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>

test/buildArgs.test.ts

@@ -389,7 +389,7 @@ describe('selectExtraArgs — custom-command consent gate (audit F2)', () => {
     // The core fix: a renderer-supplied extraArgs must NOT run while the gate is off.
     expect(
       selectExtraArgs({
-        customCommandEnabled: false,
+        enableCustomCommands: false,
         perDownloadExtraArgs: '--exec "calc.exe"',
         defaultTemplateId: 'danger',
         templates
@@ -400,7 +400,7 @@ describe('selectExtraArgs — custom-command consent gate (audit F2)', () => {
   it('returns [] when disabled even if a default template id is set', () => {
     expect(
       selectExtraArgs({
-        customCommandEnabled: false,
+        enableCustomCommands: false,
         perDownloadExtraArgs: undefined,
         defaultTemplateId: 'thumb',
         templates
@@ -411,7 +411,7 @@ describe('selectExtraArgs — custom-command consent gate (audit F2)', () => {
   it('parses a per-download override when enabled', () => {
     expect(
       selectExtraArgs({
-        customCommandEnabled: true,
+        enableCustomCommands: true,
         perDownloadExtraArgs: '--write-thumbnail --no-mtime',
         defaultTemplateId: null,
         templates
@@ -422,7 +422,7 @@ describe('selectExtraArgs — custom-command consent gate (audit F2)', () => {
   it('an explicit empty override yields [] even with a default template set', () => {
     expect(
       selectExtraArgs({
-        customCommandEnabled: true,
+        enableCustomCommands: true,
         perDownloadExtraArgs: '',
         defaultTemplateId: 'thumb',
         templates
@@ -433,7 +433,7 @@ describe('selectExtraArgs — custom-command consent gate (audit F2)', () => {
   it('falls back to the default template when no per-download override is given', () => {
     expect(
       selectExtraArgs({
-        customCommandEnabled: true,
+        enableCustomCommands: true,
         perDownloadExtraArgs: undefined,
         defaultTemplateId: 'thumb',
         templates
@@ -444,7 +444,7 @@ describe('selectExtraArgs — custom-command consent gate (audit F2)', () => {
   it('returns [] when the default template id matches nothing', () => {
     expect(
       selectExtraArgs({
-        customCommandEnabled: true,
+        enableCustomCommands: true,
         perDownloadExtraArgs: undefined,
         defaultTemplateId: 'missing',
         templates
@@ -550,7 +550,7 @@ describe('format sorting (-S)', () => {
 
 describe('selectExtraArgs url-pattern matching', () => {
   const base = {
-    customCommandEnabled: true,
+    enableCustomCommands: true,
     perDownloadExtraArgs: undefined,
     defaultTemplateId: null as string | null
   }