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/setup_exf_deployment.py

@@ -0,0 +1,69 @@
+#!/usr/bin/env python3
+"""
+ExF System Deployment Setup
+============================
+Creates Prefect deployment for the ExF fetcher flow.
+Uses Prefect 3.x syntax with long-running process pattern.
+"""
+
+import sys
+import asyncio
+from pathlib import Path
+
+# Add paths
+sys.path.insert(0, str(Path(__file__).parent.parent))
+sys.path.insert(0, str(Path(__file__).parent.parent / "external_factors"))
+
+from prefect import serve, get_client
+from prod.exf_fetcher_flow import exf_fetcher_flow
+
+
+async def setup_deployment():
+    """Set up ExF deployment for unattended operation."""
+    
+    print("=" * 60)
+    print("ExF Deployment Setup")
+    print("=" * 60)
+    
+    # Check existing deployments
+    async with get_client() as client:
+        deployments = await client.read_deployments()
+        
+        exf_deployments = [d for d in deployments if 'exf' in d.name.lower()]
+        print(f"\nFound {len(exf_deployments)} existing ExF deployments:")
+        for d in exf_deployments:
+            print(f"  - {d.name} (ID: {d.id})")
+        
+        # Clean up old ExF deployments to avoid conflicts
+        for d in exf_deployments:
+            print(f"  Deleting old deployment: {d.name}")
+            try:
+                await client.delete_deployment(d.id)
+                print(f"    ✓ Deleted")
+            except Exception as e:
+                print(f"    ✗ Error: {e}")
+    
+    print("\n" + "=" * 60)
+    print("Serving ExF Flow")
+    print("=" * 60)
+    print("\nThe ExF flow is a LONG-RUNNING daemon, not a scheduled job.")
+    print("It will:")
+    print("  - Poll indicators continuously at 0.5s intervals")
+    print("  - Push to Hazelcast every 0.5s")
+    print("  - Run until manually stopped")
+    print("\nTo start manually:")
+    print("  cd /mnt/dolphinng5_predict/prod")
+    print("  python exf_fetcher_flow.py")
+    print("\nTo run as background service:")
+    print("  nohup python exf_fetcher_flow.py > /var/log/exf.log 2>&1 &")
+    
+    # Note: We don't use serve() for long-running daemons
+    # serve() is for scheduled flows. Instead, we document how to run it.
+    
+    print("\n" + "=" * 60)
+    print("Setup Complete")
+    print("=" * 60)
+
+
+if __name__ == "__main__":
+    asyncio.run(setup_deployment())