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/exf_prefect_flow.py

@@ -0,0 +1,113 @@
+from prefect import flow, task, get_run_logger
+from prefect.task_runners import ConcurrentTaskRunner
+from datetime import datetime, timezone
+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"))
+
+HZ_KEY = "exf_latest"
+HZ_MAP = "DOLPHIN_FEATURES"
+ACB_KEYS = ["funding_btc","funding_eth","dvol_btc","dvol_eth","fng","vix","ls_btc","taker","oi_btc"]
+
+@task(name="hz_push", retries=3, retry_delay_seconds=1)
+def hz_push_task(client, payload: dict):
+    import json
+    try:
+        payload = dict(payload)
+        payload["_pushed_at"] = datetime.now(timezone.utc).isoformat()
+        client.get_map(HZ_MAP).blocking().put(HZ_KEY, json.dumps(payload))
+        return True
+    except Exception as e:
+        return False
+
+@flow(name="exf-live", task_runner=ConcurrentTaskRunner(), log_prints=True)
+def exf_live_flow(warmup_s: int = 20):
+    from realtime_exf_service import RealTimeExFService
+    from exf_persistence import ExFPersistenceService
+    from _hz_push import make_hz_client
+    import time
+    
+    log = get_run_logger()
+    
+    # Start services
+    svc = RealTimeExFService()
+    svc.start()
+    log.info(f"RealTimeExFService started — warmup {warmup_s}s")
+    time.sleep(warmup_s)
+    
+    persist = ExFPersistenceService(flush_interval_s=300)
+    persist.start()
+    log.info("ExFPersistenceService started")
+    
+    client = make_hz_client()
+    log.info("Hazelcast connected")
+    
+    pushes = 0
+    last_log = 0
+    
+    log.info(f"Main loop starting — pushing every 0.5s")
+    
+    try:
+        while True:
+            t0 = time.monotonic()
+            
+            # Get indicators
+            indicators = svc.get_indicators(dual_sample=True)
+            staleness = indicators.pop("_staleness", {})
+            
+            # Build payload
+            payload = {k: v for k, v in indicators.items() 
+                      if isinstance(v, (int, float, str, bool))}
+            payload["_staleness_s"] = {k: round(v, 1) 
+                                       for k, v in staleness.items() 
+                                       if isinstance(v, (int, float))}
+            
+            # Check ACB
+            acb_present = [k for k in ACB_KEYS 
+                          if payload.get(k) is not None 
+                          and isinstance(payload[k], (int, float)) 
+                          and payload[k] == payload[k]]
+            
+            payload["_acb_ready"] = len(acb_present) == len(ACB_KEYS)
+            payload["_acb_present"] = f"{len(acb_present)}/{len(ACB_KEYS)}"
+            payload["_acb_missing"] = [k for k in ACB_KEYS if k not in acb_present]
+            payload["_ok_count"] = len([k for k in payload.keys() if not k.startswith('_')])
+            payload["_timestamp"] = datetime.now(timezone.utc).isoformat()
+            payload["_push_seq"] = pushes
+            
+            # Push to HZ
+            try:
+                hz_push_task.submit(client, payload).result(timeout=2.0)
+                pushes += 1
+            except Exception as e:
+                log.warning(f"HZ push failed: {e}")
+            
+            # Persist
+            persist.update_snapshot(payload)
+            
+            # Log status every 60s
+            if time.time() - last_log > 60:
+                stats = persist.get_stats()
+                log.info(
+                    f"Status | pushes={pushes} | "
+                    f"acb={payload['_acb_present']} ready={payload['_acb_ready']} | "
+                    f"files={stats.get('files_written', 0)}"
+                )
+                last_log = time.time()
+            
+            # Maintain interval
+            elapsed = time.monotonic() - t0
+            time.sleep(max(0.0, 0.5 - elapsed))
+            
+    except KeyboardInterrupt:
+        log.info("Interrupted")
+    finally:
+        svc.stop()
+        persist.stop()
+        client.shutdown()
+        log.info(f"Stopped. Total pushes: {pushes}")
+
+if __name__ == "__main__":
+    exf_live_flow()