feat: shortcut recorder, configurable terminal toolbar, offline changelog

- Global shortcut setting: press-to-record input (Esc cancels, Backspace
  clears); requires a modifier or F-key so plain typing can't be hijacked
- Terminal toolbar: three settings-gated buttons — session-log record
  (default off), open logs dir (default off), open working directory
  (default on, new; local sessions only, cwd tracked via cd/OSC 7)
- Input suggestions + command history now default off, with a one-time
  migration that resets persisted true values for existing installs
- Settings dialog: fix broken scrolling — antd v6 renamed the Tabs scroll
  container to .ant-tabs-body-holder; theme gallery drops its nested
  scroll (single outer scrollbar)
- Offline changelog: CHANGELOG.md at repo root bundled via ?raw; About tab
  reads it first, network sources stay as fallback; scripts/sync-changelog.cjs
  merges RELEASE_NOTES.md per release (release.cjs fails without an entry)
- commands.ts history prefs default aligned with new off-by-default

scripts/release.cjs

@@ -40,6 +40,13 @@ if (pkgVersion !== V) {
   console.error(`package.json is ${pkgVersion} but you asked to publish ${V}`)
   process.exit(1)
 }
+// The changelog ships inside the app, so it must mention this version — a
+// missing entry means `sync-changelog.cjs` was skipped before the build.
+const changelog = path.join(ROOT, 'CHANGELOG.md')
+if (!fs.existsSync(changelog) || !fs.readFileSync(changelog, 'utf8').includes(`## v${V} `)) {
+  console.error(`CHANGELOG.md has no v${V} entry — run: node scripts/sync-changelog.cjs (then rebuild)`)
+  process.exit(1)
+}
 const ymlPath = path.join(R, 'latest.yml')
 if (!fs.existsSync(ymlPath)) { console.error('missing release/latest.yml — run npm run dist first'); process.exit(1) }
 const ymlVersion = fs.readFileSync(ymlPath, 'utf8').match(/^version:\s*(\S+)/m)?.[1]