docs(options): README tables reconciled + permanent option-docs check (item 6a)

Slice (a) of the docs review: 9 undocumented nomarchy.* options got
README rows or inline .leaf mentions (autoTimezone, camera IR-hide,
intel.guc, amd.pstate/vaapi, package, system.stateFile, restic.paths).
The diff is now a flake check: option names are eval-walked from the
four option-declaring modules (config halves stay lazy) and compared
to the tables by tools/check-option-docs.py — undocumented options and
stale table rows both fail. Negative-tested against the pre-fix README
(reports exactly the 9 gaps). Item 6 split into slices a–d in BACKLOG.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

docs/ROADMAP.md

@@ -849,6 +849,16 @@ how to override it. Items marked ✓ are shipped.
   your theme / essentials" flow (ties into the branding work).
 
 ## Known issues & follow-ups
+- ✓ **README option tables drift from the live surface** (docs review
+  slice (a), 2026-07-04): a fresh reconcile found 9 undocumented options
+  (autoTimezone, camera.hideIrSensor/irMatch, intel.guc, amd.pstate/
+  vaapi, package, system.stateFile, restic.paths) — rows/mentions added,
+  and the diff is now permanent: `checks.option-docs` walks the option
+  names out of the four option-declaring modules at eval time (their
+  lazy `config` halves never evaluate, so dummy args suffice) and
+  requires each a table row — or a backticked `.leaf` mention for
+  non-enable sub-knobs — plus flags table rows whose option no longer
+  exists (tools/check-option-docs.py).
 - ✓ **swaync text invisible on summer-day** (Latitude QA, 2026-07-04):
   the themed CSS paired @subtext on @base, but palette roles are not
   uniform across themes — summer-day/flexoki-light use subtext as