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/prefect_services/scan_bridge_prefect.py

@@ -0,0 +1,7 @@
+"""Scan Bridge Service - Prefect Managed"""
+import sys
+sys.path.insert(0, '/mnt/dolphinng5_predict/prod')
+from scan_bridge_prefect_daemon import scan_bridge_daemon_flow
+
+if __name__ == "__main__":
+    scan_bridge_daemon_flow()