chore: safety snapshot 2026-03-05 — HCM infrastructure before 2y klines experiment

Captures critical infrastructure surrounding the nautilus_dolphin core package:
- dolphin_vbt_real.py: VBT vectorized backtest engine (6008 lines)
- dolphin_paper_trade_adaptive_cb_v2.py: champion runner (champion_5x_f20)
- _update_vbt_cache.py / update_VBT_parquet_cache.bat: cache builder
- external_factors/: ExF system (all 85 indicator fetchers + NPZ cache)
- mc_forewarning_qlabs_fork/: QLabs-enhanced MC-Forewarner research fork
- DATA_LOCATIONS.md: source-of-truth path registry
- .gitignore: excludes vbt_cache*, backfilled_data, .venv, models, etc.

Note: nautilus_dolphin/ has own git repo (inner) — safety snapshot committed there separately.
Champion state: WR=49.3%, ROI=+44.89%, PF=1.123, DD=14.95%, Sharpe=2.50 (55d, full-stack, abs_max_lev=6.0).

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

external_factors/eso_cache/latest_esoteric_factors.json

@@ -0,0 +1,46 @@
+{
+  "timestamp": "2026-03-01T21:34:06.686948+00:00",
+  "unix": 1772400846,
+  "calendar": {
+    "year": 2026,
+    "month": 3,
+    "day_of_month": 1,
+    "hour": 21,
+    "minute": 34,
+    "day_of_week": 6,
+    "week_of_year": 9
+  },
+  "fibonacci_time": {
+    "closest_fib_minute": 1597,
+    "harmonic_strength": 0.0
+  },
+  "regional_times": {
+    "Americas": {
+      "hour": 16.566666666666666,
+      "is_tradfi_open": false
+    },
+    "EMEA": {
+      "hour": 21.566666666666666,
+      "is_tradfi_open": false
+    },
+    "South_Asia": {
+      "hour": 3.066666666666667,
+      "is_tradfi_open": false
+    },
+    "East_Asia": {
+      "hour": 5.566666666666666,
+      "is_tradfi_open": false
+    },
+    "Oceania_SEA": {
+      "hour": 5.566666666666666,
+      "is_tradfi_open": false
+    }
+  },
+  "population_weighted_hour": 1.57,
+  "liquidity_weighted_hour": 21.13,
+  "liquidity_session": "LOW_LIQUIDITY",
+  "market_cycle_position": 0.4658,
+  "moon_illumination": 0.9703631088596449,
+  "moon_phase_name": "FULL_MOON",
+  "mercury_retrograde": 1
+}