Add @tpmjs/tools-slack (10 tools) and @tpmjs/tools-discord (15 tools)
with full API coverage, typed outputs, and domain-validated blocks.
Add 7 missing business categories (finance, legal, hr, marketing, cx,
edu, sales) to TPMJS_CATEGORIES so 50 previously skipped packages
can sync to tpmjs.com.
Fix lefthook secrets hook to skip gracefully when git-secrets is not
installed.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
