stem95su: scheduled Drive->site sync CronJob (every 10m)

CronJob stem95su-gdrive-sync (*/10) mounts the content PVC RW and
rclone-syncs the read-only Drive folder "claude" (stem claude/files) onto
it (rclone/rclone:1.74.3, scope=drive.readonly, empty-source guard +
--max-delete 25). ESO ExternalSecret stem95su-rclone <- Vault
secret/stem95su. Requires the GCP OAuth app published to Production or the
refresh token expires ~weekly.

Lands the gdrive-sync stack on master (it had landed on a feature branch
by accident on the shared devvm checkout).

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

scripts/fan-control.service

@@ -1,21 +0,0 @@
-[Unit]
-Description=Presence-aware IPMI fan controller (Dell R730, garage)
-Documentation=https://github.com/ViktorBarzin/infra/blob/master/scripts/fan-control.sh
-After=network-online.target
-Wants=network-online.target
-
-[Service]
-Type=simple
-EnvironmentFile=-/etc/fan-control.env
-ExecStart=/usr/local/bin/fan-control
-# Belt-and-suspenders: whatever happens to the daemon, hand the fans back to
-# the iDRAC's own automatic curve so the box is never stuck in manual mode.
-ExecStopPost=/usr/bin/ipmitool raw 0x30 0x30 0x01 0x01
-Restart=on-failure
-RestartSec=10
-StandardOutput=journal
-StandardError=journal
-SyslogIdentifier=fan-control
-
-[Install]
-WantedBy=multi-user.target