docs(60): point-of-use corrections from the 2026-10-20 review

Measured fixes, one line each, from the review of everything that landed on
2026-10-20 (issue #60). Each page keeps its own facts; nothing was moved.

- inventory/index, index: the census blurb says what the page actually covers
  (tracked-vs-box-only per file), not "all userspace configuration"
- dotfiles-deploy: the wallpaper re-fetch recipe resolves the CDN URL through
  the wallhaven API — /w/<id> answers text/html, so curl -L never yields a
  JPEG; description widened to the whole page, tools/index blurb matched
- okf-maintenance: the link example and the mistake bullet now agree with
  okf-spec, which RECOMMENDS absolute bundle paths (they said the opposite)
- decisions/index: the unlisted-page gate is kb-coverage.py, not kb-lint
- AGENTS.md: the three skill-config subsections are pointers again; the pages
  own issue tracker, labels and domain docs
- swayidle-lock.service: Description names what the unit does (arms the idle
  lock over noctalia-shell IPC); suspend belongs to noctalia's inhibitor
- common.pkgs: git-lfs re-justified by the tracked .gitattributes filter
  contract; the swayidle comment drops its lid-policy claim

omp-docs/references/okf-maintenance.md

@@ -38,7 +38,7 @@ happened, and the durable lesson. It is not a file manifest.
 
 A gate that gets an empty file list reports success. Law: a check MUST fail closed;
 a silently-passing gate is worse than none, because it buys the belief of safety.
-Details: [secret gate](../tools/index.md).
+Details: [secret gate](/tools/index.md).
 ```
 
 **Rules:**
@@ -58,8 +58,9 @@ Details: [secret gate](../tools/index.md).
 - ❌ Forgetting the entry — the change lands undocumented and the next agent rediscovers
   the failure the hard way.
 - ❌ Starting a second log in a subdirectory — the sprawl that makes logging useless.
-- ❌ Invented absolute paths in links — links resolve relative to the page, and the
-  linter checks them.
+- ❌ Invented paths in links — the RECOMMENDED form is an absolute bundle path
+  (`/tools/index.md`), resolved against the bundle root; the mistake is a path that
+  names no file there, and that is what the linter reports.
 - ❌ Re-expanding an old entry in place — the entry is a pointer; git is the transcript.
 
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