fixup: address review — sectarian wording, stragglers, quote framing

- prebuilt/ajahn-chah/sources/sutta-excerpts.md: drop comparative
  claim against 摩诃僧祇律 / 四分律, switch to non-comparative
  description of Pali Vinaya core rules. Was a self-violation of
  ajahn-chah's own NO SECTARIAN JUDGMENT HARD-GATE.

- prebuilt/compare/SKILL.md: 可用祖师 table reorganized 8→10 by
  tradition (汉传 / 藏传 / 南传) — milarepa and ajahn-chah now
  surfaceable in cross-tradition compare. Add 跨传统对比注意事项
  block + extend 禁忌 with comparative-judgment ban.

- gemini-extension.json: description updated 8 → 10 / Chinese →
  Buddhist + version 0.3.0 → 0.4.0 (was missed by the v0.4 commit;
  reviewer flagged).

- README.md: "安装全部 8 位" → "安装全部 10 位（三大传统）".

- ETHICS.md: Tier A table now lists milarepa as 9th PD master with
  BDRC sourcing note. Tier B table adds Ajahn Chah (1918–1992,
  ~2042). New Tier B 特例 section codifies the ajahn-chah inclusion
  rationale: authorized non-commercial Forest Sangha translations,
  summary-only (no full passages), HARD-GATE-enforced provenance,
  24h takedown commitment. Fixes ETHICS being misaligned with the
  v0.4 reality.

- prebuilt/ajahn-chah/sources/teachings-excerpts.md: prominent
  banner at top clarifying that all > blockquote blocks are
  summarizations (主旨), not verbatim quotes, plus citation format
  bumped to require "（开示要旨）" suffix. Closes ambiguity that
  could lead downstream LLMs / readers to treat blocks as direct
  Ajahn Chah speech.

Validation
----------
• python scripts/validate.py --strict → ✅ 11 masters
• python scripts/validate-fidelity.py → ✅ 11 masters
• pytest tests/ → ✅ 31 passed, 6 skipped

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

prebuilt/ajahn-chah/sources/sutta-excerpts.md

@@ -112,7 +112,7 @@
 
 ### 比丘戒律之核心
 
-巴利律（Vinaya Piṭaka）—— 比丘 227 条戒、比丘尼 311 条戒。森林禅林派以严格持守巴利戒律为日常生活基础。比《摩诃僧祇律》或汉传《四分律》在某些细节上更接近原始（如食后不食、金钱不持等）。
+巴利律（Vinaya Piṭaka）—— 比丘 227 条戒、比丘尼 311 条戒。森林禅林派以严格持守巴利律为日常生活基础，包括食后不食、不持金钱、过午不食、依止四依（树下住、粪扫衣、托钵食、陈弃药）等具体条款。
 
 **主旨**：戒不是束缚，是平静心的物质条件。