chore(lint): ratchet the role-word baseline down after the docs audit

The audit pass removed a "role" occurrence from kernel/events.mdx (now clean)
and one from kernel/services-checklist.mdx (4 → 3). check-role-word is a
ratchet, so an improvement fails the gate until the baseline records it.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01HrRNgrWaRtggzmrHpbomyh

Author: claude

scripts/role-word-baseline.json

@@ -12,8 +12,7 @@
   "content/docs/getting-started/index.mdx": 1,
   "content/docs/getting-started/quick-start.mdx": 1,
   "content/docs/kernel/contracts/data-engine.mdx": 1,
-  "content/docs/kernel/events.mdx": 1,
-  "content/docs/kernel/services-checklist.mdx": 4,
+  "content/docs/kernel/services-checklist.mdx": 3,
   "content/docs/permissions/authentication.mdx": 4,
   "content/docs/permissions/authorization.mdx": 3,
   "content/docs/permissions/delegated-administration.mdx": 11,