game kit gear menu + login form UX polish; left-side position indicator flip

game kit: new Applet model rows (context=game-kit) for Trinkets, Tokens, Card Decks, Dice Sets via applets migration 0008; _game_kit_context() helper in gameboard.views; toggle_game_kit_sections view + URL; new _game_kit_sections.html (HTMX-swappable, visibility-conditional) + _game_kit_applet_menu.html partials; game_kit.html wired to gear btn + menu; Dice Sets now renders _forthcoming.html partial; 16 new green ITs in GameKitViewTest + ToggleGameKitSectionsViewTest

login form: .input-group now position:fixed + vertically centred (top:50%) across all breakpoints as default; landscape block reduced to left/right sidebar offsets only; form-control width 24rem, text-align:center; alert block moved below h2 in base.html; alert margin 0.75rem all sides; home.html header switches between Howdy Stranger (anon) and Dashboard (authed)

room.html position indicators: slots 3/4/5 (AC/SC/EC) column order flipped via SCSS data-slot selectors so .fa-chair sits table-side and label+status icon sit outward

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/static_src/scss/_room.scss

@@ -526,6 +526,13 @@ html:has(.gate-backdrop) .position-strip .gate-slot button { pointer-events: aut
         &.fa-circle-check { color: rgba(var(--priGn), 1); }
     }
 
+    // Left-side positions: flip column order so chair is closest to the table
+    &[data-slot="3"], &[data-slot="4"], &[data-slot="5"] {
+        .fa-chair            { grid-column: 2; }
+        .seat-role-label     { grid-column: 1; }
+        .position-status-icon { grid-column: 1; }
+    }
+
     &.active .fa-chair {
         color: rgba(var(--terUser), 1);
         filter: drop-shadow(0 0 4px rgba(var(--ninUser), 1));