feat(sdk): add RegisterStopHandler/RunStopHandlers and wire stop cleanup into registry lifecycle

- SDK PluginSDK gains RegisterStopHandler(fn func()) + RunStopHandlers()
  (LIFO, idempotent, cleared after running); synced to third_party copy
- Registry keeps per-plugin SDK refs (sdkRefs); StopAll/ReloadOne/
  DisablePlugin run handlers before calling Stop()
- timer built-in plugin demonstrates handler-based shutdown cleanup
- z_bridge (linux/windows templates) runs handlers before plugin.Stop()

cmd/gui/renderer/style.css

@@ -263,9 +263,13 @@ code { font-family:monospace; font-size:12px; color:var(--pre-color) }
   .msg { max-width:95% }
 }
 @media(max-width:768px) {
-  nav { padding:0 8px; gap:2px }
-  nav h1 { font-size:13px; margin-right:8px }
-  nav a { padding:8px 6px; font-size:11px }
+  nav { padding:0 6px; gap:2px; overflow-x:auto; scrollbar-width:none; -ms-overflow-style:none; flex-wrap:nowrap }
+  nav::-webkit-scrollbar { display:none }
+  nav h1 { display:none }
+  nav a { padding:10px 8px; font-size:12px; white-space:nowrap; flex-shrink:0 }
+  nav > div { flex-shrink:0 }
+  #conn-name-display { display:none }
+  .conn-indicator { padding:4px 6px }
   .container { padding:12px }
   .card { padding:12px }
   .grid-2,.grid-3,.grid-4 { grid-template-columns:1fr }
@@ -284,6 +288,12 @@ code { font-family:monospace; font-size:12px; color:var(--pre-color) }
   .health-item { flex-wrap:wrap; gap:4px }
   .health-item .check-name { flex:auto; width:100% }
 }
+@media(max-width:480px) {
+  .chat-layout { gap:10px }
+  .chat-sidebar { min-width:0 }
+  .msg { max-width:98% }
+  .settings-sidebar a { padding:6px 10px; font-size:12px }
+}
 
 /* Connection Manager */
 .overlay { position:fixed; inset:0; background:rgba(0,0,0,0.6); display:none; align-items:center; justify-content:center; z-index:1000 }

internal/config/registry.go

@@ -394,7 +394,6 @@ func (r *ConfigRegistry) seedDBValues(dataDir string) {
 	set("core.memory.text", filepath.Join(dataDir, "memory", "text"))
 	set("core.memory.documents", filepath.Join(dataDir, "memory", "documents"))
 	set("core.knowledge.path", filepath.Join(dataDir, "knowledge"))
-	set("core.skills.path", filepath.Join(dataDir, "skills"))
 	set("core.log.path", filepath.Join(dataDir, "log"))
 
 	set("core.agent.max_tool_turns", "10")
@@ -488,7 +487,6 @@ func (r *ConfigRegistry) seedCoreDefs(dataDir string) {
 	reg(ConfigDef{Key: "core.memory.text", Default: filepath.Join(dataDir, "memory", "text"), Type: "string", DisplayName: "文本记忆路径", Description: "短期文本记忆存储目录", Category: "paths"})
 	reg(ConfigDef{Key: "core.memory.documents", Default: filepath.Join(dataDir, "memory", "documents"), Type: "string", DisplayName: "文档记忆路径", Description: "文档记忆存储目录", Category: "paths"})
 	reg(ConfigDef{Key: "core.knowledge.path", Default: filepath.Join(dataDir, "knowledge"), Type: "string", DisplayName: "知识库路径", Description: "知识库存储目录", Category: "paths"})
-	reg(ConfigDef{Key: "core.skills.path", Default: filepath.Join(dataDir, "skills"), Type: "string", DisplayName: "技能目录", Description: "OpenClaw 技能存储目录", Category: "paths"})
 	reg(ConfigDef{Key: "core.log.path", Default: filepath.Join(dataDir, "log"), Type: "string", DisplayName: "日志目录", Description: "日志文件输出目录", Category: "paths"})
 
 	reg(ConfigDef{Key: "core.agent.max_tool_turns", Default: "10", Type: "int", DisplayName: "最大工具轮次", Description: "单次请求允许的最大工具调用轮数", Category: "agent"})

internal/plugin/registry.go

@@ -68,6 +68,7 @@ type Registry struct {
 	factories map[string]NativeFactory
 
 	pluginAutoRestart map[string]bool
+	sdkRefs           map[string]*sdk.PluginSDK
 
 	iom       *agentIO.IOManager
 	evBus     *events.Bus
@@ -103,6 +104,7 @@ func NewRegistry() *Registry {
 		plugins:           make(map[string]sdk.Plugin),
 		factories:         make(map[string]NativeFactory),
 		pluginAutoRestart: make(map[string]bool),
+		sdkRefs:           make(map[string]*sdk.PluginSDK),
 		knownDisabled:     make(map[string]bool),
 	}
 }
@@ -378,16 +380,25 @@ func (r *Registry) loadOne(plgDir, name string) bool {
 	r.mu.Lock()
 	r.plugins[name] = plg
 	r.pluginAutoRestart[name] = plgSDK.AutoRestart()
+	r.sdkRefs[name] = plgSDK
 	r.instances = append(r.instances, plg)
 	r.mu.Unlock()
 	log.Printf("[plugin] loaded: %s", name)
 	return true
 }
 
+// runStopHandlers 执行插件注册的停止清理回调（SDK 层），须在调用插件 Stop() 之前执行。
+func (r *Registry) runStopHandlers(name string) {
+	if sdk, ok := r.sdkRefs[name]; ok {
+		sdk.RunStopHandlers()
+	}
+}
+
 func (r *Registry) StopAll() {
 	r.mu.Lock()
 	defer r.mu.Unlock()
 	for _, p := range r.instances {
+		r.runStopHandlers(p.Name())
 		if err := p.Stop(); err != nil {
 			log.Printf("[plugin] stop %s: %v", p.Name(), err)
 		}
@@ -395,6 +406,7 @@ func (r *Registry) StopAll() {
 	r.plugins = make(map[string]sdk.Plugin)
 	r.instances = nil
 	r.pluginAutoRestart = make(map[string]bool)
+	r.sdkRefs = make(map[string]*sdk.PluginSDK)
 }
 
 func (r *Registry) Reload(dir string) (string, error) {
@@ -410,10 +422,12 @@ func (r *Registry) ReloadOne(name string) error {
 
 	r.mu.Lock()
 	if p, ok := r.plugins[name]; ok {
+		r.runStopHandlers(name)
 		if err := p.Stop(); err != nil {
 			log.Printf("[plugin] stop %s for reload: %v", name, err)
 		}
 		delete(r.plugins, name)
+		delete(r.sdkRefs, name)
 		for i, inst := range r.instances {
 			if inst.Name() == name {
 				r.instances = append(r.instances[:i], r.instances[i+1:]...)
@@ -481,10 +495,12 @@ func (r *Registry) Disable(name string) error {
 	r.mu.Lock()
 	p, ok := r.plugins[name]
 	if ok {
+		r.runStopHandlers(name)
 		if err := p.Stop(); err != nil {
 			log.Printf("[plugin] stop %s for disable: %v", name, err)
 		}
 		delete(r.plugins, name)
+		delete(r.sdkRefs, name)
 		for i, inst := range r.instances {
 			if inst.Name() == name {
 				r.instances = append(r.instances[:i], r.instances[i+1:]...)
@@ -539,10 +555,12 @@ func (r *Registry) DisablePlugin(name, by string) error {
 	r.mu.Lock()
 	p, ok := r.plugins[name]
 	if ok {
+		r.runStopHandlers(name)
 		if err := p.Stop(); err != nil {
 			log.Printf("[plugin] stop %s for disable: %v", name, err)
 		}
 		delete(r.plugins, name)
+		delete(r.sdkRefs, name)
 		for i, inst := range r.instances {
 			if inst.Name() == name {
 				r.instances = append(r.instances[:i], r.instances[i+1:]...)

internal/plugins/timer/plugin.go

@@ -42,6 +42,8 @@ func (p *Plugin) Name() string { return p.name }
 func (p *Plugin) Start(s *sdk.PluginSDK) error {
 	s.SetAutoRestart(true)
 	p.maxDur = 24 * time.Hour
+	// 停止清理（取消倒计时）交由 stop handler：内核在调用 Stop() 之前执行。
+	s.RegisterStopHandler(func() { close(p.stopCh) })
 	s.Settings().RegisterDef(sdk.ConfigDef{
 		Key: "max_duration", Type: "string", DisplayName: "最大定时时长",
 		Description: "允许设置的最大定时时长，例如 24h, 7d, 1h（默认 24h）",
@@ -118,7 +120,6 @@ func (p *Plugin) Start(s *sdk.PluginSDK) error {
 }
 
 func (p *Plugin) Stop() error {
-	close(p.stopCh)
 	p.wg.Wait()
 	return nil
 }

internal/plugins/webui/dashboard.html

@@ -258,9 +258,11 @@ code { font-family:monospace; font-size:12px; color:var(--pre-color) }
   .msg { max-width:95% }
 }
 @media(max-width:768px) {
-  nav { padding:0 8px; gap:2px }
-  nav h1 { font-size:13px; margin-right:8px }
-  nav a { padding:8px 6px; font-size:11px }
+  nav { padding:0 6px; gap:2px; overflow-x:auto; scrollbar-width:none; -ms-overflow-style:none; flex-wrap:nowrap }
+  nav::-webkit-scrollbar { display:none }
+  nav h1 { font-size:0; margin-right:6px; color:var(--accent) }
+  nav a { padding:10px 8px; font-size:12px; white-space:nowrap; flex-shrink:0 }
+  nav > div { flex-shrink:0 }
   .container { padding:12px }
   .card { padding:12px }
   .grid-2,.grid-3,.grid-4 { grid-template-columns:1fr }

third_party/homeagent-sdk/sdk/plugin.go

@@ -199,6 +199,9 @@ type PluginSDK struct {
 	events    EventSubscriber
 
 	autoRestart bool
+
+	stopMu       sync.Mutex
+	stopHandlers []func()
 }
 
 // New creates a PluginSDK with the given dependencies.
@@ -367,3 +370,28 @@ func (s *PluginSDK) SetAutoRestart(enabled bool) { s.autoRestart = enabled }
 
 // AutoRestart 返回插件是否允许自动重启。
 func (s *PluginSDK) AutoRestart() bool { return s.autoRestart }
+
+// RegisterStopHandler 注册插件停止阶段的清理回调。
+// 注册的 handler 会在插件 Stop() 之前按"后注册先执行"的顺序调用，
+// 适用于释放资源、落盘状态、关闭子进程等停止时清理操作。
+// 可注册多个；执行后清空（进程停止前只执行一次）。
+func (s *PluginSDK) RegisterStopHandler(fn func()) {
+	if fn == nil {
+		return
+	}
+	s.stopMu.Lock()
+	s.stopHandlers = append(s.stopHandlers, fn)
+	s.stopMu.Unlock()
+}
+
+// RunStopHandlers 执行全部已注册的 stop handler（后注册先执行，执行后清空，幂等）。
+// 由内核（内置插件）或插件桥接层（外部插件 z_bridge 的 StopPlugin）在调用插件 Stop() 前执行。
+func (s *PluginSDK) RunStopHandlers() {
+	s.stopMu.Lock()
+	handlers := append([]func(){}, s.stopHandlers...)
+	s.stopHandlers = nil
+	s.stopMu.Unlock()
+	for i := len(handlers) - 1; i >= 0; i-- {
+		handlers[i]()
+	}
+}