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>

src/main/indexer.ts

@@ -24,7 +24,7 @@ import {
   stableSourceId,
   type RawEntry,
   type NamedPlaylist
-} from './indexerCore'
+} from './core/indexerCore'
 import { getSource, upsertSource, mergeMediaItems } from './sources'
 import type { IndexProgress, IndexSourceResult, Source, SourceKind } from '@shared/ipc'
 
@@ -89,13 +89,13 @@ export function cancelIndexing(): void {
  * The IPC layer calls this; sync.ts calls the raw indexSource (not cancelable).
  */
 export async function indexSourceCancelable(
-  url: string,
-  onProgress: (p: IndexProgress) => void
+  onProgress: (p: IndexProgress) => void,
+  url: string
 ): Promise<IndexSourceResult> {
   const controller = new AbortController()
   activeIndexAborts.add(controller)
   try {
-    return await indexSource(url, onProgress, controller.signal)
+    return await indexSource(onProgress, url, controller.signal)
   } finally {
     activeIndexAborts.delete(controller)
   }
@@ -107,8 +107,8 @@ export async function indexSourceCancelable(
  * status line — it's best-effort and never affects the result.
  */
 export async function indexSource(
-  url: string,
   onProgress: (p: IndexProgress) => void,
+  url: string,
   signal?: AbortSignal
 ): Promise<IndexSourceResult> {
   // Returned whenever a Cancel arrives mid-walk. It deliberately does NOT push a