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/store.go

@@ -33,6 +33,9 @@ type store struct {
 	theme           string
 	autoLockMinutes int
 	minimizeToTray  bool
+	autoStart       bool
+	windowWidth     int
+	windowHeight    int
 
 	// dirty signals a save is pending. The worker reads & resets it.
 	dirty       bool
@@ -47,21 +50,24 @@ type store struct {
 
 // Preferences returns the persisted top-level prefs. UI code reads these
 // after Load to seed dialog defaults.
-func (s *store) Preferences() (language, theme string, autoLockMinutes int, minimizeToTray bool) {
+func (s *store) Preferences() (language, theme string, autoLockMinutes int, minimizeToTray, autoStart bool, windowWidth, windowHeight int) {
 	s.mu.Lock()
 	defer s.mu.Unlock()
-	return s.language, s.theme, s.autoLockMinutes, s.minimizeToTray
+	return s.language, s.theme, s.autoLockMinutes, s.minimizeToTray, s.autoStart, s.windowWidth, s.windowHeight
 }
 
 // SetPreferences updates the persisted top-level prefs and schedules a
 // save. Callers pass the current value for each field — there is no
 // per-field "leave unchanged" sentinel.
-func (s *store) SetPreferences(language, theme string, autoLockMinutes int, minimizeToTray bool) {
+func (s *store) SetPreferences(language, theme string, autoLockMinutes int, minimizeToTray, autoStart bool, windowWidth, windowHeight int) {
 	s.mu.Lock()
 	s.language = language
 	s.theme = theme
 	s.autoLockMinutes = autoLockMinutes
 	s.minimizeToTray = minimizeToTray
+	s.autoStart = autoStart
+	s.windowWidth = windowWidth
+	s.windowHeight = windowHeight
 	s.mu.Unlock()
 	s.Push()
 }
@@ -119,6 +125,9 @@ func (s *store) Load(passphrase []byte) (*config.Config, error) {
 	s.theme = cfg.Theme
 	s.autoLockMinutes = cfg.AutoLockMinutes
 	s.minimizeToTray = cfg.MinimizeToTray
+	s.autoStart = cfg.AutoStart
+	s.windowWidth = cfg.WindowWidth
+	s.windowHeight = cfg.WindowHeight
 	s.mu.Unlock()
 	logger.WithField("entries", len(cfg.Entries)).Debug("config loaded into store")
 	return cfg, nil
@@ -160,6 +169,15 @@ func (s *store) Encrypted() bool {
 	return s.encrypted
 }
 
+// SetWindowSize updates the stored window dimensions and schedules a save.
+func (s *store) SetWindowSize(w, h int) {
+	s.mu.Lock()
+	s.windowWidth = w
+	s.windowHeight = h
+	s.mu.Unlock()
+	s.Push()
+}
+
 // Push schedules a save. Calls within ~300ms of each other coalesce into
 // a single write.
 func (s *store) Push() {
@@ -196,6 +214,9 @@ func (s *store) run() {
 		theme := s.theme
 		autoLock := s.autoLockMinutes
 		minToTray := s.minimizeToTray
+		autoStart := s.autoStart
+		winW := s.windowWidth
+		winH := s.windowHeight
 		s.mu.Unlock()
 
 		entries := s.snapshotFn()
@@ -205,6 +226,9 @@ func (s *store) run() {
 			Theme:           theme,
 			AutoLockMinutes: autoLock,
 			MinimizeToTray:  minToTray,
+			AutoStart:       autoStart,
+			WindowWidth:     winW,
+			WindowHeight:    winH,
 			Encrypted:       enc,
 			Entries:         entries,
 		}