Documentation Sync Audit

Audit project docs against codebase reality. Report drift or fix it.

NEVER

• Never update a doc based on what the code should look like — only sync to what it actually is now.
• Never fix docs for a section you didn't audit — partial fixes create false confidence.
• Never mark a roadmap item complete based on code presence alone — check git log for the deliberate completion commit.
• Never skip auditing CLAUDE.md / agent instructions — stale agent instructions cause cascading errors in future sessions.

Drift Classification: What Actually Goes Stale

Most doc-code drift falls into four categories with different detection approaches: