Merge remote-tracking branch 'origin/master' into feat/windows-pwsh-default

# Conflicts:
#	.agents/notes/proposed/feature/2026-08-01-windows-pwsh-default.i18n.yaml
#	.agents/notes/proposed/feature/2026-08-01-windows-pwsh-default.md
#	.agents/notes/proposed/feature/2026-08-01-windows-pwsh-default.zh.md

.agents/notes/proposed/feature/2026-07-06-recallable-compaction.i18n.yaml

@@ -2,5 +2,5 @@
 # side as of the last confirmed-consistent state. Both languages carry equal authority;
 # after editing either side, bring the other along and re-record with:
 #   pnpm run verify-translation-pairing --write .agents/notes/proposed/feature/2026-07-06-recallable-compaction.md
-2026-07-06-recallable-compaction.md: 5fd26dd2d4086dd6f834f7bdb3194b0ad16db1eb
-2026-07-06-recallable-compaction.zh.md: 25ce6ca50d1755e3a90dbadb35d027c95262e5a4
+2026-07-06-recallable-compaction.md: 1d62f18c0b63257b45f55ad389a94eae4471f920
+2026-07-06-recallable-compaction.zh.md: e53e669b6111f10701353448927c5e37f4e13e0b

.agents/notes/proposed/feature/2026-07-06-recallable-compaction.md

@@ -65,7 +65,7 @@ The design ships as a new backend `dsh-compact-recallable` on the existing `ctx.
 
 ### Follow-ups
 
-Specified during review, deferred until observation calls for them:
+Deferred until observation calls for them:
 
 - Guard degradation ladder (code-only rollup of the oldest stub prefix, footers preserved, rolled-up ids remain recall targets; then one summary after the frozen boundary) — on observed guard livelock or stub-region pressure.
 - Echo detection on stub outputs (sentence-scale n-grams, short literals exempt, retry then strip) — on observed division-of-labor leakage.

.agents/notes/proposed/feature/2026-07-06-recallable-compaction.zh.md

@@ -65,7 +65,7 @@ Status: proposed
 
 ### 后续事项
 
-以下项目在评审期间已经明确，但会延后至观察结果证明需要时再实现：
+以下项目延后至观察结果证明需要时再实现：
 
 - 保护逻辑降级阶梯（通过代码汇总最早的存根前缀，保留页脚，已汇总 id 仍可作为回溯目标；随后在冻结边界后生成一份摘要）：触发条件是观察到保护逻辑活锁或存根区域压力。
 - 存根输出回声检测（句子级 n-gram，豁免短字面量；先重试，再剥离）：触发条件是观察到职责分工泄漏。