Name the frame's category for the decision, not the maths

`Attribute::Geometry` becomes `Attribute::Compose`, and `film_sim` moves
from `[tone, colour]` to `[effect]`.

Two categories were doing the wrong job. "Geometry" describes what crop,
straighten and the quarter turns do to coordinates — but it describes lens
distortion correction exactly as well, and that is not a compositional
choice at all. Naming the attribute for the photographer's decision is what
separates it from `Optics`: one is what the lens did, the other is what
they chose. The maths the two have in common is not the thing worth
filing them under.

A film stock declared both `tone` and `colour`, so "Kodachrome" appeared in
the Light group beside exposure and again in Colour beside white balance —
two places, neither of which is where anyone looks for it. It is neither:
`Effect` is defined in this same file as "applied rather than corrected — a
look, not a fix", which is what a stock is. That it moves tone and colour
is true of every look, and is not what the attribute is for.

`from_name` still accepts "geometry" on the way in. That string is
persisted in `develop.copy_attributes`, and an entry it fails to parse is
not an error — `presets::scope_for` logs it and drops it — so without the
alias an existing settings file would have quietly narrowed what a paste
carries. `name` writes the current spelling, so the file migrates itself
the first time it is saved.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

ui/dr-ui/src/develop.rs

@@ -1021,15 +1021,15 @@ impl DevelopSession {
     /// (FR-DEV-3a). An attribute nothing carries is left out rather than
     /// offered as a tab that opens onto nothing.
     ///
-    /// Geometry is excluded: its one operation prefers an on-canvas widget and
-    /// is skipped by the row builder, so a Geometry tab would be empty of rows
-    /// while `GeometryPanel` holds the real controls.
+    /// Compose is excluded: its one operation prefers an on-canvas widget and
+    /// is skipped by the row builder, so a Compose tab would be empty of rows
+    /// while `ComposePanel` holds the real controls.
     pub fn tabs(&self) -> Vec<(dr_pipeline::Attribute, String)> {
         use dr_pipeline::Attribute;
         let caps = self.scoped_capabilities();
         Attribute::ALL
             .into_iter()
-            .filter(|a| *a != Attribute::Geometry)
+            .filter(|a| *a != Attribute::Compose)
             .filter(|a| {
                 caps.iter().any(|c| {
                     c.attributes.contains(a)
@@ -1171,7 +1171,7 @@ pub(crate) fn supported(widget: WidgetKind) -> bool {
         // Drawn in the panel.
         WidgetKind::ToneCurve => true,
         // Hosted on the canvas: the overlay is drawn over the photograph and
-        // the panel contributes `GeometryPanel`, the affordance that turns it
+        // the panel contributes `ComposePanel`, the affordance that turns it
         // on.
         WidgetKind::CropOverlay => true,
         // Not implemented. Listed rather than caught by a wildcard so the next
@@ -1254,7 +1254,7 @@ pub(crate) fn rows_filtered(
                 // terms, with nothing named.
                 //
                 // Skipped rather than rendered as an affordance row, because
-                // the affordance is `GeometryPanel` — a bespoke control for a
+                // the affordance is `ComposePanel` — a bespoke control for a
                 // known stage, which is a thing the interface is entitled to
                 // build (ARCH §4.3a draws the line at the *generated* panel
                 // naming stages, not at the interface having hand-made
@@ -5748,7 +5748,7 @@ mod tests {
 
     #[test]
     fn framing_is_not_generated_as_sliders() {
-        // `GeometryPanel` presents crop, rotation, flips and straightening as
+        // `ComposePanel` presents crop, rotation, flips and straightening as
         // the gestures they are. If the generic path emitted them too the
         // sidebar would carry both — including four "Crop Left/Top/Width/
         // Height" sliders no one can compose a photograph with.