hex position indicators: chair icons at hex edge midpoints replace gate-slot circles

- Split .gate-overlay into .gate-backdrop (z-100, blur) + .gate-overlay modal (z-120) so .table-position elements (z-110) render above backdrop but below modal
- New _table_positions.html partial: 6 .table-position divs with .fa-chair, role label, and .fa-ban/.fa-circle-check status icons; included unconditionally in room.html
- New epic:room view at /gameboard/room/<uuid>/; gatekeeper redirects there when table_status set; pick_roles redirects there
- role-select.js: adds .active glow to position on selectRole(); swaps .fa-ban→.fa-circle-check in placeCard onComplete; handleTurnChanged clears stale .active from all positions
- FTs: PositionIndicatorsTest (5 tests) + RoleSelectTest 8a/8b (glow + check state)

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

src/apps/epic/urls.py

@@ -6,6 +6,7 @@ app_name = 'epic'
 
 urlpatterns = [
     path('rooms/create_room', views.create_room, name='create_room'),
+    path('room/<uuid:room_id>/', views.room_view, name='room'),
     path('room/<uuid:room_id>/gate/', views.gatekeeper, name='gatekeeper'),
     path('room/<uuid:room_id>/gate/drop_token', views.drop_token, name='drop_token'),
     path('room/<uuid:room_id>/gate/confirm_token', views.confirm_token, name='confirm_token'),