feat(wizard): streamline custom model onboarding

src/langbot/pkg/api/http/controller/groups/pipelines/pipelines.py

@@ -39,7 +39,13 @@ class PipelinesRouterGroup(group.RouterGroup):
             permission=Permission.RESOURCE_MANAGE,
         )
         async def _(request_context: RequestContext) -> str:
-            pipeline_uuid = await self.ap.pipeline_service.create_pipeline(request_context, await quart.request.json)
+            pipeline_data = await quart.request.json
+            create_as_default = pipeline_data.get('is_default') is True
+            pipeline_uuid = await self.ap.pipeline_service.create_pipeline(
+                request_context,
+                pipeline_data,
+                default=create_as_default,
+            )
             return self.success(data={'uuid': pipeline_uuid})
 
         @self.route(

src/langbot/pkg/api/mcp/server.py

@@ -147,7 +147,16 @@ class LangBotMCPServer:
         )
         async def create_pipeline(pipeline_data: dict) -> str:
             context = _authorized(Permission.RESOURCE_MANAGE)
-            return _dump({'uuid': await ap.pipeline_service.create_pipeline(context, pipeline_data)})
+            create_as_default = pipeline_data.get('is_default') is True
+            return _dump(
+                {
+                    'uuid': await ap.pipeline_service.create_pipeline(
+                        context,
+                        pipeline_data,
+                        default=create_as_default,
+                    )
+                }
+            )
 
         @mcp.tool(description='Update a pipeline by UUID. `pipeline_data` matches the PUT body.')
         async def update_pipeline(pipeline_uuid: str, pipeline_data: dict) -> str: