feat(menu): Look & Feel category — theme, wallpaper, night light (item 19)

The gate was >=3 appearance entries and it's met: the root's Theme row
becomes "Look & Feel" (pango-escaped & — the root passes
-markup-rows; matched on *Look*), a new lookfeel submenu carries the
Theme grid (SUPER+T hint), Next wallpaper (SUPER+SHIFT+T hint via the
new generalized hintForAction, which menuHint is now sugar over), and
the Night light toggle moved out of System — which thins by one row.
The root stays at six entries; both direct binds still hit the leaves.

Verified: V0; V1 — rendered menu passes bash -n with the mode, escaped
label and relocated night-light row; visual — tokyo-night 1080p
capture renders "Look & Feel" correctly with hints intact. Submenu
flow queued for a session test (HARDWARE-QUEUE).

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

agent/JOURNAL.md

@@ -17,6 +17,26 @@ Template:
 
 ---
 
+## 2026-07-05 — Look & Feel menu category (iteration #40, item 19)
+- **Task:** BACKLOG NEXT#19 — its ≥3-entries gate is met (Theme, Next
+  wallpaper, Night light). Item deleted.
+- **Did:** root's Theme row → "Look & Feel" (pango-escaped —
+  -markup-rows menus treat & as an entity; matched on *Look*); new
+  lookfeel mode: Theme (SUPER+T hint), Next wallpaper (SUPER+SHIFT+T
+  hint via the new generalized hintForAction), Night light row moved
+  from System (System thins by one). Root stays six. menuHint is now
+  sugar over hintForAction.
+- **Verified:** V0; V1 — menu bash -n, lookfeel mode + escaped label
+  + night light relocated (4 occurrences, all in lookfeel/nightlight
+  paths); VISUAL — tokyo-night capture: root renders "Look & Feel"
+  correctly with six rows and intact hints. Submenu flow → V3
+  queued.
+- **Pending:** V3. NEXT now: 28 (Bernardo-gated) · 14 (Monday watch)
+  · 18 [big, Decision-gated] · 20 [human] — the LATER tier or QA
+  sweeps are next for the loop.
+- **Next suggestion:** LATER's OCR screenshot-to-text (two-row
+  Capture addition, self-contained) — or a QA sweep.
+
 ## 2026-07-05 — launch-or-focus binds (iteration #39, item 17)
 - **Task:** BACKLOG NEXT#17 (the UI review is Bernardo-gated; back to
   the queue head). Item deleted.