What's Changed
- stage-352: 4-PR clean batch — _summary_cache LRU cap #2216 + re.MULTILINE strip fix #2217 + Compact sidebar lineage hide #2219 + CONTRIBUTORS/README refresh #2220 by @nesquena-hermes in #2221
- fix: cap _summary_cache with LRU (max 16 entries) by @franksong2702 in #2216
- fix: drop re.MULTILINE from 'the user is asking' strip pattern by @franksong2702 in #2217
- Hide prior-turn lineage metadata in compact sidebar by @franksong2702 in #2219
- docs: refresh CONTRIBUTORS.md and README to v0.51.58 (130→137 contributors, 568→646 PR credits) by @nesquena-hermes in #2220
Full Changelog: v0.51.58...v0.51.59