feat(market): admin用户前台导入的Agent/Skill/MCP自动标记为官方(official)

- POST /market/apps: 当 current_user.role == "admin" 时，source 强制设为 official
- 前端发送 source:/user/ 也会被后端覆盖为 official
- 前台卡片已有 official-badge 徽章展示，无需额外前端改动

backend/python/app/api/market.py

@@ -340,13 +340,22 @@ def upload_app(
                 detail=f"Agent 连接校验未通过：{v['detail']}",
             )
 
+    # source 判定：管理员（admin 角色）通过前台市场导入/开发的 Agent/Skill/MCP
+    # 统一标记为官方（official），其余用户按请求或默认为 user。
+    if current_user.role == "admin":
+        app_source = "official"
+    elif req.source and req.source in ("official", "user"):
+        app_source = req.source
+    else:
+        app_source = "user"
+
     app = MarketApp(
         id=gen_uuid(),
         name=req.name,
         description=req.description,
         icon=req.icon,
         type=req.type if req.type in ("skill","agent","mcp") else "skill",
-        source=req.source if req.source in ("official","user") else "user",
+        source=app_source,
         platform=req.platform,
         price=req.price,
         install_count=0,