feat: cc-hook v1.0 - Claude Code 钩子服务

- Go HTTP 服务，监听 :8082
- 支持 Notification 和 Stop 事件
- 转发至 Gotify 推送通知
- Docker 多阶段构建
- 环境变量配置
- 详细中文 README 文档

handler.go

@@ -0,0 +1,106 @@
+package main
+
+import (
+	"encoding/json"
+	"fmt"
+	"log"
+	"net/http"
+)
+
+// ClaudeCodeHookEvent represents the JSON payload from Claude Code hooks
+type ClaudeCodeHookEvent struct {
+	SessionID     string                 `json:"session_id"`
+	CWD           string                 `json:"cwd"`
+	HookEventName string                 `json:"hook_event_name"`
+	ToolName      string                 `json:"tool_name,omitempty"`
+	ToolInput     map[string]interface{} `json:"tool_input,omitempty"`
+	Matcher       string                 `json:"matcher,omitempty"`
+	StopHookActive bool                  `json:"stop_hook_active,omitempty"`
+}
+
+type HookHandler struct {
+	config Config
+}
+
+func NewHookHandler(config Config) *HookHandler {
+	return &HookHandler{config: config}
+}
+
+func (h *HookHandler) HandleHook(w http.ResponseWriter, r *http.Request) {
+	if r.Method != http.MethodPost {
+		http.Error(w, "method not allowed", http.StatusMethodNotAllowed)
+		return
+	}
+
+	var event ClaudeCodeHookEvent
+	if err := json.NewDecoder(r.Body).Decode(&event); err != nil {
+		log.Printf("failed to decode hook event: %v", err)
+		http.Error(w, "bad request", http.StatusBadRequest)
+		return
+	}
+
+	log.Printf("received hook: event=%s, matcher=%s", event.HookEventName, event.Matcher)
+
+	var title, message string
+	var priority int
+
+	switch event.HookEventName {
+	case "Notification":
+		title, message, priority = h.handleNotification(event)
+	case "Stop":
+		title, message, priority = h.handleStop(event)
+	default:
+		log.Printf("ignored event: %s", event.HookEventName)
+		w.WriteHeader(http.StatusOK)
+		fmt.Fprintf(w, `{"status":"ignored"}`)
+		return
+	}
+
+	if err := SendMessage(h.config.GotifyURL, h.config.GotifyToken, title, message, priority); err != nil {
+		log.Printf("failed to send gotify message: %v", err)
+		http.Error(w, "internal error", http.StatusInternalServerError)
+		return
+	}
+
+	log.Printf("notification sent: %s", title)
+	w.WriteHeader(http.StatusOK)
+	fmt.Fprintf(w, `{"status":"ok"}`)
+}
+
+func (h *HookHandler) handleNotification(event ClaudeCodeHookEvent) (title, message string, priority int) {
+	switch event.Matcher {
+	case "permission_prompt":
+		title = "Claude Code - 需要权限"
+		message = "Claude 需要你批准一个操作"
+		priority = 7
+	case "idle_prompt":
+		title = "Claude Code - 等待输入"
+		message = "Claude 完成工作，等待你的下一步指令"
+		priority = 5
+	case "auth_success":
+		title = "Claude Code - 认证成功"
+		message = "身份验证完成"
+		priority = 3
+	default:
+		title = "Claude Code - 通知"
+		message = "Claude Code 需要你的关注"
+		priority = 5
+	}
+
+	return title, message, priority
+}
+
+func (h *HookHandler) handleStop(event ClaudeCodeHookEvent) (title, message string, priority int) {
+	if event.StopHookActive {
+		// Avoid infinite loop: Stop hook triggered too many times
+		title = "Claude Code - 循环停止"
+		message = "Stop hook 连续触发多次，已自动停止"
+		priority = 8
+	} else {
+		title = "Claude Code - 任务完成"
+		message = "Claude 完成了本轮回复"
+		priority = 5
+	}
+
+	return title, message, priority
+}