diff --git a/src/langbot/pkg/api/http/controller/main.py b/src/langbot/pkg/api/http/controller/main.py
index b4718443f..e19552c65 100644
--- a/src/langbot/pkg/api/http/controller/main.py
+++ b/src/langbot/pkg/api/http/controller/main.py
@@ -1,6 +1,7 @@
 from __future__ import annotations
 
 import asyncio
+import importlib
 import os
 import typing
 
@@ -20,12 +21,6 @@ from .groups import knowledge as groups_knowledge
 from .groups import resources as groups_resources
 from ...mcp.mount import MCPMount
 
-# The traceability subsystem is self-contained and auto-registers its routes
-# through ``group.group_class``. Importing it here (instead of from within the
-# ``groups`` package) keeps the feature decoupled: the Core controller package
-# contains no code that depends on it, only this single bootstrap import.
-from ....operation_trace import routes as _operation_trace_routes  # noqa: F401
-
 importutil.import_modules_in_pkg(groups)
 importutil.import_modules_in_pkg(groups_provider)
 importutil.import_modules_in_pkg(groups_platform)
@@ -33,6 +28,13 @@ importutil.import_modules_in_pkg(groups_pipelines)
 importutil.import_modules_in_pkg(groups_knowledge)
 importutil.import_modules_in_pkg(groups_resources)
 
+# The traceability subsystem is self-contained and auto-registers its routes
+# through ``group.group_class``. Importing it here (instead of from within the
+# ``groups`` package) keeps the feature decoupled: the Core controller package
+# contains no code that depends on it, only this single bootstrap import. It
+# runs after the package scan so its routes join the same registry.
+importlib.import_module('langbot.pkg.operation_trace.routes')
+
 
 class BoundedJSONRequest(quart.Request):
     """Parse bounded HTTP JSON bodies outside the shared event loop."""
diff --git a/src/langbot/pkg/persistence/alembic/versions/0032_operation_traceability.py b/src/langbot/pkg/persistence/alembic/versions/0033_operation_traceability.py
similarity index 97%
rename from src/langbot/pkg/persistence/alembic/versions/0032_operation_traceability.py
rename to src/langbot/pkg/persistence/alembic/versions/0033_operation_traceability.py
index f2e3a9c2d..45394ea4d 100644
--- a/src/langbot/pkg/persistence/alembic/versions/0032_operation_traceability.py
+++ b/src/langbot/pkg/persistence/alembic/versions/0033_operation_traceability.py
@@ -1,7 +1,7 @@
 """add workspace operation traceability table
 
-Revision ID: 0032_operation_traceability
-Revises: 0031_merge_totp_assistant
+Revision ID: 0033_operation_traceability
+Revises: 0032_cert_artifact_digest
 Create Date: 2026-09-25
 
 The table is append-only and tenant-owned. Fresh installs already receive it
@@ -22,8 +22,8 @@ import sqlalchemy as sa
 from alembic import op
 
 
-revision = '0032_operation_traceability'
-down_revision = '0031_merge_totp_assistant'
+revision = '0033_operation_traceability'
+down_revision = '0032_cert_artifact_digest'
 branch_labels = None
 depends_on = None