Bridge deep Ashtakavarga support into finance workflow

docs/research/ashtakavarga_deep_support_bridges_v1_2026_06_28.md

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+# Ashtakavarga Deep Support Bridges v1
+
+Date: 2026-06-28
+
+## Scope
+
+This pass extends finance strict adjudication beyond raw SAV house support and connects three already-computed evidence layers:
+
+- `PAV / Prastara AV`
+- `Sodhita AV`
+- `Kakshya`
+
+The bridge is intentionally conservative. All three layers are added as secondary support or friction context only.
+
+## Contract
+
+Finance strict evidence now accepts:
+
+- `present_evidence.pav_finance_support`
+- `present_evidence.sodhita_finance_support`
+- `present_evidence.kakshya_finance_support`
+
+These can add:
+
+- `pav_finance_support`
+- `sodhita_wealth_friction`
+- `kakshya_finance_support`
+- `kakshya_finance_friction`
+
+to `event_judgement.secondary_context`.
+
+## Boundary
+
+This v1 pass does not:
+
+- directly change `dominant_label`
+- directly change `payout_label`
+- directly change score thresholds
+
+The goal is to make these layers visible and auditable in the adjudication chain before we let them influence window scoring.
+
+## Current Heuristics
+
+- `PAV`: marks support when a planet shows multiple strong contribution sources.
+- `Sodhita`: marks friction when both 2H and 11H resolve to low purified support.
+- `Kakshya`: marks support when average degree-level strength is high and friction when it is low.
+
+## Still Open
+
+- route-specific score weighting
+- richer mapping from PAV contributor identity to wealth theme
+- combining Kakshya with transit timing instead of route-level average only
+- external benchmark closure against JHora/PyJHora examples
+