expose gulika as partial prashna evidence

docs/research/pre_work_error_ledger.md

@@ -89,7 +89,7 @@ For large architecture or release work, also read:
 | ERR-056 | A WorkBuddy checkout of the same remote diverged substantially from the active source branch and can be mistaken for a mergeable mirror. | active | Read `whole_machine_fragment_sweep_2026_07_14.md`; do not copy or merge it without explicit commit-level review on a separate branch. |
 | ERR-057 | The release quality profile checked untracked files but did not execute the privacy AST scan or the real Chromium report-isolation probe. | mitigated 2026-07-14 | `release_hygiene_check()` now requires `public_release_privacy_scan.py --json` and `report_renderer_isolation_poc.py --strict`; parity manifest validation also runs as a contract check. |
 | ERR-058 | Formula-based Sahams used the day/night operand rules but omitted the documented zodiacal-order `+30°` exception. | mitigated 2026-07-14 | `_calc_formula_saham()` applies the `references/saham_rules.json` forward-arc condition and one-sign correction; keep external numeric oracle parity as a separate `partial` requirement. |
-| ERR-059 | Gulika was either an approximate fallback or falsely implied as a chart module output. | mitigated 2026-07-14 | `scripts/gulika.py` computes Prasna Marga Ghatika segment Ascendant with Swiss sunrise/sunset and Lahiri sidereal houses; registry is `partial` and exposes only the actual calculator until external numeric parity and chart integration are complete. |
+| ERR-059 | Gulika was either an approximate fallback or falsely implied as a chart module output. | mitigated 2026-07-14 | `scripts/gulika.py` computes Prasna Marga Ghatika segment Ascendant with Swiss sunrise/sunset and Lahiri sidereal houses. It is exposed only as `prashna_context.supporting_indicators.gulika`, remains `partial`, and cannot unlock Sphuta or verdict layers until external numeric parity exists. |
 
 ## Fragment Sweep Command Set
 

references/technique_registry.json

@@ -430,7 +430,8 @@
         "full-reading"
       ],
       "output_paths": [
-        "scripts/gulika.py:calculate_gulika"
+        "scripts/gulika.py:calculate_gulika",
+        "prashna_context.supporting_indicators.gulika"
       ],
       "audit_label": "Upagraha/Gulika/Maandi",
       "missing_impact": "Swiss day/night and Prasna Marga Ghatika Gulika are available as supporting evidence; Maandi, other Upagrahas and external numeric parity remain unavailable.",

scripts/prashna_context.py

@@ -9,6 +9,10 @@ try:
     from scripts.domain_calculation_service import CalculationError, compute_chart
 except ModuleNotFoundError:  # pragma: no cover - CLI execution path
     from domain_calculation_service import CalculationError, compute_chart
+try:
+    from scripts.gulika import calculate_gulika
+except ModuleNotFoundError:  # pragma: no cover - CLI execution path
+    from gulika import calculate_gulika
 
 
 class PrashnaContextError(ValueError):
@@ -58,6 +62,13 @@ def build_prashna_context(payload: dict[str, Any]) -> dict[str, Any]:
         })
     except (CalculationError, ValueError, TypeError) as exc:
         raise PrashnaContextError(f"Swiss Prashna chart blocked: {exc}") from exc
+    try:
+        gulika = calculate_gulika(moment, lat=float(payload["lat"]), lon=float(payload["lon"]), tz=tz)
+    except Exception as exc:
+        gulika = {
+            "status": "blocked",
+            "reason": f"gulika_supporting_indicator_failed:{type(exc).__name__}",
+        }
     return {
         "scope": "prashna_context",
         "status": "computed",
@@ -71,6 +82,7 @@ def build_prashna_context(payload: dict[str, Any]) -> dict[str, Any]:
         "planets": chart["planets"],
         "calculation_contract": chart["calculation_contract"],
         "result_hash": chart["result_hash"],
-        "blocked_layers": ["Gulika", "Trisphuta", "Kunda", "Prashna verdict"],
-        "boundary": "No client-supplied planets or ascendant are accepted. Approximate Prashna layers are blocked pending validated implementations.",
+        "supporting_indicators": {"gulika": gulika},
+        "blocked_layers": ["Trisphuta", "Kunda", "Prashna verdict"],
+        "boundary": "No client-supplied planets or ascendant are accepted. Gulika is supporting-only pending external numeric parity; Sphuta and verdict layers remain blocked.",
     }

tests/test_prashna_entry_contract.py

@@ -21,7 +21,8 @@ def test_cli_prashna_uses_question_moment_swiss_context_only():
 
     assert payload["status"] == "computed"
     assert payload["chart_source"] == "swiss_ephemeris_backend"
-    assert "Gulika" in payload["blocked_layers"]
+    assert payload["supporting_indicators"]["gulika"]["status"] == "partial"
+    assert "Trisphuta" in payload["blocked_layers"]
 
 
 def test_cli_prashna_blocks_legacy_approximation_modes():