feat(quota management): add end-user quota check for shared conversations

fix(default free plan): adjust free plan quota limits

feat(application service): add functionality to reset Agent model parameters to default values

api/app/config/default_free_plan.py

@@ -22,14 +22,14 @@ DEFAULT_FREE_PLAN = {
     "page_customization_en": "None",
     "theme_color": "#64748B",
     "quotas": {
-        "workspace_quota": 1,
+        "workspace_quota": 10,
-        "skill_quota": 5,
+        "skill_quota": 50,
-        "app_quota": 2,
+        "app_quota": 20,
-        "knowledge_capacity_quota": 0.3,
+        "knowledge_capacity_quota": 30,
-        "memory_engine_quota": 1,
+        "memory_engine_quota": 10,
-        "end_user_quota": 1,
+        "end_user_quota": 50,
-        "ontology_project_quota": 3,
+        "ontology_project_quota": 30,
-        "model_quota": 1,
+        "model_quota": 10,
         "api_ops_rate_limit": 50,
     },
 }

api/app/controllers/app_controller.py

@@ -271,6 +271,20 @@ def update_agent_config(
     return success(data=app_schema.AgentConfig.model_validate(cfg))
 
 
+@router.post("/{app_id}/config/reset", summary="重置 Agent 配置为默认状态")
+@cur_workspace_access_guard()
+def reset_agent_config(
+        app_id: uuid.UUID,
+        db: Session = Depends(get_db),
+        current_user=Depends(get_current_user),
+):
+    workspace_id = current_user.current_workspace_id
+    service = AppService(db)
+    cfg = service.reset_agent_config(app_id=app_id, workspace_id=workspace_id)
+    cfg = enrich_agent_config(cfg)
+    return success(data=app_schema.AgentConfig.model_validate(cfg), msg="Agent 配置已重置为默认状态")
+
+
 @router.get("/{app_id}/config", summary="获取 Agent 配置")
 @cur_workspace_access_guard()
 def get_agent_config(

api/app/controllers/public_share_controller.py

@@ -10,6 +10,7 @@ from sqlalchemy.orm import Session
 from app.core.error_codes import BizCode
 from app.core.exceptions import BusinessException
 from app.core.logging_config import get_business_logger
+from app.core.quota_manager import check_end_user_quota
 from app.core.response_utils import success, fail
 from app.db import get_db, get_db_read
 from app.dependencies import get_share_user_id, ShareTokenData
@@ -308,6 +309,7 @@ def get_conversation(
     "/chat",
     summary="发送消息（支持流式和非流式）"
 )
+@check_end_user_quota
 async def chat(
         payload: conversation_schema.ChatRequest,
         share_data: ShareTokenData = Depends(get_share_user_id),

api/app/core/quota_manager.py

@@ -55,6 +55,18 @@ def _get_tenant_id_from_kwargs(db: Session, kwargs: dict):
         if workspace:
             return workspace.tenant_id
 
+    share_data = kwargs.get("share_data")
+    if share_data and hasattr(share_data, 'share_token'):
+        from app.models.workspace_model import Workspace
+        from app.models.app_model import App
+        share_token = share_data.share_token
+        from app.models.release_share_model import ReleaseShare
+        share_record = db.query(ReleaseShare).filter(ReleaseShare.share_token == share_token).first()
+        if share_record:
+            app = db.query(App).filter(App.id == share_record.app_id, App.is_active.is_(True)).first()
+            if app:
+                return app.workspace.tenant_id
+
     return None
 
 

api/app/services/app_service.py

@@ -1452,6 +1452,67 @@ class AppService:
         logger.debug("配置不存在，返回默认模板", extra={"app_id": str(app_id)})
         return self._create_default_agent_config(app_id)
 
+    def reset_agent_config(
+            self,
+            *,
+            app_id: uuid.UUID,
+            workspace_id: Optional[uuid.UUID] = None
+    ) -> AgentConfig:
+        """仅将 Agent 模型参数重置为默认值（不影响其他配置）
+
+        Args:
+            app_id: 应用ID
+            workspace_id: 工作空间ID（用于权限验证）
+
+        Returns:
+            AgentConfig: 重置后的配置对象
+        """
+        logger.info("重置 Agent 模型参数为默认值", extra={"app_id": str(app_id)})
+
+        app = self._get_app_or_404(app_id)
+
+        if app.type != "agent":
+            raise BusinessException("只有 Agent 类型应用支持 Agent 配置", BizCode.APP_TYPE_NOT_SUPPORTED)
+
+        self._validate_app_writable(app, workspace_id)
+
+        stmt = select(AgentConfig).where(AgentConfig.app_id == app_id, AgentConfig.is_active.is_(True)).order_by(
+            AgentConfig.updated_at.desc())
+        agent_cfg: Optional[AgentConfig] = self.db.scalars(stmt).first()
+        now = datetime.datetime.now()
+
+        default_model_parameters = {
+            "temperature": 0.7,
+            "max_tokens": 2000,
+            "top_p": 1.0,
+            "frequency_penalty": 0.0,
+            "presence_penalty": 0.0,
+            "n": 1,
+            "stop": None
+        }
+
+        if agent_cfg:
+            agent_cfg.default_model_config_id = None
+            agent_cfg.model_parameters = default_model_parameters
+            agent_cfg.updated_at = now
+        else:
+            agent_cfg = AgentConfig(
+                id=uuid.uuid4(),
+                app_id=app_id,
+                default_model_config_id=None,
+                model_parameters=default_model_parameters,
+                is_active=True,
+                created_at=now,
+                updated_at=now,
+            )
+            self.db.add(agent_cfg)
+
+        self.db.commit()
+        self.db.refresh(agent_cfg)
+
+        logger.info("Agent 模型参数重置成功", extra={"app_id": str(app_id)})
+        return agent_cfg
+
     def _create_default_agent_config(self, app_id: uuid.UUID) -> AgentConfig:
         """创建默认的 Agent 配置模板（不保存到数据库）