Follow-up: verify and clean up legacy automation_clients collection

[iqdoctor]

Context

As of 2026-02-13 (commit b9a1389), Copilot code paths were migrated off the legacy automation_clients collection in favor of automation_customers -> automation_project_groups -> automation_projects.

Follow-up

• Verify no remaining runtime/services depend on automation_clients (including any external automation services).
• Smoke-test key flows:
  • POST /api/crm/dictionary
  • POST /api/crm/tickets
  • GET /api/plan-fact
  • Directories UI (clients/projects/rates)
• Decide what to do with automation_clients in MongoDB:
  • keep as legacy, or
  • migrate remaining data (if any), then drop the collection.
• If dropping: prepare a one-off script + backup/rollback plan.

References

• docs/FIXING_COLLECTIONS_MESS_PLAN.md