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/settings.ts

@@ -1,6 +1,4 @@
 import { app, safeStorage } from 'electron'
-import { join } from 'path'
-import { mkdirSync } from 'fs'
 import Store from 'electron-store'
 import { isSafeFilenameTemplate, isSafeOutputDir } from './validation'
 import {
@@ -43,36 +41,6 @@ export function applyLaunchAtStartup(enabled: boolean): void {
   }
 }
 
-/** Fixed path for the --download-archive file; not user-configurable. */
-export function getDownloadArchivePath(): string {
-  return join(app.getPath('userData'), 'download-archive.txt')
-}
-
-/**
- * The default per-kind download destination: video → Documents\Video,
- * audio → Documents\Audio. Used when the user hasn't set an explicit output
- * folder (Settings → Download folder), so downloads are sorted by type.
- */
-export function getDefaultMediaDir(kind: 'video' | 'audio'): string {
-  return join(app.getPath('documents'), kind === 'audio' ? 'Audio' : 'Video')
-}
-
-/**
- * Create the Documents\Video and Documents\Audio folders up front (called once
- * at startup) so they exist the moment the app opens, not just after the first
- * download. Best-effort: yt-dlp also creates the output dir at download time, so
- * a failure here (read-only Documents, redirected folder) is non-fatal.
- */
-export function ensureMediaDirs(): void {
-  for (const kind of ['video', 'audio'] as const) {
-    try {
-      mkdirSync(getDefaultMediaDir(kind), { recursive: true })
-    } catch {
-      /* non-fatal — the download path will be created on demand instead */
-    }
-  }
-}
-
 // Coerce an untrusted partial into a valid DownloadOptions, falling back to the
 // defaults for any missing/invalid field. Used both to migrate older settings
 // files (which predate downloadOptions) and to validate renderer writes.