Merge main into the Utilities panel, rebuilt on the Vue panel rail

main moved the panels to Vue views and a one-open-panel rail, and removed
the two templates this branch edited. This merge carries the branch onto
that architecture; it adds no behaviour of its own beyond the port.

- The Utilities panel is a RailPanel in LayerPanelsView with its own rail
  item (handyman). LayerPanel renders the Directions rows into its list with
  LayerRows, and falls back to Data Layers without it.
- Draw leaves DisplayPanel for DrawControls, DrawMarkList and DrawSwatches,
  which render what the draw tool publishes to the display store and call
  its actions, as GeoImport does. drawMarks.js words the rows; the DOM-built
  drawMarkList.js is gone. A row's fly-to is an immediate navigation like
  Import's ('drawing' gets its Cockpit refusal), the name field keeps a
  draft through v-field-value, and the colours are one radio group with a
  single tab stop.
- UiSegmented draws an option's icon, named by its label, for the shape
  buttons.
- The catalogs take main's languages with this branch's strings, Arabic
  included, and the tests follow the views to their new homes.

index.html

@@ -21,31 +21,33 @@
   <link rel="stylesheet" href="/style.css" />
   <link rel="preconnect" href="https://fonts.googleapis.com" />
   <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin />
-  <link href="https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@300;400;500;600;700&family=Inter:wght@300;400;500;600&display=swap" rel="stylesheet" />
+  <link href="https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@300;400;500;600;700&family=Inter:wght@300;400;500;600&family=Noto+Sans+Arabic:wght@400;500;600;700&display=swap" rel="stylesheet" />
   <!-- Icon font subset to the glyphs this app renders. Keep `icon_names` in sync
        with the sources: src/materialSymbolsSubset.test.mjs fails when a source
        names a glyph this list is missing, because a missing glyph does not draw
        a box — the ligature never forms and the element renders the literal word. -->
-  <link href="https://fonts.googleapis.com/css2?family=Material+Symbols+Outlined:opsz,wght,FILL,GRAD@20,400,0,0&icon_names=adjust,arrow_drop_down,arrow_forward,arrow_left,arrow_right,bolt,chevron_left,chevron_right,close,close_fullscreen,dark_mode,draw,east,flare,flight,layers,layers_clear,light_mode,local_fire_department,location_on,more_horiz,my_location,navigation,normal,on,open_in_full,pentagon,public,radar,radio,right_panel_close,right_panel_open,rocket_launch,search,settings,skip_next,skip_previous,timeline,upload_file,videocam,view_in_ar,visibility,visibility_off" rel="stylesheet" />
+  <link href="https://fonts.googleapis.com/css2?family=Material+Symbols+Outlined:opsz,wght,FILL,GRAD@20,400,0,0&icon_names=adjust,arrow_drop_down,arrow_forward,arrow_left,arrow_right,bolt,chevron_left,chevron_right,close,close_fullscreen,dark_mode,draw,east,flare,flight,handyman,layers,layers_clear,light_mode,local_fire_department,location_on,more_horiz,movie,my_location,navigation,normal,on,open_in_full,partly_cloudy_day,pentagon,public,radar,radio,right_panel_close,right_panel_open,rocket_launch,satellite_alt,search,settings,skip_next,skip_previous,streetview,timeline,tune,upload_file,videocam,view_in_ar,visibility,visibility_off" rel="stylesheet" />
 </head>
 <body>
-  <!-- gev:template scene-chrome -->
+  <div class="gev-view" data-gev-view="scene-chrome"></div>
+  <div class="gev-view" data-gev-view="cockpit"></div>
+  <div class="gev-view" data-gev-view="display-controls"></div>
+  <div class="gev-view" data-gev-view="command-dock"></div>
+  <div class="gev-view" data-gev-view="layer-panels"></div>
+  <div class="gev-view" data-gev-view="context"></div>
+  <div class="gev-view" data-gev-view="welcome"></div>
+  <div class="gev-view" data-gev-view="provider-settings"></div>
+  <!-- Intelligence HUD Overlay -->
+  <div class="gev-view" data-gev-view="intel-hud"></div>
 
-  <!-- gev:template cockpit -->
-
-  <!-- gev:template display-controls -->
-
-  <!-- gev:template command-dock -->
-
-  <!-- gev:template layer-panels -->
-
-  <!-- gev:template context -->
-
-  <!-- gev:template welcome -->
-
-  <!-- gev:template provider-settings -->
-
-  <!-- gev:template hud-loading -->
+  <!-- Loading screen -->
+  <div id="loading-screen">
+    <div class="loader-content">
+      <span class="loader-logo brand-logo" data-logo-gaze data-logo-src="/logo.svg" aria-hidden="true"><img src="/logo.svg" alt="" /></span>
+      <h2 translate="no">GOD'S EYE <span class="title-accent">VIEW</span></h2>
+      <p class="loader-status" data-i18n>Initializing photorealistic world...</p>
+    </div>
+  </div>
 
   <script type="module" src="/src/main.js"></script>
 </body>