feat: bump client-services (accumulated feature work + deploy fixes)

Snapshot of in-progress work across local_backend, manager_dashboard,
and waiter_pwa (pricing, chat, fiscal, prep zones, recovery codes, CRM,
inventory, permissions), plus the nginx/docker-compose deploy fixes for
the Unraid + NPM reverse-proxy setup.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

local_backend/requirements.txt

@@ -1,5 +1,6 @@
 fastapi==0.115.0
-uvicorn==0.30.6
+uvicorn[standard]==0.30.6
+websockets==13.1
 sqlalchemy==2.0.36
 pydantic-settings==2.6.1
 python-escpos==3.1