Add RegressionLedger to Code Quality & Testing
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Adds RegressionLedger — a hook-based guardrail plugin that stops a coding agent from re-applying a fix that already failed.
It fingerprints each edit (normalized tokens), links it to the next test/build outcome, persists to a local ledger that survives session restarts and context compaction, and denies (PreToolUse) a repeat of a previously-failed fix with the reason attached.
/plugin marketplace add anlor1002-alt/regressionledger → /plugin install regressionledger@anlor1002-pluginsOne-line README addition following the existing external-entry format; no other changes.