chore: empty changeset for the docs-only sweep PR

The Check Changeset gate counts changesets added by the PR itself; an
empty-frontmatter changeset is the sanctioned releases-nothing declaration.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01LXvaYR7TiJBCxYwjn51owH

Author: claude

.changeset/v17-docs-sweep-run-4.md

@@ -0,0 +1,8 @@
+---
+---
+
+Docs-only: v17 docs sweep run 4 (rc.1 catch-up; closes the missing-run-2
+coverage gap over `a641d10..0f9faa2`). Fixes the retired `api.requireAuth`
+opt-out still being taught in permissions/forms docs (#3963) and the
+half-updated kernel services checklist (16 → 15 services after the `workflow`
+slot retirement, #4451). Releases nothing.