chore: prettier format pass on branch files

Auto-format all files modified during the documents-hub-split feature
branch that were not yet aligned with the project's Prettier config
(single quotes, semicolons, trailing commas).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

src/lib/services/storage.ts

@@ -14,8 +14,8 @@ export function generateStorageKey(
 
 export function sanitizeFilename(name: string): string {
   return name
-    .replace(/[/\\:]/g, '')       // strip path chars
-    .replace(/\x00/g, '')          // strip null bytes
+    .replace(/[/\\:]/g, '') // strip path chars
+    .replace(/\x00/g, '') // strip null bytes
     .replace(/[\x01-\x1f\x7f]/g, '') // strip control chars
     .trim()
     .slice(0, 255);