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/serve_exf.py

@@ -0,0 +1,13 @@
+import sys
+from pathlib import Path
+sys.path.insert(0, str(Path(__file__).parent))
+sys.path.insert(0, str(Path(__file__).parent.parent / "external_factors"))
+
+from exf_prefect_flow import exf_live_flow
+
+if __name__ == "__main__":
+    # Serve the flow locally
+    exf_live_flow.serve(
+        name="exf-live-v2",
+        interval=0,  # Run continuously (not scheduled)
+    )