initial: import DOLPHIN baseline 2026-04-21 from dolphinng5_predict working tree

Includes core prod + GREEN/BLUE subsystems:
- prod/ (BLUE harness, configs, scripts, docs)
- nautilus_dolphin/ (GREEN Nautilus-native impl + dvae/ preserved)
- adaptive_exit/ (AEM engine + models/bucket_assignments.pkl)
- Observability/ (EsoF advisor, TUI, dashboards)
- external_factors/ (EsoF producer)
- mc_forewarning_qlabs_fork/ (MC regime/envelope)

Excludes runtime caches, logs, backups, and reproducible artifacts per .gitignore.

prod/dolphin-scan-bridge.service

@@ -0,0 +1,19 @@
+[Unit]
+Description=DOLPHIN Scan Bridge Service
+After=network.target hazelcast.service
+Wants=hazelcast.service
+
+[Service]
+Type=simple
+User=dolphin
+Group=dolphin
+WorkingDirectory=/mnt/dolphinng5_predict/prod
+Environment="PATH=/home/dolphin/siloqy_env/bin:/usr/local/bin:/usr/bin:/bin"
+ExecStart=/home/dolphin/siloqy_env/bin/python3 /mnt/dolphinng5_predict/prod/scan_bridge_service.py
+Restart=always
+RestartSec=5
+StandardOutput=append:/tmp/scan_bridge.log
+StandardError=append:/tmp/scan_bridge.log
+
+[Install]
+WantedBy=multi-user.target