同步上游v0.1.74并禁用更新模块显示和后台检查

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

backend/internal/handler/admin/system_handler.go

@@ -35,13 +35,13 @@ func (h *SystemHandler) GetVersion(c *gin.Context) {
 // CheckUpdates checks for available updates
 // GET /api/v1/admin/system/check-updates
 func (h *SystemHandler) CheckUpdates(c *gin.Context) {
-	force := c.Query("force") == "true"
-	info, err := h.updateSvc.CheckUpdate(c.Request.Context(), force)
-	if err != nil {
-		response.Error(c, http.StatusInternalServerError, err.Error())
-		return
-	}
-	response.Success(c, info)
+	info, _ := h.updateSvc.CheckUpdate(c.Request.Context(), false)
+	response.Success(c, gin.H{
+		"current_version": info.CurrentVersion,
+		"latest_version":  info.CurrentVersion,
+		"has_update":      false,
+		"build_type":      "source",
+	})
 }
 
 // PerformUpdate downloads and applies the update