feat(rofi): show the Print-key hints on the Capture menu rows

Iteration #66 (direct request: "make sure menu items that have a keybind
display it"). Audit found every SUPER(+CTRL) module-opening row already
hinted (item 28c); the one gap was Tools ▸ Capture — its Region/Full
screen rows run the exact grim commands of the Print / SHIFT+Print /
CTRL+Print binds but showed nothing. Adds `hintForBind mods key` (matches
keybinds.nix by mods+key, so no drift and no brittle full-action compare)
and `-markup-rows` on the Capture menu so the spans render.

Verified: V0 green; V1 HM built — shipped nomarchy-menu shows
`Region → clipboard {{Print}}`, `Region → file {{SHIFT + Print}}`,
`Full screen → file {{CTRL + Print}}`. Substring case-matches precede the
appended span, so dispatch is unchanged. V3 (pango dim render) queued.

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

agent/HARDWARE-QUEUE.md

@@ -271,6 +271,10 @@ QA machine), the **T14s** (webcam case).
       saves a PNG under ~/Pictures/Screenshots (toast shows the path);
       CTRL+Print saves the whole screen the same way; bare Print still
       copies a region to the clipboard. Both new rows appear in SUPER+?.
+      Also (iteration #66): Tools ▸ Capture now shows the matching dim key
+      hint on the Region → clipboard / Region → file / Full screen → file
+      rows (Print / SHIFT + Print / CTRL + Print) — pango renders, no raw
+      `<span>` leaks.
 - [ ] **rofi menu polish** (iteration #58, item 39 + #56/#57 34/40) —
       after `home-update`: (a) menu › System › Power profile shows a
       colored icon per profile (performance/balanced/power-saver), not