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

src/main/commands.ts

@@ -376,7 +376,7 @@ function loadHistoryPrefs(): { historyEnabled: boolean; historyLimit: number } {
   try {
     const terminal = loadSettings().terminal
     return {
-      historyEnabled: terminal.historyEnabled !== false,
+      historyEnabled: terminal.historyEnabled === true,
       historyLimit: normalizeLimit(terminal.historyLimit)
     }
   } catch {

src/main/ipc.ts

@@ -1,6 +1,7 @@
-import { app, ipcMain } from 'electron'
+import { app, ipcMain, shell } from 'electron'
 import fontList from 'font-list'
 import { homedir } from 'os'
+import { statSync } from 'fs'
 import { Ipc, type AppInfo, type LayoutMeta, type PtyCreateOptions } from '../shared/ipc'
 import type { HostKeyAction, SessionOpenOptions, SshConnection, SshConnectionInput } from '../shared/connections'
 import { getLayout, listLayouts, saveLayout, deleteLayout } from './layouts'
@@ -181,4 +182,17 @@ export function registerIpc(): void {
     resolveCwd(current, arg)
   )
   ipcMain.handle(Ipc.CWD_REPORT, (_event, payload: string) => normalizeReportedCwd(payload))
+
+  // Open a local directory in the file manager. Validates the path is an
+  // existing directory so renderer-supplied values can't open arbitrary files.
+  ipcMain.handle(Ipc.CWD_OPEN, (_event, dir: unknown): boolean => {
+    if (typeof dir !== 'string' || dir === '') return false
+    try {
+      if (!statSync(dir).isDirectory()) return false
+    } catch {
+      return false
+    }
+    void shell.openPath(dir)
+    return true
+  })
 }

src/main/settingsStore.ts

@@ -1,5 +1,5 @@
 import { app, ipcMain, powerSaveBlocker } from 'electron'
-import { mkdirSync, readFileSync, renameSync, writeFileSync } from 'fs'
+import { existsSync, mkdirSync, readFileSync, renameSync, writeFileSync } from 'fs'
 import { join } from 'path'
 import { Ipc } from '../shared/ipc'
 import {
@@ -161,6 +161,32 @@ export function loadSettings(): AppSettings {
 
 let settingsQueue: Promise<unknown> = Promise.resolve()
 
+/**
+ * One-time reset for existing installs: input suggestions and command history
+ * are now off by default, but installs that upgraded from earlier versions
+ * already have `true` persisted — flip those off exactly once, then leave a
+ * marker so the user's later choices are never touched again.
+ */
+function migrateDefaultsOnce(): void {
+  try {
+    const flag = join(app.getPath('userData'), '.migrate-defaults-v2')
+    if (existsSync(flag)) return
+    const current = loadSettings()
+    if (current.terminal.suggestEnabled || current.terminal.historyEnabled) {
+      current.terminal.suggestEnabled = false
+      current.terminal.historyEnabled = false
+      mkdirSync(app.getPath('userData'), { recursive: true })
+      const path = settingsPath()
+      const tmp = `${path}.tmp`
+      writeFileSync(tmp, JSON.stringify(current, null, 2), 'utf8')
+      renameSync(tmp, path)
+    }
+    writeFileSync(flag, '', 'utf8')
+  } catch {
+    // best effort: a failed migration just keeps the old values
+  }
+}
+
 /**
  * Serialize a settings mutation against every other writer. Each queued step
  * re-reads the file so the mutation applies on top of the latest state — a
@@ -196,6 +222,7 @@ export function saveSettings(next: AppSettings): Promise<AppSettings> {
 }
 
 export function registerSettingsIpc(): void {
+  migrateDefaultsOnce()
   ipcMain.handle(Ipc.SETTINGS_GET, () => loadSettings())
   ipcMain.handle(Ipc.SETTINGS_SET, (_event, next: AppSettings) => saveSettings(next))
 }