Add Maria WhatsApp+RAG bridge as a service (LXC 171)

Move the /tmp prototype (Baileys bridge + RAG consumer) into git as a
proper sibling project to discord-bridge/: own systemd --user units
(whatsapp bridge, rag consumer, dashboard, periodic Drive sync timer),
a filesystem document store with a stdlib control dashboard (start/
stop/restart, document CRUD, reindex, Google Drive sync via rclone),
and an idempotent ops/install.sh following the same conventions.

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

proxmox/lxc171-claude-agent/maria-whatsapp-bridge/ops/maria-sync.service

@@ -0,0 +1,21 @@
+# Unit systemd de UTILIZATOR: o singura trecere de sincronizare Drive + reindexare
+# conditionata (rag/sync.py). Pornit periodic de maria-sync.timer, sau manual:
+#
+#   systemctl --user start maria-sync.service
+#   journalctl --user -u maria-sync -f
+
+[Unit]
+Description=Sincronizare depozit documente Maria (Drive) + reindexare RAG
+Documentation=file:///workspace/romfastsql/proxmox/lxc171-claude-agent/maria-whatsapp-bridge/README.md
+
+[Service]
+Type=oneshot
+WorkingDirectory=/workspace/romfastsql/proxmox/lxc171-claude-agent/maria-whatsapp-bridge/rag
+EnvironmentFile=%h/.maria-bridge/env
+Environment=MARIA_BRIDGE_DIR=%h/.maria-bridge
+Environment=PYTHONUNBUFFERED=1
+ExecStart=%h/.maria-bridge/venv/bin/python sync.py
+
+StandardOutput=append:%h/.maria-bridge/logs/sync.log
+StandardError=append:%h/.maria-bridge/logs/sync.log
+SyslogIdentifier=maria-sync