Add selectable value face sources

Issue: #378
User-Visible: yes

scripts/model-invariants.mjs

@@ -178,6 +178,17 @@ export function checkReferences({ config, layout = {} } = {}, { notes = [] } = {
             : 'активного маркера-источника не существует');
       }
     }
+    const valueSource = marker?.value_source;
+    if (valueSource?.kind === 'derived_marker_state') {
+      const ref = String(valueSource.ref ?? '');
+      const target = ref.startsWith('marker:') ? ref.slice('marker:'.length) : '';
+      if (!target || !activeLightMarkerIds.has(target)) {
+        add('marker_value_source', markerId, ref || '?',
+          target && activeMarkerIds.has(target)
+            ? 'маркер-цель не является источником света'
+            : 'активного маркера-цели не существует');
+      }
+    }
   }
 
   for (const [key, position] of Object.entries(layout || {})) {

scripts/smoke-links.mjs

@@ -27,6 +27,17 @@
 
 /** @type {SmokeLink[]} */
 export const SMOKE_LINKS = [
+  {
+    symbols: [
+      'resolveValueSource', 'valueSourceWriteFields', 'valueBadgeCandidates',
+      'valueBadgeSourceKey', 'resolveDevicePresentation',
+    ],
+    smokes: ['smoke_value_face_source.mjs'],
+    because: 'the #378 production-bundle scenario observes the shared source resolver through '
+      + 'the real Device dialog, draft preview, persistence, both plan renderers, unavailable '
+      + 'recovery, action dispatch and binding reset; those DOM effects do not call the pure '
+      + 'source helpers by name',
+  },
   {
     symbols: ['roomClimateKey', 'roomClimateMap'],
     smokes: ['smoke_room_climate_placement.mjs'],