chore: consolidate platform split checks

src/govoplan_core/db/bootstrap.py

@@ -29,6 +29,7 @@ def create_all_tables() -> None:
     # Build the configured registry so enabled module manifests register their
     # model metadata with the shared SQLAlchemy base before create_all runs.
     from govoplan_core.admin import models as core_admin_models  # noqa: F401
+    from govoplan_core.core import change_sequence as core_change_sequence_models  # noqa: F401
 
     raw_enabled_modules = load_startup_enabled_modules(settings.enabled_modules)
     candidate_modules = startup_candidate_module_ids(settings.enabled_modules, raw_enabled_modules)