chore: release 5.1.1

[github-actions]

🤖 I have created a release beep boop

5.1.1 (2026-10-13)

Bug Fixes

• admin: offer purge controls to admins who may only purge (#257) (de176e6)
• admin: purge the open entry from the edit view, and let the purge button be used twice (#253) (222a656)
• cache listed routes of plugin content types (#254) (b0237e2)
• deps: keep a single Strapi in the workspace (#260) (fc7e5d2)
• judge "Shared across callers" per route, as the boot warning does (#259) (fdfb747)
• keys: encode names and values that could be read as key structure (#251) (06e792a)
• listed routes inherit maxAge and hitpass from their content type (#236) (686bea8), refs #230
• make resetOnStartup actually empty the cache (#250) (2fa03ed)
• never hand a response the cache refuses to concurrent callers (#247) (ad4711f)
• provider-redis: cache anything at all on a Redis Cluster (#244) (e7016f7)
• provider-redis: keep the tracking set in step with live entries (#249) (e92d88a)
• provider-redis: let purges find entries when useRedisSets is off (#245) (346272d)
• purge: match keys for upper-case route paths and literal params (#252) (c7cca82)
• purge: purge cached types that embed an uncached content type (#255) (24759e7)
• recv: do not cache Buffer bodies, which replay as JSON (#256) (6ec317e)
• recv: do not store or share a read that raced a purge (#258) (0806e45)
• say private for every route keyed per caller under scope public (#262) (62a0799)
• serve a cache HIT with the Content-Type the handler chose (#261) (df01f7b)
• traverse dynamic zones when clearing related cache (#233) (940922d), refs #232
• treat options set to undefined as omitted (#248) (f65cbbe)

Documentation

• move agent guidance to AGENTS.md and record two standing rules (#240) (3bee5ec)

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