refactor: strengthen architecture CI gates and runtime contracts

app/api/endpoints/openai.py

@@ -8,6 +8,23 @@ from fastapi import APIRouter, Depends, Request, Security
 from fastapi.responses import JSONResponse
 from fastapi.security import HTTPAuthorizationCredentials
 
+from app.adapters.web.security.access import openai_bearer_scheme
+from app.agent.contracts import ReplyMode
+from app.agent.runtime_loader import get_moviepilot_agent_type
+from app.api.context import (
+    get_background_task_registry_compat,
+    resolve_background_task_registry,
+)
+from app.api.openai_utils import (
+    build_completion_payload,
+    build_prompt,
+    build_responses_input,
+    build_session_id,
+)
+from app.api.presentation.sse import build_sse_response, encode_data_event
+from app.application.agent import get_running_agent_manager
+from app.application.configuration import get_api_runtime_config_snapshot
+from app.runtime.tasks import TaskRegistry
 from app.schemas.openai import OpenAIChatCompletionResponse as _SchemaOpenAIChatCompletionResponse
 from app.schemas.openai import OpenAIChatCompletionsRequest as _SchemaOpenAIChatCompletionsRequest
 from app.schemas.openai import OpenAIErrorDetail as _SchemaOpenAIErrorDetail
@@ -19,24 +36,7 @@ from app.schemas.openai import OpenAIResponsesOutputText as _SchemaOpenAIRespons
 from app.schemas.openai import OpenAIResponsesRequest as _SchemaOpenAIResponsesRequest
 from app.schemas.openai import OpenAIResponsesResponse as _SchemaOpenAIResponsesResponse
 from app.schemas.openai import OpenAIUsage as _SchemaOpenAIUsage
-from app.api.openai_utils import (
-    build_completion_payload,
-    build_prompt,
-    build_responses_input,
-    build_session_id,
-)
-from app.api.presentation.sse import build_sse_response, encode_data_event
-from app.agent.runtime_loader import get_moviepilot_agent_type
-from app.application.agent import get_running_agent_manager
-from app.agent.contracts import ReplyMode
-from app.application.configuration import get_api_runtime_config_snapshot
-from app.adapters.web.security.access import openai_bearer_scheme
 from app.schemas.types import NotificationChannel
-from app.api.context import (
-    get_background_task_registry_compat,
-    resolve_background_task_registry,
-)
-from app.runtime.tasks import TaskRegistry
 
 OPENAI_ERROR_RESPONSES = {
     400: {"model": _SchemaOpenAIErrorResponse, "description": "请求格式错误"},