feat(audit): Batch 25 — project reorg (CC12), leading DI args (CC7), CC10 by-design

CC12: renderer views/ (5 screens + Onboarding + settings cards) +
lib/ (theme/thumb/datetime/id/qualityOptions/useClipboardLink/queueStats);
main core/ (buildArgs/validation/indexerCore/ytdlpPolicy). git mv preserved
history; all src+test imports updated. Build emits view chunks from views/,
344 tests + typecheck green, live probe rendered all screens.
CC7: wc/onProgress is the leading arg everywhere — downloadAppUpdate(wc,url),
indexSource(onProgress,url,signal), indexSourceCancelable(onProgress,url).
CC10: closed by-design — jsonStore backs all records; settings stay in
electron-store for DPAPI secret encryption (a deliberate two-store split).
Also closes the UI24/W4 context-menu cross-reference.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

test/real-download.integration.test.ts

@@ -13,7 +13,7 @@ import { spawnSync } from 'child_process'
 import { mkdtempSync, existsSync, rmSync, statSync, readFileSync } from 'fs'
 import { tmpdir } from 'os'
 import { join, resolve } from 'path'
-import { buildArgs, parseExtraArgs } from '../src/main/buildArgs'
+import { buildArgs, parseExtraArgs } from '../src/main/core/buildArgs'
 import { DEFAULT_DOWNLOAD_OPTIONS, type StartDownloadOptions } from '@shared/ipc'
 
 const RUN = process.env.AEROFETCH_REAL_DOWNLOAD === '1'