chore: sync repository to current working state

Brings azcomputerguru/guru-connect up to the authoritative working copy that
had been maintained in the claudetools monorepo: Phase 1 security and
infrastructure (middleware, metrics, utils, token blacklist, deployment
scripts, security audits) plus the native-remote-control integration spec.
Preserves the repo .gitignore, .cargo, and server/static/downloads.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

server/guruconnect.service

@@ -0,0 +1,45 @@
+[Unit]
+Description=GuruConnect Remote Desktop Server
+Documentation=https://git.azcomputerguru.com/azcomputerguru/guru-connect
+After=network-online.target postgresql.service
+Wants=network-online.target
+
+[Service]
+Type=simple
+User=guru
+Group=guru
+WorkingDirectory=/home/guru/guru-connect/server
+
+# Environment variables (loaded from .env file)
+EnvironmentFile=/home/guru/guru-connect/server/.env
+
+# Start command
+ExecStart=/home/guru/guru-connect/target/x86_64-unknown-linux-gnu/release/guruconnect-server
+
+# Restart policy
+Restart=on-failure
+RestartSec=10s
+StartLimitInterval=5min
+StartLimitBurst=3
+
+# Resource limits
+LimitNOFILE=65536
+LimitNPROC=4096
+
+# Security hardening
+NoNewPrivileges=true
+PrivateTmp=true
+ProtectSystem=strict
+ProtectHome=read-only
+ReadWritePaths=/home/guru/guru-connect/server
+
+# Logging
+StandardOutput=journal
+StandardError=journal
+SyslogIdentifier=guruconnect
+
+# Watchdog (server must send keepalive every 30s or systemd restarts)
+WatchdogSec=30s
+
+[Install]
+WantedBy=multi-user.target