refactor(api): tighten types for Tenant.custom_config_dict and MCPToolProvider.headers (#34698)

api/core/plugin/entities/__init__.py

@@ -0,0 +1,5 @@
+from core.plugin.entities.oauth import OAuthSchema
+
+__all__ = [
+    "OAuthSchema",
+]

api/core/plugin/entities/oauth.py

@@ -1,5 +1,3 @@
-from collections.abc import Sequence
-
 from pydantic import BaseModel, Field
 
 from core.entities.provider_entities import ProviderConfig
@@ -10,12 +8,12 @@ class OAuthSchema(BaseModel):
     OAuth schema
     """
 
-    client_schema: Sequence[ProviderConfig] = Field(
+    client_schema: list[ProviderConfig] = Field(
         default_factory=list,
         description="client schema like client_id, client_secret, etc.",
     )
 
-    credentials_schema: Sequence[ProviderConfig] = Field(
+    credentials_schema: list[ProviderConfig] = Field(
         default_factory=list,
         description="credentials schema like access_token, refresh_token, etc.",
     )