Sig select: _card-deck.scss extract, WS cursor fixes, own-role indicators, role icon refresh

- New _card-deck.scss: sig select styles moved out of _room.scss + _game-kit.scss
- sig-select.js: 3 WS bug fixes — thumbs-up deferred to window.load (layout settled
  before getBoundingClientRect), hover cursor cleared for all cards on reservation
  (not just the reserved card), applyHover guards against already-reserved roles
- Own-role indicators: gamer now sees their own role-coloured card outline + thumbs-up
- Reservation glow: replaced blurry role+ninUser double-shadow with crisp 2px outline
- Gravity qualifier: Graven text set to --terUser (matches Leavened/--quiUser pattern)
- Role card SVGs refreshed; starter-role-Blank removed
- FTs + Jasmine specs extended for sig select WS behaviour
- setup_sig_session management command for multi-browser manual testing

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

src/templates/apps/gameboard/_partials/_sig_select_overlay.html

@@ -21,9 +21,11 @@ Context: sig_cards, user_polarity, user_seat, sig_reserve_url, sig_reservations_
                 </div>
                 <div class="fan-card-face">
                     <p class="fan-card-name-group"></p>
+                    <p class="sig-qualifier-above"></p>
                     <h3 class="fan-card-name"></h3>
+                    <p class="sig-qualifier-below"></p>
                     <p class="fan-card-arcana"></p>
-                    <p class="fan-card-correspondence"></p>
+                    <p class="fan-card-correspondence"></p>{# not shown in sig-select — game-kit only #}
                 </div>
                 <div class="fan-card-corner fan-card-corner--br">
                     <span class="fan-corner-rank"></span>
@@ -77,9 +79,9 @@ Context: sig_cards, user_polarity, user_seat, sig_reserve_url, sig_reservations_
                     <button class="sig-nvm-btn btn btn-cancel" type="button">NVM</button>
                 </div>
                 <div class="sig-card-cursors">
-                    <span class="sig-cursor sig-cursor--left"></span>
-                    <span class="sig-cursor sig-cursor--mid"></span>
-                    <span class="sig-cursor sig-cursor--right"></span>
+                    <i class="fa-solid fa-hand-pointer sig-cursor sig-cursor--left"></i>
+                    <i class="fa-solid fa-hand-pointer sig-cursor sig-cursor--mid"></i>
+                    <i class="fa-solid fa-hand-pointer sig-cursor sig-cursor--right"></i>
                 </div>
             </div>
             {% endfor %}