feat(watchdog): improve watchdog instance tracking

- Add Close() function to watchdog for graceful shutdown
- Update instance message format for better consistency
- Add watchdog status tracking in StatusInfo
- Include watchdog field in FrpcInstance struct and database
- Change port fields from string to int in FrpcProxyInfo
- Add auth_token support in InstanceInfo

frpAct.go

@@ -10,6 +10,7 @@ import (
 	"path/filepath"
 	"strconv"
 	"super-frpc/postLog"
+	"super-frpc/watchdog"
 	"time"
 )
 
@@ -123,6 +124,7 @@ func CreateInstanceHandler(w http.ResponseWriter, r *http.Request) {
 		BootAtStart: req.BootAtStart,
 		RunUser:     runUser,
 		ConfigPath:  configPath,
+		Watchdog:    0,
 	}
 
 	if err := DBAddFrpcInstance(instance); err != nil {
@@ -459,7 +461,7 @@ func handleSystemConfigModify(w http.ResponseWriter, r *http.Request, instance F
 
 func GetUserInstances(userID int) ([]FrpcInstance, error) {
 	rows, err := frpcDB.Query(`
-		SELECT id, userID, name, bootAtStart, runUser, configPath, createdAt
+		SELECT id, userID, name, bootAtStart, runUser, configPath, createdAt, watchdog
 		FROM frpcInstances WHERE userID = ?
 	`, userID)
 	if err != nil {
@@ -472,7 +474,7 @@ func GetUserInstances(userID int) ([]FrpcInstance, error) {
 		var instance FrpcInstance
 		var createdAtStr string
 		if err := rows.Scan(
-			&instance.ID, &instance.UserID, &instance.Name, &instance.BootAtStart, &instance.RunUser, &instance.ConfigPath, &createdAtStr,
+			&instance.ID, &instance.UserID, &instance.Name, &instance.BootAtStart, &instance.RunUser, &instance.ConfigPath, &createdAtStr, &instance.Watchdog,
 		); err != nil {
 			return nil, err
 		}
@@ -490,6 +492,16 @@ func getStringFromMap(m map[string]interface{}, key string) string {
 	return ""
 }
 
+func getNumFromMap(m map[string]interface{}, key string) int {
+	if v, ok := m[key].(int); ok {
+		return v
+	}
+	if v, ok := m[key].(float64); ok {
+		return int(v)
+	}
+	return 0
+}
+
 func ListInstancesHandler(w http.ResponseWriter, r *http.Request) {
 	userID, err := Auth(w, r, http.MethodGet)
 	if err != nil {
@@ -583,7 +595,7 @@ func StartInstanceHandler(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
-	switch initType {
+	switch initType { // Lunch frpc instance by init system
 	case "windows":
 		if err := StartWindowsService(serviceName); err != nil {
 			postLog.Error(fmt.Sprintf("[StartInstanceHandler] Failed to start Windows service %s: %v", serviceName, err))
@@ -591,7 +603,6 @@ func StartInstanceHandler(w http.ResponseWriter, r *http.Request) {
 			return
 		}
 		postLog.Info(fmt.Sprintf("[StartInstanceHandler] Windows service %s started successfully", serviceName))
-		SendSuccessResponse(w, "Instance started successfully", nil)
 
 	case "systemd":
 		if err := StartSystemdService(serviceName); err != nil {
@@ -600,7 +611,6 @@ func StartInstanceHandler(w http.ResponseWriter, r *http.Request) {
 			return
 		}
 		postLog.Info(fmt.Sprintf("[StartInstanceHandler] Systemd service %s started successfully", serviceName))
-		SendSuccessResponse(w, "Instance started successfully", nil)
 
 	case "init.d":
 		if err := StartInitDService(serviceName); err != nil {
@@ -609,13 +619,18 @@ func StartInstanceHandler(w http.ResponseWriter, r *http.Request) {
 			return
 		}
 		postLog.Info(fmt.Sprintf("[StartInstanceHandler] Init.d service %s started successfully", serviceName))
-		SendSuccessResponse(w, "Instance started successfully", nil)
 
 	default:
 		postLog.Error(fmt.Sprintf("[StartInstanceHandler] Unsupported init system: %s", initType))
 		SendErrorResponse(w, http.StatusInternalServerError, fmt.Sprintf("Unsupported init system: %s", initType))
 		return
 	}
+
+	if is.watchdogConnected {
+		watchdog.AddInstance(serviceName)
+	}
+
+	SendSuccessResponse(w, "Instance started successfully", nil)
 }
 
 func StopInstanceHandler(w http.ResponseWriter, r *http.Request) {