docs: factual-drift pass + i2c option docs (#47, #48)

Fix documentation drift (each claim verified against code): theme count
21→24; waybar whole-swap lists (waybar.css=5 incl. neon-glass vs
waybar.jsonc parity=4 + boreal); idle "suspend 30"→"15 min battery-only";
Tailscale sudo→operator; hosts/live.nix "No installer yet" header; link
docs/MIGRATION.md + fix its placeholder URL; README layout tree
(+doctor/control-center/battery-notify); OVERRIDES swappy→satty; document
always-on home pieces. String fixes: keybind cheatsheet
nmtui→networkmanager_dmenu; complete nomarchy-menu usage string
(+doctor/firmware/controlcenter/rollback). Add README rows for
nomarchy.hardware.i2c.* (#48) — closes checks.option-docs.

Implemented by a worktree agent; diff reviewed and cherry-picked.
Verified V0 (flake check) + checks.option-docs green + V1 (HM build).

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

agent/JOURNAL.md

@@ -17,6 +17,24 @@ Template:
 
 ---
 
+## 2026-07-09 — #47+#48 docs/string factual-drift pass (delegated, worktree)
+- **Task:** NEXT #47 (docs + string drift) + #48 (i2c option-docs). Delegated
+  to a worktree sonnet agent, parallel with #46 VM + the #49 agent, no shared
+  files.
+- **Did:** Agent fixed every drift after verifying each claim against code:
+  theme count 21→24 (README ×3, TESTING, template), waybar whole-swap list
+  (correctly split waybar.css=5 incl. neon-glass vs waybar.jsonc parity=4 +
+  boreal), idle 30→15min-battery-only, Tailscale sudo→operator, live.nix
+  header, MIGRATION link + URL, README layout tree (+doctor/CC/battery-notify),
+  OVERRIDES swappy→satty, always-on note; keybind nmtui→networkmanager_dmenu;
+  nomarchy-menu usage string (+doctor/firmware/controlcenter/rollback). Added
+  README i2c rows (#48). Reviewed the diff, cherry-picked onto main.
+- **Verified:** V0 flake check green; `checks.option-docs` now **green** (85
+  options, no stale rows) — closes #48; V1 HM generation builds (usage string +
+  keybind label confirmed in the built output). Re-run on main after cherry-pick.
+- **Pending:** none — docs/config, fully verified at their tier.
+- **Next suggestion:** land #49 (checks batch); then #50.
+
 ## 2026-07-09 — Promote V0/V1 PROPOSED items → NEXT #47–50 (Bernardo-directed)
 - **Task:** Bernardo asked to bump the non-V2 PROPOSED items into NEXT (to
   feed parallel worktree agents that can't touch the VM). Triage is his call;