docs(commits): add bundled-review shape, voice mode gating, drop humanizer

I rewrote the PR review subflow into three explicit shapes. Shape 1 is a single review that bundles the verdict, the summary body, and zero or more inline pins into one `gh api .../reviews` call. Shape 2 is an issue-thread comment with no verdict. Shape 3 is a reply on an existing inline thread. The single-review path replaces the prior pattern where a Request-Changes verdict with line-specific findings needed separate `gh pr review` + `gh pr comment` calls. That fragmented the Slack notification and the review history.

I migrated all `humanizer` references to `/voice personal`. The voice skill replaced humanizer, so the old name was dead. I dropped the two lineage mentions of "humanizer's signs of AI writing" since they pointed at a skill that no longer exists.

I added a Voice mode and approval gate preamble at the top of Step 2. The mode is decided by whether `.ai/` is tracked in the repo. Gitignored or absent means personal-voice with the full approval gate. Tracked means general-voice and the gate is skipped, since the personal-only patterns (first-person rewrite, contractions, semicolon swap) don't fit a shared rules file. I also updated the Single-skill gate wrap-up paragraph at the end of Step 2 to reference both modes.

0 files changed, 0 insertions, 0 deletions