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/tests/conftest.py

@@ -0,0 +1,142 @@
+"""
+prod/tests/conftest.py
+======================
+Pytest session hooks — after every test run, push results to the TUI footer
+via write_test_results() and to run_logs/test_results_latest.json.
+
+Usage:
+  python -m pytest prod/tests/test_data_integrity.py --category data_integrity
+  python -m pytest prod/tests/test_finance_fuzz.py   --category finance_fuzz
+  ...
+
+If --category is omitted the file-name is used to auto-detect the category.
+
+Category → file mapping
+  data_integrity  : test_data_integrity.py
+  finance_fuzz    : test_finance_fuzz.py, test_acb_hz_status_integrity.py,
+                    test_acb_hz_integration.py, test_nautilus_event_trader.py
+  signal_fill     : test_signal_to_fill.py, test_acb_hz_status_integrity.py,
+                    test_acb_hz_integration.py, test_nautilus_event_trader.py
+  degradation     : test_degradational.py, test_mhs_v3.py
+  actor           : test_mhs_v3.py, test_scan_bridge_prefect_daemon.py
+  monte_carlo     : test_mc_scenarios.py
+"""
+
+import json
+import sys
+from datetime import datetime, timezone
+from pathlib import Path
+
+_RESULTS_PATH = Path(__file__).parent.parent.parent / "run_logs" / "test_results_latest.json"
+
+
+def _write_results(payload: dict):
+    """Always write to test_results_latest.json with _run_at timestamp.
+    Merges into existing file so multiple categories accumulate correctly.
+    """
+    try:
+        existing = json.loads(_RESULTS_PATH.read_text()) if _RESULTS_PATH.exists() else {}
+    except Exception:
+        existing = {}
+    existing["_run_at"] = datetime.now(timezone.utc).isoformat()
+    existing.update(payload)
+    _RESULTS_PATH.write_text(json.dumps(existing, indent=2))
+
+# ── Resolve write_test_results ──────────────────────────────────────────────
+_TUI_DIR = Path(__file__).parent.parent.parent / "Observability" / "TUI"
+sys.path.insert(0, str(_TUI_DIR))
+try:
+    from dolphin_tui_v3 import write_test_results
+    _WTR_OK = True
+except Exception:
+    _WTR_OK = False
+
+# ── File → category map ─────────────────────────────────────────────────────
+_FILE_CAT = {
+    "test_data_integrity":          "data_integrity",
+    "test_finance_fuzz":            "finance_fuzz",
+    "test_acb_hz_status_integrity": "finance_fuzz",   # primary
+    "test_acb_hz_integration":      "finance_fuzz",
+    "test_nautilus_event_trader":   "signal_fill",
+    "test_signal_to_fill":          "signal_fill",
+    "test_degradational":           "degradation",
+    "test_mhs_v3":                  "degradation",
+    "test_scan_bridge_prefect_daemon": "actor",
+    "test_mc_scenarios":             "monte_carlo",
+}
+
+_VALID_CATS = {"data_integrity", "finance_fuzz", "signal_fill", "degradation", "actor", "monte_carlo"}
+
+
+def pytest_addoption(parser):
+    parser.addoption(
+        "--category",
+        default=None,
+        help="Override result category written to test_results_latest.json",
+    )
+
+
+def _detect_category(session) -> str:
+    """Infer category from collected item file paths."""
+    for item in session.items:
+        stem = Path(item.fspath).stem
+        if stem in _FILE_CAT:
+            return _FILE_CAT[stem]
+    return "actor"   # safe fallback
+
+
+# ── Per-item outcome collector ───────────────────────────────────────────────
+
+class _Collector:
+    def __init__(self):
+        self.passed  = 0
+        self.failed  = 0
+        self.skipped = 0
+        self.errors  = []
+
+_collector = _Collector()
+
+
+def pytest_runtest_logreport(report):
+    """Called for setup / call / teardown phases of each test."""
+    if report.when != "call":          # only count the actual test call
+        return
+    if report.passed:
+        _collector.passed  += 1
+    elif report.failed:
+        _collector.failed  += 1
+        if report.longreprtext:
+            _collector.errors.append(report.nodeid)
+    elif report.skipped:
+        _collector.skipped += 1
+
+
+def pytest_sessionfinish(session, exitstatus):
+    """Push results after the session completes."""
+    cat = session.config.getoption("--category", default=None) or _detect_category(session)
+    if cat not in _VALID_CATS:
+        cat = "actor"
+
+    total  = _collector.passed + _collector.failed
+    status = "PASS" if _collector.failed == 0 and total > 0 else (
+             "FAIL" if _collector.failed > 0 else "N/A"
+    )
+
+    payload = {cat: {"passed": _collector.passed, "total": total, "status": status}}
+
+    # Always write JSON with _run_at — this is the M6 sensor source of truth.
+    _write_results(payload)
+
+    # Also push to TUI footer if available (best-effort, non-blocking).
+    if _WTR_OK:
+        try:
+            write_test_results(payload)
+        except Exception as e:
+            print(f"[conftest] write_test_results failed: {e}", file=sys.stderr)
+
+    print(
+        f"\n[TEST REPORT] category={cat}  "
+        f"passed={_collector.passed}/{total}  "
+        f"status={status}",
+        file=sys.stderr,
+    )