feat(kit): render the selects with UiSelect

UiSelect renders the bare native select with v-model, options and
disabled. Options that carry their own attributes come through the slot, a
caller's own change handler still reaches the select, and hold never
rewrites a focused select and takes the model back on blur. Without hold, a
select takes its model back once its change has rendered, so a pick its
owner refuses goes back, as the raw value binding did.

The HUD layout, draw colour, RTL-SDR gain, radio station tag, voice
provider, voice timeout, scene and CCTV camera selects now render through
it.

scripts/format-scope.json

@@ -1134,6 +1134,8 @@
   "src/ui/kit/UiButton.test.mjs",
   "src/ui/kit/UiChip.vue",
   "src/ui/kit/UiChip.test.mjs",
+  "src/ui/kit/UiSelect.js",
+  "src/ui/kit/UiSelect.test.mjs",
   "src/ui/rail/RailChips.vue",
   "src/ui/displayPanelActions.test.mjs",
   "src/testSupport/vueDom.mjs",

scripts/package-boundaries.json

@@ -135,7 +135,8 @@
       "src/ui/rail/panelState.js",
       "src/sdr/gain.js",
       "src/ui/kit/UiSlider.js",
-      "src/ui/kit/UiChip.vue"
+      "src/ui/kit/UiChip.vue",
+      "src/ui/kit/UiSelect.js"
     ],
     "external": ["vue", "pinia"]
   },