Add systemd units

Each repo carries the units for the daemons it owns. WorkingDirectory stays
/srv/astrape so env/ and models/ resolve, while the code comes from the
editable installs under repos/.

The old astrape-db.service was misnamed -- it runs the weather forecast
ingest, and collided with what would have been an astrape-db repo. It is
astrape-weather-forecast.service here.

The training unit forces ATEN_CPU_CAPABILITY=default, because this host has no
AVX2 and torch otherwise dies with SIGILL in Adam, and caps threads with Nice
so a nightly run does not starve the 5-second Modbus poll.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

deploy/systemd/astrape-web.service

@@ -0,0 +1,19 @@
+[Unit]
+Description=Astrape Web UI
+After=network-online.target
+Wants=network-online.target
+
+[Service]
+Type=simple
+User=gibil
+Group=gibil
+WorkingDirectory=/srv/astrape
+Environment=PYTHONUNBUFFERED=1
+Environment=PYTHONDONTWRITEBYTECODE=1
+
+ExecStart=/srv/astrape/.venv/bin/python -m astrape_dashboard.scripts.daemons.web_daemon
+Restart=always
+RestartSec=10
+
+[Install]
+WantedBy=multi-user.target