Compress CLAUDE.md ~46% with terse token-first rewriting (the 'caveman' pattern)

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CLAUDE.md is re-read on every session, so its bloat is a recurring tax; the caveman-style compression rewrites it into telegraphic, low-token phrasing that reportedly shrinks the file ~46% while preserving the instructions the agent actually acts on. It's a one-time edit that pays back on every future session — pair it with path-scoped rules so directory-specific detail isn't loaded globally.