feat(audit): Batch 23 — settings key renames with migration (CC1) + config.ts (CC11)

CC1: customCommandEnabled→enableCustomCommands, downloadArchive→
useDownloadArchive, clipboardWatch→watchClipboard, sidebarCollapsed→
isSidebarCollapsed, hardwareAcceleration→useHardwareAcceleration,
videoDir/audioDir→videoFolder/audioFolder (+ chooseDir/clearDir store
actions → chooseFolder/clearFolder). Rename map in settingsMigration.ts
(pure, unit-tested incl. pre-rename backup fixture), applied as an
idempotent on-disk shim at store open and on backup import so old
settings.json and old backups both keep working.

CC11: update host/owner/repo + release API moved to src/main/config.ts.

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

src/main/settings.ts

@@ -1,6 +1,7 @@
 import { app, safeStorage } from 'electron'
 import Store from 'electron-store'
 import { isSafeFilenameTemplate, isSafeOutputDir } from './validation'
+import { RENAMED_SETTINGS_KEYS } from './settingsMigration'
 import { logger } from './logger'
 import {
   AUDIO_FORMATS,
@@ -91,11 +92,28 @@ function sanitizeOptions(input: unknown): DownloadOptions {
   }
 }
 
-// Constructed lazily — electron-store needs app paths, which exist only after
-// the app is ready (all callers run post-ready).
+// Constructed lazily — electron-store needs app paths. (`userData` resolves
+// pre-ready too, which the W15 hardware-acceleration gate in index.ts relies on.)
 let store: Store<Settings> | null = null
 function getStore(): Store<Settings> {
-  if (!store) store = new Store<Settings>({ name: 'settings', defaults: DEFAULTS })
+  if (!store) {
+    store = new Store<Settings>({ name: 'settings', defaults: DEFAULTS })
+    // CC1 key-rename migration: move any legacy key still on disk to its new
+    // name, once. `has()` reports defaults as present, so probe the raw store
+    // object instead; idempotent because the old key is deleted afterwards.
+    const raw = store.store as unknown as Record<string, unknown>
+    const legacy = RENAMED_SETTINGS_KEYS.filter(([oldKey]) => oldKey in raw)
+    if (legacy.length > 0) {
+      const untyped = store as unknown as {
+        set(k: string, v: unknown): void
+        delete(k: string): void
+      }
+      for (const [oldKey, newKey] of legacy) {
+        untyped.set(newKey, raw[oldKey])
+        untyped.delete(oldKey)
+      }
+    }
+  }
   return store
 }
 
@@ -185,7 +203,7 @@ export function getSettings(): Settings {
   // `set`, so only write when something actually changed — otherwise this churns
   // the settings file on every read. (audit P1)
   const cur = s.store
-  // videoDir/audioDir are intentionally left blank by default — an empty value
+  // videoFolder/audioFolder are intentionally left blank by default — an empty value
   // routes that kind into Documents\Video / Documents\Audio (see buildCommand).
   // Only an explicit user choice (Settings → folders) overrides that.
   // Migrate settings files that predate downloadOptions (or hold a partial one),
@@ -278,18 +296,18 @@ function applySettings(s: Store<Settings>, partial: Partial<Settings>): void {
         // well-formed 24h HH:MM is ever stored (L51).
         if (isValidSyncTime(value)) s.set('syncTime', value)
         break
-      case 'clipboardWatch':
+      case 'watchClipboard':
       case 'useAria2c':
       case 'restrictFilenames':
-      case 'downloadArchive':
+      case 'useDownloadArchive':
       case 'autoUpdateYtdlp':
-      case 'customCommandEnabled':
+      case 'enableCustomCommands':
       case 'notifyOnComplete':
       case 'autoDownloadNew':
       case 'hasCompletedOnboarding':
       case 'minimizeToTray':
-      case 'sidebarCollapsed':
-      case 'hardwareAcceleration':
+      case 'isSidebarCollapsed':
+      case 'useHardwareAcceleration':
         if (typeof value === 'boolean') s.set(key, value)
         break
       case 'launchAtStartup':
@@ -325,8 +343,8 @@ function applySettings(s: Store<Settings>, partial: Partial<Settings>): void {
         // group (it merges field changes locally before calling setSettings).
         s.set('downloadOptions', sanitizeOptions(value))
         break
-      case 'videoDir':
-      case 'audioDir':
+      case 'videoFolder':
+      case 'audioFolder':
         // An empty string is allowed — it clears the override and restores the
         // Documents\Video / Documents\Audio default for that kind.
         if (typeof value === 'string' && (value.trim() === '' || isSafeOutputDir(value.trim()))) {