feat: complete HomeAgent architecture v2

- IO abstraction layer with OutputChannel routing and capability validation
- Three-layer memory (Context-Document-Graph) with TF-IDF relevance pruning
- OneBot V11 QQ protocol plugin with Reverse WebSocket client
- Plugin system with hot-reload (SKILL.md + native factories)
- Knowledge system with TF-IDF vector indexing
- Personality system (personal.md)
- Text memory (JSONL with rotation)
- Change tracker (overlayfs) with rollback
- Lua adapter VM
- Design document (DESIGN.md)

Module: gitcode.com/JianFeeeee/HomeAgent

internal/onebot/types.go

@@ -0,0 +1,94 @@
+// Package onebot 实现 OneBot V11 标准协议（Reverse WebSocket 通信）
+// 参考: https://github.com/botuniverse/onebot-11
+package onebot
+
+import "fmt"
+
+// Action 是 OneBot 标准 API 请求
+type Action struct {
+	Action string                 `json:"action"`
+	Params map[string]interface{} `json:"params,omitempty"`
+	Echo   string                 `json:"echo,omitempty"`
+}
+
+// ActionResponse 是 OneBot 标准 API 响应
+type ActionResponse struct {
+	Status  string      `json:"status"`
+	RetCode int         `json:"retcode"`
+	Data    interface{} `json:"data"`
+	Echo    string      `json:"echo,omitempty"`
+}
+
+// Event 是 OneBot 推送的事件
+type Event struct {
+	Time       int64  `json:"time"`
+	SelfID     int64  `json:"self_id"`
+	PostType   string `json:"post_type"` // message, notice, request, meta_event
+	DetailType string `json:"-"`
+
+	// 消息事件字段
+	MessageType string      `json:"message_type,omitempty"` // private, group
+	SubType     string      `json:"sub_type,omitempty"`
+	MessageID   int64       `json:"message_id,omitempty"`
+	UserID      int64       `json:"user_id,omitempty"`
+	GroupID     int64       `json:"group_id,omitempty"`
+	Message     interface{} `json:"message,omitempty"`   // string 或 []MessageSegment
+	RawMessage  string      `json:"raw_message,omitempty"`
+	Font        int         `json:"font,omitempty"`
+	Sender      *Sender     `json:"sender,omitempty"`
+
+	// 通知事件字段
+	NoticeType string `json:"notice_type,omitempty"`
+
+	// 请求事件字段
+	RequestType string `json:"request_type,omitempty"`
+	Flag        string `json:"flag,omitempty"`
+	Comment     string `json:"comment,omitempty"`
+
+	// 元事件字段
+	MetaEventType string `json:"meta_event_type,omitempty"`
+	Interval      int64  `json:"interval,omitempty"`
+	Status        *Status `json:"status,omitempty"`
+}
+
+type Sender struct {
+	UserID   int64  `json:"user_id"`
+	Nickname string `json:"nickname"`
+	Sex      string `json:"sex,omitempty"`
+	Age      int    `json:"age,omitempty"`
+	Card     string `json:"card,omitempty"` // 群名片
+	Area     string `json:"area,omitempty"`
+	Level    string `json:"level,omitempty"`
+	Role     string `json:"role,omitempty"` // owner, admin, member
+	Title    string `json:"title,omitempty"`
+}
+
+type Status struct {
+	AppInitialized bool `json:"app_initialized"`
+	AppEnabled     bool `json:"app_enabled"`
+	PluginsGood    bool `json:"plugins_good"`
+	AppGood        bool `json:"app_good"`
+	Online         bool `json:"online"`
+	Good           bool `json:"good"`
+}
+
+// MessageSegment 表示 OneBot 消息段（数组格式）
+type MessageSegment struct {
+	Type string            `json:"type"`
+	Data map[string]string `json:"data"`
+}
+
+// MessageText 快速构造纯文本消息段
+func MessageText(text string) MessageSegment {
+	return MessageSegment{Type: "text", Data: map[string]string{"text": text}}
+}
+
+// MessageImage 构造图片消息段
+func MessageImage(file string) MessageSegment {
+	return MessageSegment{Type: "image", Data: map[string]string{"file": file}}
+}
+
+// MessageAt 构造 @ 消息段
+func MessageAt(userID int64) MessageSegment {
+	return MessageSegment{Type: "at", Data: map[string]string{"qq": fmt.Sprintf("%d", userID)}}
+}