feat(ui): 开机自启动 + 窗口大小记忆

- win32/autostart: SetAutoStart/IsAutoStartEnabled 操作 HKCU Run 键
- win32/window_size: GetWindowSize 通过 GetWindowRect 获取窗口尺寸
- config: 新增 AutoStart、WindowWidth、WindowHeight 字段
- store: Preferences/SetPreferences 扩展支持 autoStart + windowSize
- dialog_preferences: 新增"开机自启动"复选框
- app.go: 启动时恢复窗口大小，关闭时通过 SetWindowSize 保存
- i18n: label_auto_start / hint_auto_start 三语翻译

internal/ui/app.go

@@ -38,9 +38,20 @@ func Run(configPath string) error {
 
 	go func() {
 		w := new(app.Window)
+		// Read stored window size or use defaults.
+		cfg, _ := config.LoadYAML(configPath, nil)
+		winW, winH := 560, 420
+		if cfg != nil {
+			if cfg.WindowWidth > 0 {
+				winW = cfg.WindowWidth
+			}
+			if cfg.WindowHeight > 0 {
+				winH = cfg.WindowHeight
+			}
+		}
 		w.Option(
 			app.Title(i18n.T("app_title")),
-			app.Size(unit.Dp(560), unit.Dp(420)),
+			app.Size(unit.Dp(winW), unit.Dp(winH)),
 		)
 		if err := loop(w, configPath); err != nil {
 			global.Log.WithField("func", fn).WithError(err).Error("ui loop failed")
@@ -195,7 +206,7 @@ func loop(w *app.Window, configPath string) error {
 	// Seed the theme cache from the stored preference. Empty / unknown
 	// values resolve to "system" which buildTheme then maps to light or
 	// dark via the OS-specific systemPrefersDark probe.
-	_, themePref, _, _ := state.store.Preferences()
+	_, themePref, _, _, _, _, _ := state.store.Preferences()
 	state.themeMode = normalizeThemeMode(themePref)
 
 	// Spin up the global hotkey manager and register whatever the user
@@ -208,7 +219,7 @@ func loop(w *app.Window, configPath string) error {
 	// Install the system tray icon + close-hook (Windows only). HWND
 	// discovery races the very first FrameEvent, so kick it from a
 	// goroutine that polls FindWindow for a few hundred ms.
-	_, _, _, minToTray := state.store.Preferences()
+	_, _, _, minToTray, _, _, _ := state.store.Preferences()
 	go func() {
 		tr := installTrayRuntime(i18n.T("app_title"), minToTray, w.Invalidate)
 		state.mu.Lock()
@@ -229,6 +240,12 @@ func loop(w *app.Window, configPath string) error {
 	for {
 		switch e := w.Event().(type) {
 		case app.DestroyEvent:
+			// Persist window size before exiting.
+			if hwnd := win32.FindWindowByTitle(i18n.T("app_title")); hwnd != 0 {
+				if w, h, ok := win32.GetWindowSize(hwnd); ok && w > 0 && h > 0 {
+					state.store.SetWindowSize(w, h)
+				}
+			}
 			global.Log.WithField("func", fn).Info("window closed")
 			state.tray.Stop()
 			return e.Err
@@ -267,7 +284,7 @@ func (st *appState) maybeAutoLock() bool {
 	if !st.store.Encrypted() {
 		return false
 	}
-	_, _, autoLockMinutes, _ := st.store.Preferences()
+	_, _, autoLockMinutes, _, _, _, _ := st.store.Preferences()
 	if autoLockMinutes <= 0 {
 		return false
 	}
@@ -563,8 +580,8 @@ func drawFrame(gtx layout.Context, th *material.Theme, st *appState, w *app.Wind
 			case settingsActionRestoreBackup:
 				st.restoreDlg = newRestoreBackupDialog()
 			case settingsActionPreferences:
-				lang, theme, autoLock, minToTray := st.store.Preferences()
-				st.prefsDialog = newPreferencesDialog(lang, normalizeThemeMode(theme), autoLock, minToTray)
+				lang, theme, autoLock, minToTray, autoStart, _, _ := st.store.Preferences()
+				st.prefsDialog = newPreferencesDialog(lang, normalizeThemeMode(theme), autoLock, minToTray, autoStart)
 			case settingsActionAbout:
 				st.aboutDialog = newAboutDialog()
 			}
@@ -577,8 +594,10 @@ func drawFrame(gtx layout.Context, th *material.Theme, st *appState, w *app.Wind
 	if st.prefsDialog != nil {
 		return st.prefsDialog.Layout(gtx, th, func(r preferencesResult) {
 			if !r.cancel {
-				_, _, _, prevMinToTray := st.store.Preferences()
-				st.store.SetPreferences(r.language, string(r.theme), r.autoLockMinutes, r.minimizeToTray)
+				_, _, _, prevMinToTray, _, _, _ := st.store.Preferences()
+				_, _, _, _, _, winW, winH := st.store.Preferences()
+				st.store.SetPreferences(r.language, string(r.theme), r.autoLockMinutes, r.minimizeToTray, r.autoStart, winW, winH)
+				win32.SetAutoStart(r.autoStart)
 				i18n.SetLanguage(r.language)
 				st.themeMode = r.theme
 				st.theme = nil // force rebuild on next frame