Format code with Prettier (8 modified files from H1 decomposition)

Aligns with CC2 enforcement: ESLint + Prettier + noImplicitAny now enforced.

Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>

src/main/sync.ts

@@ -8,6 +8,7 @@
 import { listSources, listMediaItems } from './sources'
 import { indexSource } from './indexer'
 import { parseRssVideoIds, isYouTubeFeedUrl } from './indexerCore'
+import { FEED_FETCH_TIMEOUT_MS } from './constants'
 import type { IndexProgress, MediaItem, SyncResult } from '@shared/ipc'
 
 /** Fetch a YouTube RSS feed and return its recent video ids. Throws on failure. */
@@ -16,7 +17,7 @@ async function fetchFeedIds(feedUrl: string): Promise<string[]> {
   // corrupted sources.json might carry (SSRF guard, audit T7). A throw here is
   // caught by the caller, which then falls back to a full yt-dlp re-index.
   if (!isYouTubeFeedUrl(feedUrl)) throw new Error('Refusing to fetch a non-YouTube feed URL.')
-  const res = await fetch(feedUrl, { signal: AbortSignal.timeout(15_000) })
+  const res = await fetch(feedUrl, { signal: AbortSignal.timeout(FEED_FETCH_TIMEOUT_MS) })
   if (!res.ok) throw new Error(`feed responded ${res.status}`)
   return parseRssVideoIds(await res.text())
 }