重构: 插件自注册 + .so 动态加载 + 中断打断机制

- 所有内置插件 init() 自注册 (plugin.RegisterFactory), 移除 main.go 硬编码
- 新增 .so 动态加载器 (internal/plugin/dynamic.go), 插件可编译为 plugin.so
- 新增 plugin.json 元数据 (internal/plugin/manifest.go)
- 新增 interceptLoop 独立 goroutine:
  (a) cancelLLM() 取消进行中的 HTTP 请求
  (b) interceptCh → drainInterrupt() 注入 [打断消息] 到 LLM 上下文
  (c) InjectInput 空闲时触发新处理循环
- 新增 internal/plugins/all.go 空白导入触发所有内置插件 init()
- internal/sdk/ 作为 PluginSDK 正式 Go API
- internal/api/ → internal/plugins/webui/ 迁移
- 删除旧 cmd/cli/, 使用 cmd/waiter/ 替代
- 更新 PLAN.md / ARCHITECTURE.md / README.md 文档

internal/plugins/openclaw/plugin.go

@@ -0,0 +1,88 @@
+package openclaw
+
+import (
+	"fmt"
+	"log"
+	"os"
+	"path/filepath"
+
+	"gitcode.com/JianFeeeee/HomeAgent/internal/plugin"
+	sdk "gitcode.com/JianFeeeee/HomeAgent/internal/sdk"
+)
+
+// SkillsDir 由 main.go 在 Load() 前设置，指向 SKILL.md 存放目录。
+var SkillsDir string
+
+func init() {
+	plugin.RegisterFactory("openclaw", func(name string, config map[string]interface{}) (sdk.Plugin, error) {
+		dir := SkillsDir
+		if dir == "" {
+			dir = filepath.Join(config["data_dir"].(string), "skills")
+		}
+		return New(name, dir), nil
+	})
+}
+
+type Plugin struct {
+	name    string
+	skillsDir string
+	skills  []*plugin.SKILLPlugin
+}
+
+func New(name, skillsDir string) *Plugin {
+	return &Plugin{
+		name:      name,
+		skillsDir: skillsDir,
+	}
+}
+
+func (p *Plugin) Name() string { return p.name }
+
+func (p *Plugin) Start(s *sdk.PluginSDK) error {
+	entries, err := os.ReadDir(p.skillsDir)
+	if err != nil {
+		if os.IsNotExist(err) {
+			return nil
+		}
+		return fmt.Errorf("read skills dir %s: %w", p.skillsDir, err)
+	}
+
+	for _, entry := range entries {
+		skillPath := filepath.Join(p.skillsDir, entry.Name())
+		sk, err := plugin.LoadSKILL(skillPath)
+		if err != nil {
+			log.Printf("[openclaw] load skill %s: %v", entry.Name(), err)
+			continue
+		}
+		p.skills = append(p.skills, sk)
+
+		// Register each tool defined in the SKILL
+		for _, td := range sk.Tools() {
+			name := td.Name
+			def := sdk.ToolDef{
+				Name:        name,
+				Description: td.Description,
+				Parameters:  td.Parameters,
+			}
+			// SKILL tools are informational (advisory) — no handler
+			if err := s.RegisterTool(name, def, nil); err != nil {
+				log.Printf("[openclaw] register tool %s: %v", name, err)
+			}
+		}
+
+		// Register IO config as a channel if defined
+		if iocfg := sk.IOConfig(); iocfg != nil {
+			log.Printf("[openclaw] skill %s io: type=%s in=%s out=%s caps=%v",
+				sk.Name(), iocfg.Type, iocfg.InputRoute, iocfg.OutputRoute, iocfg.OutputCaps)
+		}
+
+		log.Printf("[openclaw] loaded skill: %s v%s", sk.Name(), sk.Version())
+	}
+
+	return nil
+}
+
+func (p *Plugin) Stop() error {
+	p.skills = nil
+	return nil
+}