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.

nautilus_dolphin/patch_nautilus_bug.py

@@ -0,0 +1,51 @@
+"""
+Patch Nautilus 1.219.0 Bug
+==========================
+
+Fixes the Strategy.__init__ bug where Logger expects str but gets StrategyId.
+
+Usage:
+    python patch_nautilus_bug.py
+    # Then run your backtest
+"""
+
+import sys
+import nautilus_trader
+from pathlib import Path
+
+# Find Nautilus installation
+nautilus_path = Path(nautilus_trader.__file__).parent
+strategy_pxd = nautilus_path / "trading" / "strategy.pyx"
+strategy_py = nautilus_path / "trading" / "strategy.py"
+
+print("Nautilus Trader Bug Patch")
+print("=" * 50)
+print(f"Nautilus path: {nautilus_path}")
+
+# Check if we can find the source
+if strategy_pxd.exists():
+    print(f"Found: {strategy_pxd}")
+    # This is a Cython file - would need recompilation
+    print("Note: strategy.pyx is a Cython file - requires recompilation after patching")
+elif strategy_py.exists():
+    print(f"Found: {strategy_py}")
+    # This is a Python file - can patch directly
+    with open(strategy_py, 'r') as f:
+        content = f.read()
+    
+    if 'Logger(name=component_id)' in content:
+        print("Patching strategy.py...")
+        content = content.replace(
+            'Logger(name=component_id)',
+            'Logger(name=str(component_id))'
+        )
+        with open(strategy_py, 'w') as f:
+            f.write(content)
+        print("✅ Patched successfully!")
+    else:
+        print("ℹ️ Already patched or different version")
+else:
+    print("⚠️ Could not find strategy source files")
+
+print("\nAlternative: Use the workaround in DolphinExecutionStrategy")
+print("The strategy already has a try/except workaround for this bug.")