feat(provider,adapter): Codex 默认 body_rules 按 provider_type 维度注册，adapter 全链路传递 provider_type

- 新增 register_provider_default_body_rules 注册机制，将 Codex 特有的
  body_rules 从 EndpointDefinition 全局默认移至 codex plugin 按
  (provider_type, endpoint_sig) 维度注册
- handler adapter 的 build_endpoint_url/build_request_body/get_cli_extra_headers
  增加 provider_type 参数，Codex 判断优先使用 provider_type 而非 URL 匹配
- 前端 getDefaultBodyRules API 支持 provider_type 参数，缓存 key 区分不同
  provider 类型；Codex 路径判断同样优先使用 provider_type
- ProviderDetailDrawer 将 mapping-preview 拆为独立加载，不阻塞首屏渲染
- PoolManagement 补全 KeyFormDialog 缺失的 endpoint/available-api-formats props
- 固定类型 Provider 创建时自动填充 provider-scoped 默认 body_rules

src/api/admin/endpoints/routes.py

@@ -141,10 +141,13 @@ async def create_provider_endpoint(
 async def get_default_endpoint_body_rules(
     api_format: str,
     request: Request,
+    provider_type: str | None = None,
     db: Session = Depends(get_db),
 ) -> dict[str, Any]:
     """获取指定 endpoint signature 的默认 body_rules。"""
-    adapter = AdminGetDefaultBodyRulesAdapter(api_format=api_format)
+    adapter = AdminGetDefaultBodyRulesAdapter(
+        api_format=api_format, provider_type=provider_type or None
+    )
     return await pipeline.run(adapter=adapter, http_request=request, db=db, mode=adapter.mode)
 
 
@@ -308,7 +311,7 @@ class AdminCreateProviderEndpointAdapter(AdminApiAdapter):
             raise NotFoundException(f"Provider {self.provider_id} 不存在")
 
         # 固定类型 Provider：禁止通过该接口新增 Endpoints（端点由模板自动创建并锁定）
-        provider_type = getattr(provider, "provider_type", "custom")
+        provider_type = getattr(provider, "provider_type", None) or "custom"
         if _is_fixed_provider(provider_type):
             raise InvalidRequestException("固定类型 Provider 不允许手动新增 Endpoint")
 
@@ -338,7 +341,12 @@ class AdminCreateProviderEndpointAdapter(AdminApiAdapter):
         normalized_api_format = sig.key
         body_rules = self.endpoint_data.body_rules
         if body_rules is None:
-            body_rules = get_default_body_rules_for_endpoint(normalized_api_format) or None
+            body_rules = (
+                get_default_body_rules_for_endpoint(
+                    normalized_api_format, provider_type=provider_type
+                )
+                or None
+            )
 
         new_endpoint = ProviderEndpoint(
             id=str(uuid.uuid4()),
@@ -613,6 +621,7 @@ class AdminDeleteProviderEndpointAdapter(AdminApiAdapter):
 @dataclass
 class AdminGetDefaultBodyRulesAdapter(AdminApiAdapter):
     api_format: str
+    provider_type: str | None = None
 
     async def handle(self, context: ApiRequestContext) -> Any:  # type: ignore[override]
         try:
@@ -622,5 +631,7 @@ class AdminGetDefaultBodyRulesAdapter(AdminApiAdapter):
 
         return {
             "api_format": normalized_api_format,
-            "body_rules": get_default_body_rules_for_endpoint(normalized_api_format),
+            "body_rules": get_default_body_rules_for_endpoint(
+                normalized_api_format, provider_type=self.provider_type
+            ),
         }

src/api/admin/providers/routes.py

@@ -489,11 +489,20 @@ class AdminCreateProviderAdapter(AdminApiAdapter):
             # 固定类型 Provider：自动创建并锁定预置 Endpoints（同一事务）
             template = _get_fixed_provider_template(provider.provider_type)
             if template:
+                from src.core.api_format.metadata import get_default_body_rules_for_endpoint
+
                 now = datetime.now(timezone.utc)
                 for sig in template.endpoint_signatures:
                     endpoint_config: dict[str, str] | None = None
                     if provider.provider_type == ProviderType.CODEX.value and sig == "openai:cli":
                         endpoint_config = {"upstream_stream_policy": "force_stream"}
+                    # 获取 provider-scoped 默认 body rules
+                    default_body_rules = (
+                        get_default_body_rules_for_endpoint(
+                            sig, provider_type=provider.provider_type
+                        )
+                        or None
+                    )
                     endpoint = ProviderEndpoint(
                         id=str(uuid.uuid4()),
                         provider_id=provider.id,
@@ -503,6 +512,7 @@ class AdminCreateProviderAdapter(AdminApiAdapter):
                         base_url=template.api_base_url,
                         custom_path=None,
                         header_rules=None,
+                        body_rules=default_body_rules,
                         max_retries=provider.max_retries or 2,
                         is_active=True,
                         config=endpoint_config,