chore(format): run prettier over src/ and scripts/

Formatting was configured but never enforced: `bun run format:check`
reported 199 unformatted files and ran in no workflow and in no git hook,
so .prettierrc (printWidth 100, trailing commas) described an intention
rather than the tree.

This is the one-time sweep that makes the check gateable. Whitespace and
token-reflow only -- no behavioural change: `bun run check` reports 0
errors and all 1053 frontend tests pass before and after.

Kept out of every other commit on purpose. A 199-file diff mixed with
real changes is unreviewable, and the next commit turns format:check
into a hard CI gate so this cannot silently accumulate again.

src/lib/components/library/DownloadButtonCore.svelte

@@ -22,7 +22,14 @@
     className?: string;
   }
 
-  let { state, size = "md", title, onClick, isProcessing = false, className = "" }: Props = $props();
+  let {
+    state,
+    size = "md",
+    title,
+    onClick,
+    isProcessing = false,
+    className = "",
+  }: Props = $props();
 
   const sizeMap = {
     sm: { icon: "w-4 h-4", ring: "w-8 h-8" },
@@ -46,13 +53,21 @@
   onclick={onClick}
   disabled={isProcessing || state.status === "downloading"}
   aria-label={title}
-  title={title}
+  {title}
   class={`relative transition-colors disabled:opacity-50 disabled:cursor-not-allowed ${colorMap[state.status]} ${className}`}
 >
   {#if state.status === "downloading"}
     <!-- Progress Ring -->
     <svg class="{sizeMap[size].ring} -rotate-90" viewBox="0 0 36 36">
-      <circle cx="18" cy="18" r="15" fill="none" stroke="currentColor" stroke-width="2" class="opacity-20" />
+      <circle
+        cx="18"
+        cy="18"
+        r="15"
+        fill="none"
+        stroke="currentColor"
+        stroke-width="2"
+        class="opacity-20"
+      />
       <circle
         cx="18"
         cy="18"
@@ -67,7 +82,13 @@
         style="transition: stroke-dashoffset 0.3s ease;"
       />
       <!-- Download percentage in Center (counter-rotate to cancel SVG's -rotate-90) -->
-      <text x="18" y="20" text-anchor="middle" transform="rotate(90, 18, 18)" class="text-xs font-bold fill-current">
+      <text
+        x="18"
+        y="20"
+        text-anchor="middle"
+        transform="rotate(90, 18, 18)"
+        class="text-xs font-bold fill-current"
+      >
         {Math.round(state.progress * 100)}%
       </text>
     </svg>
@@ -79,7 +100,9 @@
   {:else if state.status === "failed"}
     <!-- Error Icon -->
     <svg class={sizeMap[size].icon} fill="currentColor" viewBox="0 0 24 24">
-      <path d="M19 6.41L17.59 5 12 10.59 6.41 5 5 6.41 10.59 12 5 17.59 6.41 19 12 13.41 17.59 19 19 17.59 13.41 12 19 6.41z" />
+      <path
+        d="M19 6.41L17.59 5 12 10.59 6.41 5 5 6.41 10.59 12 5 17.59 6.41 19 12 13.41 17.59 19 19 17.59 13.41 12 19 6.41z"
+      />
     </svg>
   {:else if state.status === "pending"}
     <!-- Pending Icon (clock) -->
@@ -90,7 +113,12 @@
   {:else}
     <!-- Download Icon -->
     <svg class={sizeMap[size].icon} fill="none" stroke="currentColor" viewBox="0 0 24 24">
-      <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M4 16v1a3 3 0 003 3h10a3 3 0 003-3v-1m-4-4l-4 4m0 0l-4-4m4 4V4" />
+      <path
+        stroke-linecap="round"
+        stroke-linejoin="round"
+        stroke-width="2"
+        d="M4 16v1a3 3 0 003 3h10a3 3 0 003-3v-1m-4-4l-4 4m0 0l-4-4m4 4V4"
+      />
     </svg>
   {/if}
 </button>