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/dvae/exp8_boost_robustness_results.json

@@ -0,0 +1,151 @@
+{
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+    "pf": 1.215,
+    "dd": 15.05,
+    "sharpe": 4.38,
+    "wr": 50.5,
+    "trades": 2155
+  },
+  "results": [
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+      "h2_sharpe": 4.769183844351268,
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+      ]
+    },
+    {
+      "name": "1_fixed_thr035_a1.0",
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+    {
+      "name": "2_adaptive_alpha__thr035_a1.0xboost",
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+    },
+    {
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+      "h2_sharpe": 5.182956035866156,
+      "split_days": [
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+    },
+    {
+      "name": "5_adaptive_beta__thr035_ax(1+beta)",
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+      "pf": 1.2201203038704769,
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+      "h1_roi": 38.80519726574197,
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+      "h1_sharpe": 3.9158586921478613,
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+      "h2_sharpe": 5.302551495714016,
+      "split_days": [
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+      ]
+    }
+  ],
+  "meta": {
+    "exp": "exp8",
+    "question": "Is scale_boost overfitting? Are threshold/alpha regime-dependent?",
+    "total_elapsed_s": 1401.0,
+    "gold_match": true,
+    "fixed_match": true
+  }
+}