style: format web/src with oxfmt defaults (via vp fmt)

One-time mechanical sweep, isolated from any functional change.
- oxfmt defaults: double quotes, semicolons, 2-space indent, LF,
  printWidth 100, trailing commas, bracket spacing, arrow parens.
- vite.config.ts gains an fmt.ignorePatterns block for web/static:
  vendored/minified assets (htmx.min.js, compiled css) must never
  be reformatted.
- Verified: rebuild after the sweep produces byte-identical JS/CSS
  bundles; only sourcemaps changed (they embed sourcesContent).

web/src/audio.ts

@@ -43,7 +43,11 @@ export function localOffsetFor(tracks: AudioTrack[], index: number, globalSecond
 
 // globalSecondsFor converts (track i, local seconds) back to the global
 // position — the inverse of localOffsetFor.
-export function globalSecondsFor(tracks: AudioTrack[], index: number, localSeconds: number): number {
+export function globalSecondsFor(
+  tracks: AudioTrack[],
+  index: number,
+  localSeconds: number,
+): number {
   const track = tracks[index];
   return (track ? track.start : 0) + Math.max(0, localSeconds);
 }
@@ -309,10 +313,7 @@ Alpine.data("audioReader", () => ({
     try {
       const [chaptersResp, progress] = await Promise.all([
         fetch(readConfig().chapterEndpoint, { headers: getAuthHeaders() }),
-        fetch(
-          `/api/media-items/${this.mediaItemId}/progress`,
-          { headers: getAuthHeaders() },
-        ),
+        fetch(`/api/media-items/${this.mediaItemId}/progress`, { headers: getAuthHeaders() }),
       ]);
       if (chaptersResp.ok) {
         const data = await chaptersResp.json();
@@ -375,9 +376,7 @@ Alpine.data("audioReader", () => ({
 
   chapterTitle(): string {
     const ch = this.chapters[this.currentChapterIdx];
-    return ch
-      ? ch.title || `Chapter ${ch.index + 1}`
-      : this.title;
+    return ch ? ch.title || `Chapter ${ch.index + 1}` : this.title;
   },
 
   currentChapter(): number {
@@ -407,7 +406,10 @@ Alpine.data("audioReader", () => ({
   },
 
   skip(direction: 1 | -1) {
-    const target = Math.max(0, this.globalPosition() + direction * (Number(this.skipSeconds) || 10));
+    const target = Math.max(
+      0,
+      this.globalPosition() + direction * (Number(this.skipSeconds) || 10),
+    );
     this.seekTo(target);
   },
 
@@ -494,8 +496,7 @@ Alpine.data("audioReader", () => ({
         .filter((b) => String(b.position || "").startsWith("audio:"))
         .sort(
           (a, b) =>
-            this.bookmarkSeconds(String(a.position)) -
-            this.bookmarkSeconds(String(b.position)),
+            this.bookmarkSeconds(String(a.position)) - this.bookmarkSeconds(String(b.position)),
         );
     } catch {
       // bookmarks are non-critical UI
@@ -558,9 +559,7 @@ Alpine.data("audioReader", () => ({
   },
 
   async saveNote() {
-    const b = this.bookmarks.find(
-      (x) => String(x.id) === this.editingBookmarkId,
-    );
+    const b = this.bookmarks.find((x) => String(x.id) === this.editingBookmarkId);
     if (!b) return;
     try {
       const resp = await fetch(
@@ -585,10 +584,10 @@ Alpine.data("audioReader", () => ({
 
   async deleteBookmark(b: Record<string, unknown>) {
     try {
-      const resp = await fetch(
-        `/api/media-items/${this.mediaItemId}/bookmarks/${b.id}`,
-        { method: "DELETE", headers: getAuthHeaders() },
-      );
+      const resp = await fetch(`/api/media-items/${this.mediaItemId}/bookmarks/${b.id}`, {
+        method: "DELETE",
+        headers: getAuthHeaders(),
+      });
       if (!resp.ok) throw new Error("delete failed");
       await this.loadBookmarks();
     } catch {