feat(quota): implement workspace-level quota enforcement and statistics

- Refactor quota management logic to support usage checks scoped by workspace.
- Update quota statistics API to return granular quota details for each workspace.
- Revise default configuration settings for terminal user and model limits.
- Remove quota check decorators from the model controller.

api/app/controllers/app_controller.py

@@ -1286,7 +1286,7 @@ async def import_app(
     # 仅新建应用时检查配额，覆盖已有应用时跳过
     if target_app_id is None:
         from app.core.quota_manager import _check_quota
-        _check_quota(db, current_user.tenant_id, "app_quota", "app")
+        _check_quota(db, current_user.tenant_id, "app_quota", "app", workspace_id=current_user.current_workspace_id)
     result_app, warnings = AppDslService(db).import_dsl(
         dsl=dsl,
         workspace_id=current_user.current_workspace_id,

api/app/controllers/model_controller.py

@@ -237,7 +237,6 @@ def delete_model_base(
 
 
 @router.post("/model_plaza/{model_base_id}/add", response_model=ApiResponse)
-@check_model_quota
 def add_model_from_plaza(
     model_base_id: uuid.UUID,
     db: Session = Depends(get_db),
@@ -275,7 +274,6 @@ def get_model_by_id(
 
 
 @router.post("", response_model=ApiResponse)
-@check_model_quota
 async def create_model(
     model_data: model_schema.ModelConfigCreate,
     db: Session = Depends(get_db),

api/app/controllers/public_share_controller.py

@@ -228,7 +228,7 @@ def list_conversations(
         from app.models.workspace_model import Workspace
         ws = db.query(Workspace).filter(Workspace.id == workspace_id).first()
         if ws:
-            _check_quota(db, ws.tenant_id, "end_user_quota", "end_user")
+            _check_quota(db, ws.tenant_id, "end_user_quota", "end_user", workspace_id=workspace_id)
 
     new_end_user = end_user_repo.get_or_create_end_user(
         app_id=share.app_id,
@@ -370,7 +370,7 @@ async def chat(
             ws = db.query(Workspace).filter(Workspace.id == workspace_id).first()
             if ws:
                 logger.info(f"新终端用户，执行配额检查: tenant_id={ws.tenant_id}")
-                _check_quota(db, ws.tenant_id, "end_user_quota", "end_user")
+                _check_quota(db, ws.tenant_id, "end_user_quota", "end_user", workspace_id=workspace_id)
 
         new_end_user = end_user_repo.get_or_create_end_user(
             app_id=share.app_id,

api/app/controllers/service/app_api_controller.py

@@ -114,7 +114,7 @@ async def chat(
         from app.models.workspace_model import Workspace
         ws = db.query(Workspace).filter(Workspace.id == workspace_id).first()
         if ws:
-            _check_quota(db, ws.tenant_id, "end_user_quota", "end_user")
+            _check_quota(db, ws.tenant_id, "end_user_quota", "end_user", workspace_id=workspace_id)
 
     new_end_user = end_user_repo.get_or_create_end_user(
         app_id=app.id,