Stack Trace Dedup Kit — Python & Node Error Fingerprinting, Grouped Incident Report

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Description

Local stack-trace grouper for developers and agents: feed it log files and get fingerprint groups ranked by occurrences, with normalized messages, project locations, and scrubbed sample excerpts, plus a summary with lines, exceptions, groups, and compression ratio. Read-only, standard library only, no network, no account, secret scrubbing always on. Includes the upstream MIT pra-effect tool unchanged with attribution, a batch wrapper, fictional sample logs, and tests. Grouping shows recurrence, not cause; scrubbing is a heuristic, not redaction — review reports before sharing.