refactor(BA-5836): rename extra_config -> config across DTOs / service / adapter

Propagate the BA-5827 column rename through the service vertical:
the bulk-mutation DTOs, the service's bulk methods, the bulk-item
data classes, the adapter's data-to-DTO mapping, and the bulk-error
field all now reference `config` instead of `extra_config`. Tracks
the underlying JSONB column name for naming consistency end-to-end.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: jopemachine

src/ai/backend/common/dto/manager/v2/app_config_fragment/request.py

@@ -63,7 +63,7 @@ class AdminAppConfigFragmentItemInput(BaseRequestModel):
     """Per-item input for admin bulk create / update (natural key + payload)."""
 
     key: AppConfigFragmentKeyInput = Field(description="Natural-key identifier.")
-    extra_config: dict[str, Any] = Field(
+    config: dict[str, Any] = Field(
         default_factory=dict,
         description="Raw configuration payload (empty dict clears the row).",
     )
@@ -87,7 +87,7 @@ class MyAppConfigFragmentItemInput(BaseRequestModel):
     """
 
     name: str = Field(description="Policy name.")
-    extra_config: dict[str, Any] = Field(
+    config: dict[str, Any] = Field(
         default_factory=dict,
         description="Raw configuration payload (empty dict clears the row).",
     )

src/ai/backend/common/dto/manager/v2/app_config_fragment/response.py

@@ -33,7 +33,7 @@ class AppConfigFragmentNode(BaseResponseModel):
     scope_type: AppConfigScopeType = Field(description="Scope type.")
     scope_id: str = Field(description="Scope id.")
     name: str = Field(description="Policy name (FK target).")
-    extra_config: dict[str, Any] | None = Field(
+    config: dict[str, Any] | None = Field(
         default=None, description="Raw configuration payload, or null."
     )
     created_at: datetime = Field(description="Creation timestamp.")

src/ai/backend/manager/api/adapters/app_config_fragment.py

@@ -217,7 +217,7 @@ def _data_to_dto(data: AppConfigFragmentData) -> AppConfigFragmentNode:
             scope_type=DTOAppConfigScopeType(data.scope_type.value),
             scope_id=data.scope_id,
             name=data.name,
-            extra_config=dict(data.extra_config) if data.extra_config is not None else None,
+            config=dict(data.config) if data.config is not None else None,
             created_at=data.created_at,
             updated_at=data.updated_at,
         )
@@ -235,7 +235,7 @@ async def admin_bulk_create(
         items = [
             AppConfigFragmentBulkItem(
                 key=self._input_to_key(item.key),
-                extra_config=dict(item.extra_config),
+                config=dict(item.config),
             )
             for item in input.items
         ]
@@ -254,7 +254,7 @@ async def admin_bulk_update(
         items = [
             AppConfigFragmentBulkItem(
                 key=self._input_to_key(item.key),
-                extra_config=dict(item.extra_config),
+                config=dict(item.config),
             )
             for item in input.items
         ]

src/ai/backend/manager/data/app_config_fragment/bulk_types.py

@@ -14,7 +14,7 @@ class AppConfigFragmentBulkItem:
     """One item for `adminBulkCreate/Update` — natural key + payload."""
 
     key: AppConfigFragmentKey
-    extra_config: Mapping[str, Any]
+    config: Mapping[str, Any]
 
 
 @dataclass(frozen=True)
@@ -26,7 +26,7 @@ class MyAppConfigFragmentBulkItem:
     """
 
     name: str
-    extra_config: Mapping[str, Any]
+    config: Mapping[str, Any]
 
 
 @dataclass(frozen=True)

src/ai/backend/manager/services/app_config_fragment/service.py

@@ -101,7 +101,7 @@ async def admin_bulk_create(
         failed: list[AppConfigFragmentBulkItemError] = []
         for index, item in enumerate(action.items):
             try:
-                fragment = await self._admin_repository.create(item.key, item.extra_config)
+                fragment = await self._admin_repository.create(item.key, item.config)
                 created.append(fragment)
             except Exception as e:
                 log.warning("admin_bulk_create item {} failed: {}", index, e)
@@ -125,7 +125,7 @@ async def admin_bulk_update(
         failed: list[AppConfigFragmentBulkItemError] = []
         for index, item in enumerate(action.items):
             try:
-                fragment = await self._admin_repository.update(item.key, item.extra_config)
+                fragment = await self._admin_repository.update(item.key, item.config)
                 updated.append(fragment)
             except Exception as e:
                 log.warning("admin_bulk_update item {} failed: {}", index, e)
@@ -185,7 +185,7 @@ async def my_bulk_create(
                 name=item.name,
             )
             try:
-                await self._admin_repository.create(key, item.extra_config)
+                await self._admin_repository.create(key, item.config)
                 merged = await self._repository.app_config(user_id, item.name)
                 created.append(merged)
             except Exception as e:
@@ -219,7 +219,7 @@ async def my_bulk_update(
                 name=item.name,
             )
             try:
-                await self._admin_repository.update(key, item.extra_config)
+                await self._admin_repository.update(key, item.config)
                 merged = await self._repository.app_config(user_id, item.name)
                 updated.append(merged)
             except Exception as e: