Refactor: move exceptions to common folder (#10383)

### What problem does this PR solve?

as title

### Type of change

- [x] Refactoring

Signed-off-by: Jin Hai <haijin.chn@gmail.com>

admin/auth.py

@@ -3,7 +3,7 @@ import uuid
 from functools import wraps
 from flask import request, jsonify
 
-from exceptions import AdminException
+from api.common.exceptions import AdminException
 from api.db.init_data import encode_to_base64
 from api.db.services import UserService
 

admin/exceptions.py

@@ -1,17 +0,0 @@
-class AdminException(Exception):
-    def __init__(self, message, code=400):
-        super().__init__(message)
-        self.code = code
-        self.message = message
-
-class UserNotFoundError(AdminException):
-    def __init__(self, username):
-        super().__init__(f"User '{username}' not found", 404)
-
-class UserAlreadyExistsError(AdminException):
-    def __init__(self, username):
-        super().__init__(f"User '{username}' already exists", 409)
-
-class CannotDeleteAdminError(AdminException):
-    def __init__(self):
-        super().__init__("Cannot delete admin account", 403)

admin/routes.py

@@ -3,7 +3,7 @@ from flask import Blueprint, request
 from auth import login_verify
 from responses import success_response, error_response
 from services import UserMgr, ServiceMgr, UserServiceMgr
-from exceptions import AdminException
+from api.common.exceptions import AdminException
 
 admin_bp = Blueprint('admin', __name__, url_prefix='/api/v1/admin')
 

admin/services.py

@@ -7,7 +7,7 @@ from api.db.services.canvas_service import UserCanvasService
 from api.db.services.user_service import TenantService
 from api.db.services.knowledgebase_service import KnowledgebaseService
 from api.utils.crypt import decrypt
-from exceptions import AdminException, UserAlreadyExistsError, UserNotFoundError
+from api.common.exceptions import AdminException, UserAlreadyExistsError, UserNotFoundError
 from config import SERVICE_CONFIGS
 
 class UserMgr: