init: telegram bot bridging messages to claude sessions

Async Rust bot (teloxide + tokio) that:
- Authenticates users per chat with a passphrase (resets daily at 5am)
- Generates deterministic UUID v5 session IDs from chat_id + date
- Pipes messages to `claude -p --session-id/--resume <uuid>`
- Persists auth and session state to disk across restarts
- Deploys as systemd --user service via `make deploy`

noc.service.in

@@ -0,0 +1,18 @@
+[Unit]
+Description=NOC Telegram Bot
+After=network-online.target
+Wants=network-online.target
+
+[Service]
+Type=simple
+WorkingDirectory=%h
+ExecStart=@REPO@/target/release/noc
+Restart=on-failure
+RestartSec=5
+Environment=RUST_LOG=noc=info
+Environment=NOC_CONFIG=@REPO@/config.yaml
+Environment=NOC_STATE=@REPO@/state.json
+Environment=PATH=@PATH@
+
+[Install]
+WantedBy=default.target