-ui/ui/library.slint:1046`](../ui/dr-ui/ui/library.slint#L1046) |
-| FR-UI-2 | [`ui/dr-ui/src/collections_ui.rs:1005`](../ui/dr-ui/src/collections_ui.rs#L1005), [`ui/dr-ui/src/collections_ui.rs:118`](../ui/dr-ui/src/collections_ui.rs#L118), [`ui/dr-ui/src/collections_ui.rs:1488`](../ui/dr-ui/src/collections_ui.rs#L1488), [`ui/dr-ui/src/collections_ui.rs:1502`](../ui/dr-ui/src/collections_ui.rs#L1502), [`ui/dr-ui/src/collections_ui.rs:1548`](../ui/dr-ui/src/collections_ui.rs#L1548), [`ui/dr-ui/src/collections_ui.rs:159`](../ui/dr-ui/src/collections_ui.rs#L159), [`ui/dr-ui/src/collections_ui.rs:1646`](../ui/dr-ui/src/collections_ui.rs#L1646), [`ui/dr-ui/src/collections_ui.rs:485`](../ui/dr-ui/src/collections_ui.rs#L485), [`ui/dr-ui/src/collections_ui.rs:514`](../ui/dr-ui/src/collections_ui.rs#L514), [`ui/dr-ui/src/collections_ui.rs:995`](../ui/dr-ui/src/collections_ui.rs#L995), [`ui/dr-ui/src/lib.rs:80`](../ui/dr-ui/src/lib.rs#L80), [`ui/dr-ui/src/lib.rs:87`](../ui/dr-ui/src/lib.rs#L87), [`ui/dr-ui/src/library_ui.rs:292`](../ui/dr-ui/src/library_ui.rs#L292), [`ui/dr-ui/src/library_ui.rs:5186`](../ui/dr-ui/src/library_ui.rs#L5186), [`ui/dr-ui/src/library_ui.rs:5331`](../ui/dr-ui/src/library_ui.rs#L5331), [`ui/dr-ui/src/library_ui.rs:6462`](../ui/dr-ui/src/library_ui.rs#L6462), [`ui/dr-ui/ui/adjust.slint:506`](../ui/dr-ui/ui/adjust.slint#L506), [`ui/dr-ui/ui/adjust.slint:641`](../ui/dr-ui/ui/adjust.slint#L641), [`ui/dr-ui/ui/adjust.slint:962`](../ui/dr-ui/ui/adjust.slint#L962), [`ui/dr-ui/ui/app.slint:1950`](../ui/dr-ui/ui/app.slint#L1950), [`ui/dr-ui/ui/app.slint:464`](../ui/dr-ui/ui/app.slint#L464), [`ui/dr-ui/ui/app.slint:471`](../ui/dr-ui/ui/app.slint#L471), [`ui/dr-ui/ui/app.slint:54`](../ui/dr-ui/ui/app.slint#L54), [`ui/dr-ui/ui/app.slint:764`](../ui/dr-ui/ui/app.slint#L764), [`ui/dr-ui/ui/develop.slint:223`](../ui/dr-ui/ui/develop.slint#L223), [`ui/dr-ui/ui/histogram.slint:127`](../ui/dr-ui/ui/histogram.slint#L127), [`ui/dr-ui/ui/history.slint:118`](../ui/dr-ui/ui/history.slint#L118), [`ui/dr-ui/ui/library.slint:1202`](../ui/dr-ui/ui/library.slint#L1202), [`ui/dr-ui/ui/library.slint:1209`](../ui/dr-ui/ui/library.slint#L1209), [`ui/dr-ui/ui/library.slint:1215`](../ui/dr-ui/ui/library.slint#L1215), [`ui/dr-ui/ui/library.slint:2314`](../ui/dr-ui/ui/library.slint#L2314), [`ui/dr-ui/ui/library.slint:829`](../ui/dr-ui/ui/library.slint#L829), [`ui/dr-ui/ui/library.slint:879`](../ui/dr-ui/ui/library.slint#L879), [`ui/dr-ui/ui/masks.slint:304`](../ui/dr-ui/ui/masks.slint#L304), [`ui/dr-ui/ui/settings.slint:106`](../ui/dr-ui/ui/settings.slint#L106), [`ui/dr-ui/ui/spots.slint:88`](../ui/dr-ui/ui/spots.slint#L88) |
-| FR-UI-3 | [`ui/dr-ui/src/develop.rs:2073`](../ui/dr-ui/src/develop.rs#L2073), [`ui/dr-ui/src/develop.rs:2182`](../ui/dr-ui/src/develop.rs#L2182), [`ui/dr-ui/src/library_ui.rs:4370`](../ui/dr-ui/src/library_ui.rs#L4370), [`ui/dr-ui/src/masks_ui.rs:218`](../ui/dr-ui/src/masks_ui.rs#L218), [`ui/dr-ui/src/masks_ui.rs:908`](../ui/dr-ui/src/masks_ui.rs#L908), [`ui/dr-ui/src/masks_ui.rs:930`](../ui/dr-ui/src/masks_ui.rs#L930), [`ui/dr-ui/src/spots_ui.rs:19`](../ui/dr-ui/src/spots_ui.rs#L19), [`ui/dr-ui/ui/app.slint:1766`](../ui/dr-ui/ui/app.slint#L1766), [`ui/dr-ui/ui/collections.slint:4`](../ui/dr-ui/ui/collections.slint#L4), [`ui/dr-ui/ui/collections.slint:682`](../ui/dr-ui/ui/collections.slint#L682), [`ui/dr-ui/ui/masks.slint:490`](../ui/dr-ui/ui/masks.slint#L490) |
-| FR-UI-4 | [`ui/dr-ui/src/collections_ui.rs:1005`](../ui/dr-ui/src/collections_ui.rs#L1005), [`ui/dr-ui/src/collections_ui.rs:118`](../ui/dr-ui/src/collections_ui.rs#L118), [`ui/dr-ui/src/collections_ui.rs:131`](../ui/dr-ui/src/collections_ui.rs#L131), [`ui/dr-ui/src/collections_ui.rs:1488`](../ui/dr-ui/src/collections_ui.rs#L1488), [`ui/dr-ui/src/collections_ui.rs:1502`](../ui/dr-ui/src/collections_ui.rs#L1502), [`ui/dr-ui/src/collections_ui.rs:1548`](../ui/dr-ui/src/collections_ui.rs#L1548), [`ui/dr-ui/src/collections_ui.rs:159`](../ui/dr-ui/src/collections_ui.rs#L159), [`ui/dr-ui/src/collections_ui.rs:1646`](../ui/dr-ui/src/collections_ui.rs#L1646), [`ui/dr-ui/src/collections_ui.rs:1673`](../ui/dr-ui/src/collections_ui.rs#L1673), [`ui/dr-ui/src/collections_ui.rs:485`](../ui/dr-ui/src/collections_ui.rs#L485), [`ui/dr-ui/src/collections_ui.rs:514`](../ui/dr-ui/src/collections_ui.rs#L514), [`ui/dr-ui/src/collections_ui.rs:582`](../ui/dr-ui/src/collections_ui.rs#L582), [`ui/dr-ui/src/collections_ui.rs:995`](../ui/dr-ui/src/collections_ui.rs#L995), [`ui/dr-ui/src/library_ui.rs:4370`](../ui/dr-ui/src/library_ui.rs#L4370), [`ui/dr-ui/src/library_ui.rs:4415`](../ui/dr-ui/src/library_ui.rs#L4415), [`ui/dr-ui/src/library_ui.rs:4518`](../ui/dr-ui/src/library_ui.rs#L4518), [`ui/dr-ui/src/library_ui.rs:4546`](../ui/dr-ui/src/library_ui.rs#L4546), [`ui/dr-ui/src/library_ui.rs:5319`](../ui/dr-ui/src/library_ui.rs#L5319), [`ui/dr-ui/src/library_ui.rs:5331`](../ui/dr-ui/src/library_ui.rs#L5331), [`ui/dr-ui/ui/app.slint:1608`](../ui/dr-ui/ui/app.slint#L1608), [`ui/dr-ui/ui/app.slint:440`](../ui/dr-ui/ui/app.slint#L440), [`ui/dr-ui/ui/app.slint:471`](../ui/dr-ui/ui/app.slint#L471), [`ui/dr-ui/ui/library.slint:1202`](../ui/dr-ui/ui/library.slint#L1202), [`ui/dr-ui/ui/library.slint:1209`](../ui/dr-ui/ui/library.slint#L1209), [`ui/dr-ui/ui/library.slint:1215`](../ui/dr-ui/ui/library.slint#L1215), [`ui/dr-ui/ui/library.slint:2314`](../ui/dr-ui/ui/library.slint#L2314), [`ui/dr-ui/ui/library.slint:829`](../ui/dr-ui/ui/library.slint#L829), [`ui/dr-ui/ui/library.slint:879`](../ui/dr-ui/ui/library.slint#L879), [`ui/dr-ui/ui/library.slint:898`](../ui/dr-ui/ui/library.slint#L898) |
+| FR-UI-2 | [`ui/dr-ui/src/collections_ui.rs:1005`](../ui/dr-ui/src/collections_ui.rs#L1005), [`ui/dr-ui/src/collections_ui.rs:118`](../ui/dr-ui/src/collections_ui.rs#L118), [`ui/dr-ui/src/collections_ui.rs:1488`](../ui/dr-ui/src/collections_ui.rs#L1488), [`ui/dr-ui/src/collections_ui.rs:1502`](../ui/dr-ui/src/collections_ui.rs#L1502), [`ui/dr-ui/src/collections_ui.rs:1548`](../ui/dr-ui/src/collections_ui.rs#L1548), [`ui/dr-ui/src/collections_ui.rs:159`](../ui/dr-ui/src/collections_ui.rs#L159), [`ui/dr-ui/src/collections_ui.rs:1646`](../ui/dr-ui/src/collections_ui.rs#L1646), [`ui/dr-ui/src/collections_ui.rs:485`](../ui/dr-ui/src/collections_ui.rs#L485), [`ui/dr-ui/src/collections_ui.rs:514`](../ui/dr-ui/src/collections_ui.rs#L514), [`ui/dr-ui/src/collections_ui.rs:995`](../ui/dr-ui/src/collections_ui.rs#L995), [`ui/dr-ui/src/lib.rs:80`](../ui/dr-ui/src/lib.rs#L80), [`ui/dr-ui/src/lib.rs:87`](../ui/dr-ui/src/lib.rs#L87), [`ui/dr-ui/src/library_ui.rs:292`](../ui/dr-ui/src/library_ui.rs#L292), [`ui/dr-ui/src/library_ui.rs:5203`](../ui/dr-ui/src/library_ui.rs#L5203), [`ui/dr-ui/src/library_ui.rs:5348`](../ui/dr-ui/src/library_ui.rs#L5348), [`ui/dr-ui/src/library_ui.rs:6479`](../ui/dr-ui/src/library_ui.rs#L6479), [`ui/dr-ui/ui/adjust.slint:506`](../ui/dr-ui/ui/adjust.slint#L506), [`ui/dr-ui/ui/adjust.slint:641`](../ui/dr-ui/ui/adjust.slint#L641), [`ui/dr-ui/ui/adjust.slint:962`](../ui/dr-ui/ui/adjust.slint#L962), [`ui/dr-ui/ui/app.slint:1950`](../ui/dr-ui/ui/app.slint#L1950), [`ui/dr-ui/ui/app.slint:464`](../ui/dr-ui/ui/app.slint#L464), [`ui/dr-ui/ui/app.slint:471`](../ui/dr-ui/ui/app.slint#L471), [`ui/dr-ui/ui/app.slint:54`](../ui/dr-ui/ui/app.slint#L54), [`ui/dr-ui/ui/app.slint:764`](../ui/dr-ui/ui/app.slint#L764), [`ui/dr-ui/ui/develop.slint:223`](../ui/dr-ui/ui/develop.slint#L223), [`ui/dr-ui/ui/histogram.slint:127`](../ui/dr-ui/ui/histogram.slint#L127), [`ui/dr-ui/ui/history.slint:118`](../ui/dr-ui/ui/history.slint#L118), [`ui/dr-ui/ui/library.slint:1202`](../ui/dr-ui/ui/library.slint#L1202), [`ui/dr-ui/ui/library.slint:1209`](../ui/dr-ui/ui/library.slint#L1209), [`ui/dr-ui/ui/library.slint:1215`](../ui/dr-ui/ui/library.slint#L1215), [`ui/dr-ui/ui/library.slint:2314`](../ui/dr-ui/ui/library.slint#L2314), [`ui/dr-ui/ui/library.slint:829`](../ui/dr-ui/ui/library.slint#L829), [`ui/dr-ui/ui/library.slint:879`](../ui/dr-ui/ui/library.slint#L879), [`ui/dr-ui/ui/masks.slint:304`](../ui/dr-ui/ui/masks.slint#L304), [`ui/dr-ui/ui/settings.slint:106`](../ui/dr-ui/ui/settings.slint#L106), [`ui/dr-ui/ui/spots.slint:88`](../ui/dr-ui/ui/spots.slint#L88) |
+| FR-UI-3 | [`ui/dr-ui/src/develop.rs:2073`](../ui/dr-ui/src/develop.rs#L2073), [`ui/dr-ui/src/develop.rs:2182`](../ui/dr-ui/src/develop.rs#L2182), [`ui/dr-ui/src/library_ui.rs:4387`](../ui/dr-ui/src/library_ui.rs#L4387), [`ui/dr-ui/src/masks_ui.rs:218`](../ui/dr-ui/src/masks_ui.rs#L218), [`ui/dr-ui/src/masks_ui.rs:908`](../ui/dr-ui/src/masks_ui.rs#L908), [`ui/dr-ui/src/masks_ui.rs:930`](../ui/dr-ui/src/masks_ui.rs#L930), [`ui/dr-ui/src/spots_ui.rs:19`](../ui/dr-ui/src/spots_ui.rs#L19), [`ui/dr-ui/ui/app.slint:1766`](../ui/dr-ui/ui/app.slint#L1766), [`ui/dr-ui/ui/collections.slint:4`](../ui/dr-ui/ui/collections.slint#L4), [`ui/dr-ui/ui/collections.slint:682`](../ui/dr-ui/ui/collections.slint#L682), [`ui/dr-ui/ui/masks.slint:490`](../ui/dr-ui/ui/masks.slint#L490) |
+| FR-UI-4 | [`ui/dr-ui/src/collections_ui.rs:1005`](../ui/dr-ui/src/collections_ui.rs#L1005), [`ui/dr-ui/src/collections_ui.rs:118`](../ui/dr-ui/src/collections_ui.rs#L118), [`ui/dr-ui/src/collections_ui.rs:131`](../ui/dr-ui/src/collections_ui.rs#L131), [`ui/dr-ui/src/collections_ui.rs:1488`](../ui/dr-ui/src/collections_ui.rs#L1488), [`ui/dr-ui/src/collections_ui.rs:1502`](../ui/dr-ui/src/collections_ui.rs#L1502), [`ui/dr-ui/src/collections_ui.rs:1548`](../ui/dr-ui/src/collections_ui.rs#L1548), [`ui/dr-ui/src/collections_ui.rs:159`](../ui/dr-ui/src/collections_ui.rs#L159), [`ui/dr-ui/src/collections_ui.rs:1646`](../ui/dr-ui/src/collections_ui.rs#L1646), [`ui/dr-ui/src/collections_ui.rs:1673`](../ui/dr-ui/src/collections_ui.rs#L1673), [`ui/dr-ui/src/collections_ui.rs:485`](../ui/dr-ui/src/collections_ui.rs#L485), [`ui/dr-ui/src/collections_ui.rs:514`](../ui/dr-ui/src/collections_ui.rs#L514), [`ui/dr-ui/src/collections_ui.rs:582`](../ui/dr-ui/src/collections_ui.rs#L582), [`ui/dr-ui/src/collections_ui.rs:995`](../ui/dr-ui/src/collections_ui.rs#L995), [`ui/dr-ui/src/library_ui.rs:4387`](../ui/dr-ui/src/library_ui.rs#L4387), [`ui/dr-ui/src/library_ui.rs:4432`](../ui/dr-ui/src/library_ui.rs#L4432), [`ui/dr-ui/src/library_ui.rs:4535`](../ui/dr-ui/src/library_ui.rs#L4535), [`ui/dr-ui/src/library_ui.rs:4563`](../ui/dr-ui/src/library_ui.rs#L4563), [`ui/dr-ui/src/library_ui.rs:5336`](../ui/dr-ui/src/library_ui.rs#L5336), [`ui/dr-ui/src/library_ui.rs:5348`](../ui/dr-ui/src/library_ui.rs#L5348), [`ui/dr-ui/ui/app.slint:1608`](../ui/dr-ui/ui/app.slint#L1608), [`ui/dr-ui/ui/app.slint:440`](../ui/dr-ui/ui/app.slint#L440), [`ui/dr-ui/ui/app.slint:471`](../ui/dr-ui/ui/app.slint#L471), [`ui/dr-ui/ui/library.slint:1202`](../ui/dr-ui/ui/library.slint#L1202), [`ui/dr-ui/ui/library.slint:1209`](../ui/dr-ui/ui/library.slint#L1209), [`ui/dr-ui/ui/library.slint:1215`](../ui/dr-ui/ui/library.slint#L1215), [`ui/dr-ui/ui/library.slint:2314`](../ui/dr-ui/ui/library.slint#L2314), [`ui/dr-ui/ui/library.slint:829`](../ui/dr-ui/ui/library.slint#L829), [`ui/dr-ui/ui/library.slint:879`](../ui/dr-ui/ui/library.slint#L879), [`ui/dr-ui/ui/library.slint:898`](../ui/dr-ui/ui/library.slint#L898) |
 | FR-UI-5 | [`ui/dr-ui/src/collections_ui.rs:1`](../ui/dr-ui/src/collections_ui.rs#L1), [`ui/dr-ui/src/lib.rs:2394`](../ui/dr-ui/src/lib.rs#L2394), [`ui/dr-ui/src/lib.rs:2819`](../ui/dr-ui/src/lib.rs#L2819), [`ui/dr-ui/src/lib.rs:3004`](../ui/dr-ui/src/lib.rs#L3004), [`ui/dr-ui/src/masks_ui.rs:863`](../ui/dr-ui/src/masks_ui.rs#L863), [`ui/dr-ui/ui/app.slint:89`](../ui/dr-ui/ui/app.slint#L89), [`ui/dr-ui/ui/collections.slint:4`](../ui/dr-ui/ui/collections.slint#L4) |
 | FR-UI-7 | [`core/dr-pipeline/src/descriptor.rs:177`](../core/dr-pipeline/src/descriptor.rs#L177), [`core/dr-pipeline/src/framing.rs:262`](../core/dr-pipeline/src/framing.rs#L262) |
-| NFR-ARCH-2 | [`core/dr-catalog/src/jobs.rs:1`](../core/dr-catalog/src/jobs.rs#L1), [`ui/dr-ui/src/faces.rs:1`](../ui/dr-ui/src/faces.rs#L1), [`ui/dr-ui/src/library.rs:2835`](../ui/dr-ui/src/library.rs#L2835) |
+| NFR-ARCH-2 | [`core/dr-catalog/src/jobs.rs:1`](../core/dr-catalog/src/jobs.rs#L1), [`ui/dr-ui/src/faces.rs:1`](../ui/dr-ui/src/faces.rs#L1), [`ui/dr-ui/src/library.rs:2953`](../ui/dr-ui/src/library.rs#L2953) |
 | NFR-ARCH-3 | [`ui/dr-ui/src/export.rs:1553`](../ui/dr-ui/src/export.rs#L1553), [`ui/dr-ui/src/export.rs:1579`](../ui/dr-ui/src/export.rs#L1579), [`ui/dr-ui/src/export.rs:409`](../ui/dr-ui/src/export.rs#L409), [`ui/dr-ui/src/export.rs:435`](../ui/dr-ui/src/export.rs#L435), [`ui/dr-ui/src/lib.rs:2112`](../ui/dr-ui/src/lib.rs#L2112), [`ui/dr-ui/ui/app.slint:940`](../ui/dr-ui/ui/app.slint#L940), [`ui/dr-ui/ui/library.slint:934`](../ui/dr-ui/ui/library.slint#L934) |
 | NFR-ARCH-4 | [`core/dr-catalog/src/error.rs:1`](../core/dr-catalog/src/error.rs#L1), [`core/dr-export/src/error.rs:1`](../core/dr-export/src/error.rs#L1), [`core/dr-thumbs/src/error.rs:1`](../core/dr-thumbs/src/error.rs#L1), [`platform/dr-plat/src/storage.rs:148`](../platform/dr-plat/src/storage.rs#L148), [`ui/dr-ui/src/export.rs:499`](../ui/dr-ui/src/export.rs#L499) |
 | NFR-OPS-1 | [`tools/traceability/src/lib.rs:266`](../tools/traceability/src/lib.rs#L266) |
 | NFR-P1 | [`core/dr-catalog/src/lib.rs:1`](../core/dr-catalog/src/lib.rs#L1), [`core/dr-catalog/src/scan.rs:1`](../core/dr-catalog/src/scan.rs#L1), [`core/dr-catalog/src/walk.rs:162`](../core/dr-catalog/src/walk.rs#L162), [`core/dr-catalog/src/walk.rs:1`](../core/dr-catalog/src/walk.rs#L1), [`tools/traceability/src/lib.rs:479`](../tools/traceability/src/lib.rs#L479) |
 | NFR-P13 | [`core/dr-decode/src/preview.rs:121`](../core/dr-decode/src/preview.rs#L121) |
-| NFR-P5 | [`core/dr-catalog/src/schema.rs:318`](../core/dr-catalog/src/schema.rs#L318), [`ui/dr-ui/src/library.rs:3799`](../ui/dr-ui/src/library.rs#L3799), [`ui/dr-ui/src/library.rs:4591`](../ui/dr-ui/src/library.rs#L4591), [`ui/dr-ui/src/library_ui.rs:4055`](../ui/dr-ui/src/library_ui.rs#L4055), [`ui/dr-ui/src/library_ui.rs:64`](../ui/dr-ui/src/library_ui.rs#L64) |
+| NFR-P5 | [`core/dr-catalog/src/schema.rs:318`](../core/dr-catalog/src/schema.rs#L318), [`ui/dr-ui/src/library.rs:4003`](../ui/dr-ui/src/library.rs#L4003), [`ui/dr-ui/src/library.rs:4795`](../ui/dr-ui/src/library.rs#L4795), [`ui/dr-ui/src/library_ui.rs:4072`](../ui/dr-ui/src/library_ui.rs#L4072), [`ui/dr-ui/src/library_ui.rs:64`](../ui/dr-ui/src/library_ui.rs#L64) |
 | NFR-P9 | [`ui/dr-ui/src/collections_ui.rs:1`](../ui/dr-ui/src/collections_ui.rs#L1), [`ui/dr-ui/src/export.rs:942`](../ui/dr-ui/src/export.rs#L942), [`ui/dr-ui/src/library.rs:1`](../ui/dr-ui/src/library.rs#L1), [`ui/dr-ui/src/library_ui.rs:1`](../ui/dr-ui/src/library_ui.rs#L1), [`ui/dr-ui/src/trash.rs:1`](../ui/dr-ui/src/trash.rs#L1) |
 | NFR-PORT-1 | [`core/dr-catalog/src/walk.rs:1`](../core/dr-catalog/src/walk.rs#L1), [`core/dr-types/src/lib.rs:269`](../core/dr-types/src/lib.rs#L269), [`core/dr-types/src/lib.rs:302`](../core/dr-types/src/lib.rs#L302), [`platform/dr-plat/src/display.rs:1`](../platform/dr-plat/src/display.rs#L1), [`platform/dr-plat/src/storage.rs:1`](../platform/dr-plat/src/storage.rs#L1), [`platform/dr-plat/src/storage.rs:216`](../platform/dr-plat/src/storage.rs#L216), [`platform/dr-plat/src/storage.rs:287`](../platform/dr-plat/src/storage.rs#L287), [`platform/dr-plat/src/storage.rs:344`](../platform/dr-plat/src/storage.rs#L344), [`platform/dr-plat/src/volumes.rs:1`](../platform/dr-plat/src/volumes.rs#L1), [`platform/dr-plat/src/volumes.rs:62`](../platform/dr-plat/src/volumes.rs#L62) |
 | NFR-PORT-3 | [`platform/dr-plat/src/storage.rs:1`](../platform/dr-plat/src/storage.rs#L1) |
@@ -134,7 +134,7 @@ _None._
 | NFR-R7 | [`core/dr-gpu/src/error.rs:1`](../core/dr-gpu/src/error.rs#L1) |
 | NFR-R8 | [`core/dr-gpu/src/error.rs:1`](../core/dr-gpu/src/error.rs#L1) |
 | NFR-RES-1 | [`core/dr-pipeline/src/history.rs:86`](../core/dr-pipeline/src/history.rs#L86), [`ui/dr-ui/src/lib.rs:72`](../ui/dr-ui/src/lib.rs#L72) |
-| NFR-RES-4 | [`core/dr-catalog/src/cache.rs:1`](../core/dr-catalog/src/cache.rs#L1), [`core/dr-catalog/src/face_shard.rs:1`](../core/dr-catalog/src/face_shard.rs#L1), [`core/dr-catalog/src/schema.rs:613`](../core/dr-catalog/src/schema.rs#L613), [`core/dr-thumbs/src/codec.rs:1`](../core/dr-thumbs/src/codec.rs#L1), [`core/dr-thumbs/src/lib.rs:1`](../core/dr-thumbs/src/lib.rs#L1), [`core/dr-thumbs/src/lib.rs:376`](../core/dr-thumbs/src/lib.rs#L376), [`ui/dr-ui/src/library.rs:2730`](../ui/dr-ui/src/library.rs#L2730) |
+| NFR-RES-4 | [`core/dr-catalog/src/cache.rs:1`](../core/dr-catalog/src/cache.rs#L1), [`core/dr-catalog/src/face_shard.rs:1`](../core/dr-catalog/src/face_shard.rs#L1), [`core/dr-catalog/src/schema.rs:613`](../core/dr-catalog/src/schema.rs#L613), [`core/dr-thumbs/src/codec.rs:1`](../core/dr-thumbs/src/codec.rs#L1), [`core/dr-thumbs/src/lib.rs:1`](../core/dr-thumbs/src/lib.rs#L1), [`core/dr-thumbs/src/lib.rs:376`](../core/dr-thumbs/src/lib.rs#L376), [`ui/dr-ui/src/library.rs:2848`](../ui/dr-ui/src/library.rs#L2848) |
 | NFR-SEC-1 | [`core/dr-decode/src/error.rs:1`](../core/dr-decode/src/error.rs#L1) |
 | NFR-SEC-2 | [`core/dr-sync/src/account.rs:298`](../core/dr-sync/src/account.rs#L298), [`platform/dr-plat/src/secrets.rs:82`](../platform/dr-plat/src/secrets.rs#L82) |
 | NFR-SEC-5 | [`core/dr-catalog/src/faces.rs:1`](../core/dr-catalog/src/faces.rs#L1), [`core/dr-catalog/src/schema.rs:442`](../core/dr-catalog/src/schema.rs#L442), [`ui/dr-ui/src/faces.rs:1`](../ui/dr-ui/src/faces.rs#L1), [`ui/dr-ui/src/identity.rs:1`](../ui/dr-ui/src/identity.rs#L1), [`ui/dr-ui/src/identity_ui.rs:1`](../ui/dr-ui/src/identity_ui.rs#L1), [`ui/dr-ui/ui/identity.slint:1`](../ui/dr-ui/ui/identity.slint#L1) |
@@ -1565,6 +1565,48 @@ pub fn spawn_pin_fetch(
                };

                let id = RemoteId::Path(RemotePath::new(&source_ref));
+
+                // TRACES: FR-NC-6c
+                // On a placeholder library "pin" means *keep it downloaded*,
+                // not "make a second copy". The original materialises in the
+                // library folder itself, so copying it under `originals/`
+                // would hold every pinned photograph twice — and the copy
+                // would be the half the budget could evict while the real disk
+                // cost stayed. Only the bookkeeping is recorded, with no path,
+                // so nothing here can ever delete a file inside a synced tree
+                // (see `Cache::record_in_place`).
+                if backend.capabilities().materialisation.can_materialise() {
+                    match backend.materialise(&id).await {
+                        Ok(_) => {
+                            let bytes = size_of(&catalog, image).unwrap_or(0);
+                            if let Err(e) = store.record_in_place(
+                                catalog.connection(),
+                                image,
+                                bytes,
+                                true,
+                                now_secs(),
+                            ) {
+                                log::warn!("recording pinned {source_ref}: {e}");
+                                continue;
+                            }
+                            stored += 1;
+                            bytes_total += bytes;
+                            if tx.send(PinMessage::Stored { done: stored }).is_err() {
+                                return;
+                            }
+                        }
+                        Err(e) if e.indicates_offline() => {
+                            let _ = tx.send(PinMessage::Failed {
+                                message: e.to_string(),
+                                offline: true,
+                            });
+                            return;
+                        }
+                        Err(e) => log::warn!("pinning {source_ref}: {e}"),
+                    }
+                    continue;
+                }
+
                match backend.get(&id, None).await {
                    Ok(bytes) => {
                        // `pinned: true` — this is the population the budget
@@ -1614,6 +1656,82 @@ pub fn spawn_pin_fetch(
    rx
 }

+/// TRACES: FR-NC-6c
+/// Hand a set of photographs back to the sync client, freeing their disk.
+///
+/// The other half of pinning on a placeholder library. `Cache::release` drops
+/// the bookkeeping and — correctly — deletes nothing, because the rows it
+/// holds for a library like this name no file of ours (`record_in_place`).
+/// The bytes are in the library folder, and only the client may take them
+/// back.
+///
+/// **This is a dehydration, not a deletion, and the distinction is the whole
+/// safety of the feature.** Removing a materialised file inside a synced tree
+/// propagates to the server and deletes the photograph everywhere.
+///
+/// Best effort per image: a file the client refuses to release simply stays,
+/// which costs disk and loses nothing.
+pub fn spawn_dehydrate(
+    conn: Connection,
+    catalog_path: PathBuf,
+    images: Vec<dr_types::ImageId>,
+) -> Receiver<usize> {
+    let (tx, rx) = std::sync::mpsc::channel();
+
+    std::thread::spawn(move || {
+        let Ok(catalog) = Catalog::open(&catalog_path) else {
+            return;
+        };
+        let Ok(rt) = crate::net_runtime::build() else {
+            return;
+        };
+        rt.block_on(async {
+            let Ok(backend) = crate::remote::connect(&conn) else {
+                return;
+            };
+            // Nothing to do where content is not a thing that can be given
+            // back — a server library, or a plain folder.
+            if !backend.capabilities().materialisation.can_materialise() {
+                return;
+            }
+
+            let mut released = 0usize;
+            for image in images {
+                let Some(source_ref) = source_ref_of(&catalog, image) else {
+                    continue;
+                };
+                let id = RemoteId::Path(RemotePath::new(&source_ref));
+                match backend.dematerialise(&id).await {
+                    Ok(()) => released += 1,
+                    Err(e) => log::debug!("releasing {source_ref}: {e}"),
+                }
+            }
+            log::info!("released {released} photograph(s) back to the sync client");
+            let _ = tx.send(released);
+        });
+    });
+
+    rx
+}
+
+/// What an image occupies, as the catalog recorded it.
+///
+/// Zero where the scan could not tell — a placeholder reports no size, because
+/// a one-byte stub says nothing about what it stands for (ARCH §9.0a). A pin
+/// that cannot state its cost is better than one that states a wrong one.
+fn size_of(catalog: &Catalog, image: dr_types::ImageId) -> Option<u64> {
+    catalog
+        .connection()
+        .query_row(
+            "SELECT file_size FROM images WHERE id = ?1",
+            rusqlite::params![image.0 as i64],
+            |r| r.get::<_, Option<i64>>(0),
+        )
+        .ok()
+        .flatten()
+        .map(|v| v.max(0) as u64)
+}
+
 /// The remote path for a catalogued image.
 fn source_ref_of(catalog: &Catalog, image: dr_types::ImageId) -> Option<String> {
    catalog
@@ -3017,6 +3135,13 @@ pub fn spawn_face_sweep(
            let (mut done, mut images, mut found, mut failed) = (0usize, 0usize, 0usize, 0usize);
            let mut offline = false;

+            // TRACES: FR-NC-6c
+            // The same borrow the thumbnail sweep makes, and deliberately its
+            // own pool: the two passes run at different times, so sharing one
+            // would keep every file the earlier pass touched hydrated until
+            // the later one finished. Each gives its own back (ARCH §9.0a).
+            let pool = dr_sync_folder::BorrowPool::new();
+
            for chunk in wanted.chunks(SWEEP_CHUNK) {
                let lanes: Vec<Vec<&ThumbnailRequest>> = (0..SWEEP_LANES)
                    .map(|lane| chunk.iter().skip(lane).step_by(SWEEP_LANES).collect())
@@ -3026,6 +3151,7 @@ pub fn spawn_face_sweep(
                    let backend = &*backend;
                    let models = &models;
                    let options = &options;
+                    let pool = &pool;
                    async move {
                        let mut indexed: Vec<IndexedImage> = Vec::new();
                        let mut discard = Vec::new();
@@ -3034,6 +3160,23 @@ pub fn spawn_face_sweep(
                        let mut offline = false;
                        for req in lane {
                            attempted += 1;
+
+                            let _held =
+                                match pool.borrow(backend, &RemotePath::new(&req.path)).await {
+                                    Ok(h) => h,
+                                    Err(e) if e.indicates_offline() => {
+                                        log::info!("face sweep: {e}");
+                                        attempted -= 1;
+                                        offline = true;
+                                        break;
+                                    }
+                                    Err(e) => {
+                                        log::debug!("face sweep: {}: {e}", req.path);
+                                        failed += 1;
+                                        continue;
+                                    }
+                                };
+
                            match fetch_preview(backend, req, &mut discard).await {
                                PreviewOutcome::Ready(mut preview) => {
                                    // No await inside this borrow — see the
@@ -3138,8 +3281,13 @@ pub fn spawn_face_sweep(
                                {
                                    // Receiver dropped: the screen closed, or
                                    // the user pressed Stop. Everything written
-                                    // so far stays written.
+                                    // so far stays written — and everything
+                                    // borrowed is given back. A cancelled pass
+                                    // that kept the library hydrated would be
+                                    // the worst of both: the disk spent and
+                                    // the work abandoned.
                                    log::info!("face sweep: cancelled after {images} image(s)");
+                                    pool.release_all(&*backend).await;
                                    return;
                                }
                            }
@@ -3157,6 +3305,14 @@ pub fn spawn_face_sweep(
                }
            }

+            let returned = pool.release_all(&*backend).await;
+            if returned.released > 0 {
+                log::info!(
+                    "face sweep: released {} borrowed file(s)",
+                    returned.released
+                );
+            }
+
            log::info!(
                "face sweep: {found} face(s) across {images} image(s), {failed} failed{}",
                if offline { ", server went away" } else { "" }
@@ -3317,6 +3473,15 @@ pub fn spawn_thumbnail_sweep(
            let mut offline = false;
            let mut found = Vec::new();

+            // TRACES: FR-NC-6c
+            // On a placeholder library the bytes may not be here at all, and
+            // this is a pass the user asked for — so it may fetch them, which
+            // browsing may not (ARCH §9.0a). Every file is *borrowed*: what
+            // this pass downloads it gives back, and what the user already had
+            // it leaves alone. Against a server or a plain folder every borrow
+            // is a no-op, so there is one code path rather than two.
+            let pool = dr_sync_folder::BorrowPool::new();
+
            for chunk in wanted.chunks(SWEEP_CHUNK) {
                // Each lane owns a disjoint slice and its own output, so
                // nothing is shared and no lock is needed. The store is not
@@ -3327,6 +3492,7 @@ pub fn spawn_thumbnail_sweep(

                let results = futures_join_all(lanes.into_iter().map(|lane| {
                    let backend: &dyn RemoteBackend = &*backend;
+                    let pool = &pool;
                    async move {
                        let mut made: Vec<(u64, dr_thumbs::Thumbnail)> = Vec::new();
                        let mut found = Vec::new();
@@ -3339,6 +3505,27 @@ pub fn spawn_thumbnail_sweep(
                            // store on and is not a candidate.
                            let Some(file_id) = req.file_id else { continue };
                            attempted += 1;
+
+                            // Held for this image only. A failure to fetch is
+                            // this image's verdict, not the batch's: a client
+                            // that cannot reach the server reports it as
+                            // offline through the usual path below.
+                            let _held =
+                                match pool.borrow(backend, &RemotePath::new(&req.path)).await {
+                                    Ok(h) => h,
+                                    Err(e) if e.indicates_offline() => {
+                                        log::info!("thumbnail sweep: {e}");
+                                        attempted -= 1;
+                                        offline = true;
+                                        break;
+                                    }
+                                    Err(e) => {
+                                        log::debug!("thumbnail sweep: {}: {e}", req.path);
+                                        failed += 1;
+                                        continue;
+                                    }
+                                };
+
                            match fetch_preview(backend, req, &mut found).await {
                                PreviewOutcome::Ready(preview) => {
                                    match encode_preview(file_id, &preview) {
@@ -3389,6 +3576,10 @@ pub fn spawn_thumbnail_sweep(
                    .send(ThumbSweepMessage::Progress { done, stored })
                    .is_err()
                {
+                    // Cancelled. Hand back what was borrowed before leaving,
+                    // or a stopped pass costs the disk of everything it had
+                    // reached and delivers nothing for it.
+                    pool.release_all(&*backend).await;
                    return;
                }
                if offline {
@@ -3397,6 +3588,19 @@ pub fn spawn_thumbnail_sweep(
            }

            flush_sweep(&catalog, &mut found);
+
+            // Give back everything this pass fetched, before reporting done —
+            // a user watching the disk should see it return, and a pass that
+            // reported success while still holding the library would be
+            // lying about what it cost.
+            let returned = pool.release_all(&*backend).await;
+            if returned.released > 0 {
+                log::info!(
+                    "thumbnail sweep: released {} borrowed file(s)",
+                    returned.released
+                );
+            }
+
            log::info!("thumbnail sweep: {stored} stored, {failed} without a usable preview");
            let _ = tx.send(ThumbSweepMessage::Finished {
                stored,
@@ -1326,13 +1326,30 @@ fn release_collection_offline(
            }
        };
        let images = collection_images(catalog, &ids);
-        match cache.release(catalog.connection(), &images) {
+        let outcome = match cache.release(catalog.connection(), &images) {
            Ok(r) => r,
            Err(e) => {
                window.set_library_error(format!("removing local copies: {e}").into());
                return;
            }
+        };
+
+        // TRACES: FR-NC-6c
+        // On a placeholder library the bookkeeping above owns no files, so it
+        // freed nothing — the originals are materialised in the library folder
+        // and only the sync client may take them back. Asking it to is what
+        // makes unpinning actually return the disk, and it must be a
+        // dehydration rather than a delete: removing a file inside a synced
+        // tree propagates to the server (ARCH §9.0a).
+        //
+        // Fire and forget: it is per-file work over a socket, the user has
+        // already been told the pin is withdrawn, and a client that refuses
+        // leaves the content where it is at no cost but disk.
+        if let Some(conn) = ctl.session() {
+            let path = library::catalog_path(&conn.account);
+            std::mem::drop(library::spawn_dehydrate(conn, path, images));
        }
+        outcome
    };

    let (count, freed) = released;