pakka v0.9.0
v0.9.0 ships the AST-based commit-gate built atop mvdan.cc/sh/v3 — chained shapes, env-prefixed commits, subshells, and redirects are now correctly handled. Output-token meter writes per session-end so the RECEIPTS figure no longer shrinks across releases as Claude Code rotates transcripts. New backfill-output-tokens subcommand recovers historical sessions where transcripts still exist; first cumulative figure under the new persistence model is 5,939,566 output tokens (~$59.10 saved). Release checklist updated.