sync: import latest three-engine closure packets

docs/research/three_engine_bav_sav_field_closure_packet_2026_07_21.md

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+# Three-engine BAV/SAV field closure packet — 2026-07-21
+
+## Result
+
+- Rows: `8`
+- Local / PyJHora-JHora / jyotishganit agreement: `5/8`
+- Multi-engine variants: `3/8`
+- Truth upgrades: `0`
+
+## Required evidence before upgrade
+
+- Public worked BAV/SAV table
+- Contributor set
+- Lagna inclusion policy
+- Shodhana state
+- Rashi order / orientation
+
+## Boundary
+
+This packet reuses existing arbitration/probe output. It does not implement or copy a new Ashtakavarga algorithm and does not upgrade formula truth.

docs/research/three_engine_d2_field_closure_packet_2026_07_21.md

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+# Three-engine D2 field closure packet — 2026-07-21
+
+## Result
+
+- Rows: `7`
+- Local / PyJHora-JHora / jyotishganit agreement: `7/7`
+- VedAstro differing endpoint result: `7/7`
+- Truth upgrades: `0`
+
+## Interpretation
+
+For the Steve Jobs public same-case D2 rows, local, PyJHora/JHora and
+jyotishganit agree on seven planet signs. VedAstro differs on all seven rows.
+
+This is therefore classified as:
+
+`partial_consensus_vedastro_endpoint_blocked`
+
+The remaining blocker is not local formula evidence. It is VedAstro hosted
+endpoint/method semantics: same ayanamsa, node mode, varga and timezone contract
+must be pinned before these rows can become global truth.
+
+## Boundary
+
+This packet supports local/PyJHora/jyotishganit D2 confidence only. It does not
+upgrade global oracle truth or commercial production tuning.

docs/research/three_engine_d4_d9_d10_field_closure_packet_2026_07_21.md

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+# Three-engine D4/D9/D10 field closure packet — 2026-07-21
+
+## Result
+
+- Rows: `3`
+- Local / PyJHora-JHora / jyotishganit agreement: `3/3`
+- VedAstro differing endpoint result: `3/3`
+- Truth upgrades: `0`
+
+## Classification
+
+D4, D9 and D10 each have one Moon.sign mismatch row. In all three rows, local, PyJHora/JHora and jyotishganit agree; VedAstro differs.
+
+Status: `partial_consensus_vedastro_endpoint_blocked`
+
+## Boundary
+
+This packet supports partial same-case confidence for these three varga rows only. It does not upgrade global oracle truth or commercial production tuning.

docs/research/three_engine_field_status_batch_2026_07_21.md

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+# Three-engine field status batch — 2026-07-21
+
+## Result
+
+- Existing TEMCQ rows classified: `18`
+- New Panchanga ticket placeholder: `TEMCQ-061`
+- Truth upgrades: `0`
+
+## Classification
+
+- `10` D2/D4/D9/D10 rows are ready for endpoint/method semantics checks.
+- `8` BAV/SAV rows are ready for public worked-example comparison.
+- Panchanga has jyotishganit raw but no existing mismatch ticket, so it is queued separately.
+
+## Boundary
+
+This is a closure-status packet only. It does not mark any field as numeric
+truth, formula parity, or production timing evidence.