refactor: migrate built-in plugins to SDK-only interface

- Six-phase plan complete: webui/cli/healthcheck/pluginmgr/clawhubadapter
  now interact with the kernel exclusively via internal/sdk interfaces;
  all Configure() calls and package-level global injection removed
- buildSDK in internal/plugin/registry.go is the single assembly point
- Add internal/sdk/events.go exporting event types/constants
- Fix ProviderManager cooldown sharing: LuaAdaptedProvider.Name() now
  returns the source name instead of lua_<adapter>, so multiple sources
  sharing an adapter (single script load via shared VM AdapterCache) no
  longer share failure-cooldown state
- Verified: build/vet/tests green, deployed to homeagent.service with
  full plugin capability testing via local OpenAI-compatible mock

internal/plugins/clawhubadapter/plugin.go

@@ -31,18 +31,11 @@ var pySimulatorSrc string
 //go:embed simulator/openclaw_cli.js
 var openclawCliSrc string
 
-var SkillsDir string
-var SimulatorDir string
-
 func init() {
 	plugin.RegisterPluginMeta("clawhubadapter", "ClawHub 适配器", "ClawHub Adapter")
 	plugin.RegisterFactory("clawhubadapter", func(name string, config map[string]interface{}) (sdk.Plugin, error) {
-		dir := SkillsDir
-		if dir == "" {
-			dataDir, ok := config["data_dir"].(string)
-			if !ok {
-				return nil, fmt.Errorf("clawhubadapter plugin: config missing 'data_dir' or not a string")
-			}
+		dir := ""
+		if dataDir, ok := config["data_dir"].(string); ok && dataDir != "" {
 			dir = filepath.Join(dataDir, "skills")
 		}
 		return New(name, dir), nil
@@ -63,8 +56,8 @@ type Plugin struct {
 }
 
 func New(name, skillsDir string) *Plugin {
-	sd := SimulatorDir
-	if sd == "" {
+	sd := ""
+	if skillsDir != "" {
 		sd = filepath.Join(skillsDir, ".simulator")
 	}
 	return &Plugin{
@@ -100,6 +93,20 @@ func (p *Plugin) Start(s *sdk.PluginSDK) error {
 			p.simulatorDir = s
 		}
 	}
+	// 默认目录：内核 data_dir 下 skills 目录（与配置 core.daemon.data_dir 对齐）
+	if p.skillsDir == "" {
+		if v, _ := s.Settings().GetCore("daemon.data_dir"); v != nil {
+			if dir, ok := v.(string); ok && dir != "" {
+				p.skillsDir = filepath.Join(dir, "skills")
+			}
+		}
+	}
+	if p.skillsDir == "" {
+		p.skillsDir = filepath.Join("data", "skills")
+	}
+	if p.simulatorDir == "" {
+		p.simulatorDir = filepath.Join(p.skillsDir, ".simulator")
+	}
 
 	// Launch OC plugin manager first (handles OC-format plugin installation and lifecycle)
 	os.MkdirAll(p.skillsDir, 0755)
@@ -283,7 +290,7 @@ func (p *Plugin) launchManager(s *sdk.PluginSDK) error {
 	// Ensure skills dir exists for the manager to scan
 	os.MkdirAll(p.skillsDir, 0755)
 
-	sp, err := launchProcess("node", managerPath, p.skillsDir, "manager")
+	sp, err := launchProcess("node", managerPath, p.skillsDir, "manager", p.simulatorDir)
 	if err != nil {
 		return fmt.Errorf("launch manager: %w", err)
 	}
@@ -775,7 +782,7 @@ func (p *Plugin) loadPySidecar(s *sdk.PluginSDK, dir, name string) error {
 		}
 	}
 
-	sp, err := launchProcess(pythonBin, simPath, dir, name)
+	sp, err := launchProcess(pythonBin, simPath, dir, name, p.simulatorDir)
 	if err != nil {
 		return fmt.Errorf("launch pysimulator: %w", err)
 	}
@@ -808,7 +815,7 @@ func (p *Plugin) loadPySidecar(s *sdk.PluginSDK, dir, name string) error {
 }
 
 func (p *Plugin) loadSidecar(s *sdk.PluginSDK, dir, name string) error {
-	sp, err := launchSidecar(dir, name)
+	sp, err := launchSidecar(dir, name, p.simulatorDir)
 	if err != nil {
 		return fmt.Errorf("launch: %w", err)
 	}

internal/plugins/clawhubadapter/sidecar.go

@@ -143,15 +143,15 @@ func (s *sidecarProcess) NotifyChan() <-chan OCNotification {
 	return s.notifyCh
 }
 
-func launchSidecar(dir, name string) (*sidecarProcess, error) {
+func launchSidecar(dir, name, simDir string) (*sidecarProcess, error) {
 	mainJS := filepath.Join(dir, "main.js")
 	if _, err := os.Stat(mainJS); os.IsNotExist(err) {
 		return nil, nil
 	}
-	return launchProcess("node", mainJS, dir, name)
+	return launchProcess("node", mainJS, dir, name, simDir)
 }
 
-func launchProcess(bin, arg, dir, name string) (*sidecarProcess, error) {
+func launchProcess(bin, arg, dir, name, simDir string) (*sidecarProcess, error) {
 	nodePath := bin
 	if bin == "node" {
 		if p := os.Getenv("NODE_PATH"); p != "" {
@@ -164,8 +164,8 @@ func launchProcess(bin, arg, dir, name string) (*sidecarProcess, error) {
 	cmd.Stderr = os.Stderr
 
 	// Add openclaw CLI bin dir to PATH so subprocesses can exec 'openclaw' command
-	if SimulatorDir != "" {
-		binDir := filepath.Join(SimulatorDir, "bin")
+	if simDir != "" {
+		binDir := filepath.Join(simDir, "bin")
 		if info, err := os.Stat(binDir); err == nil && info.IsDir() {
 			env := os.Environ()
 			binDirPath := binDir + string(os.PathListSeparator)

internal/plugins/clawhubadapter/sidecar_test.go

@@ -26,10 +26,12 @@ func (m *mockSettings) RegisterDef(def pubsdk.ConfigDef) {}
 func (m *mockSettings) Defs(prefix string) []*pubsdk.ConfigDef { return nil }
 func (m *mockSettings) Dump() map[string]interface{} { return nil }
 func (m *mockSettings) Plugins() []string { return nil }
+func (m *mockSettings) DefsCore(prefix string) []*sdk.ConfigDef { return nil }
+func (m *mockSettings) DefsPlugin(plugin, prefix string) []*sdk.ConfigDef { return nil }
 
 func TestLaunchSidecarNoMainJS(t *testing.T) {
 	tmpDir := t.TempDir()
-	sp, err := launchSidecar(tmpDir, "nonexistent")
+	sp, err := launchSidecar(tmpDir, "nonexistent", "")
 	if err != nil {
 		t.Fatalf("unexpected error: %v", err)
 	}
@@ -50,7 +52,7 @@ func TestLaunchSidecarAndListTools(t *testing.T) {
 		t.Fatalf("write test plugin: %v", err)
 	}
 
-	sp, err := launchSidecar(tmpDir, "echoplugin")
+	sp, err := launchSidecar(tmpDir, "echoplugin", "")
 	if err != nil {
 		t.Fatalf("launch sidecar: %v", err)
 	}
@@ -92,7 +94,7 @@ func TestCallEchoTool(t *testing.T) {
 		t.Fatalf("write test plugin: %v", err)
 	}
 
-	sp, err := launchSidecar(tmpDir, "echoplugin")
+	sp, err := launchSidecar(tmpDir, "echoplugin", "")
 	if err != nil {
 		t.Fatalf("launch sidecar: %v", err)
 	}
@@ -124,7 +126,7 @@ func TestCallAddTool(t *testing.T) {
 		t.Fatalf("write test plugin: %v", err)
 	}
 
-	sp, err := launchSidecar(tmpDir, "echoplugin")
+	sp, err := launchSidecar(tmpDir, "echoplugin", "")
 	if err != nil {
 		t.Fatalf("launch sidecar: %v", err)
 	}
@@ -157,7 +159,7 @@ func TestCallNonexistentTool(t *testing.T) {
 		t.Fatalf("write test plugin: %v", err)
 	}
 
-	sp, err := launchSidecar(tmpDir, "echoplugin")
+	sp, err := launchSidecar(tmpDir, "echoplugin", "")
 	if err != nil {
 		t.Fatalf("launch sidecar: %v", err)
 	}
@@ -182,7 +184,7 @@ func TestConcurrentCalls(t *testing.T) {
 		t.Fatalf("write test plugin: %v", err)
 	}
 
-	sp, err := launchSidecar(tmpDir, "echoplugin")
+	sp, err := launchSidecar(tmpDir, "echoplugin", "")
 	if err != nil {
 		t.Fatalf("launch sidecar: %v", err)
 	}
@@ -217,7 +219,7 @@ func launchSimulator(t *testing.T, pluginDir, name string) *sidecarProcess {
 	if err != nil {
 		t.Fatalf("abs simulator path: %v", err)
 	}
-	sp, err := launchProcess("node", simPath, pluginDir, name)
+	sp, err := launchProcess("node", simPath, pluginDir, name, "")
 	if err != nil {
 		t.Fatalf("launch simulator for %s: %v", name, err)
 	}
@@ -338,8 +340,6 @@ func TestLoadOCPluginViaPluginStart(t *testing.T) {
 		}
 	}
 
-	SimulatorDir = filepath.Join(t.TempDir(), ".simulator")
-
 	p := New("openclaw", skillsDir)
 
 	var registeredTools []string