fix: stabilize match3d demo discovery

src/services/match3d-runtime/match3dLocalRuntime.ts

@@ -447,7 +447,10 @@ function settleMatchedTrayItems(
   };
 }
 
-export function startLocalMatch3DRun(clearCount = 12): Match3DRunSnapshot {
+export function startLocalMatch3DRun(
+  clearCount = 12,
+  profileId = 'local-match3d-profile',
+): Match3DRunSnapshot {
   const normalizedClearCount =
     normalizeLocalMatch3DRuntimeClearCount(clearCount);
   const selectedSeeds = selectVisualSeeds(normalizedClearCount);
@@ -467,7 +470,7 @@ export function startLocalMatch3DRun(clearCount = 12): Match3DRunSnapshot {
   const nowMs = Date.now();
   return {
     runId: `local-match3d-run-${nowMs}`,
-    profileId: 'local-match3d-profile',
+    profileId,
     status: 'Running',
     snapshotVersion: 1,
     startedAtMs: nowMs,

src/services/match3d-runtime/match3dRuntimeAdapter.test.ts

@@ -95,7 +95,7 @@ test('local Match3D runtime adapter exposes the same runtime seam as the server
   const started = await adapter.startRun('ignored-local-profile');
   const clickableItem = started.run.items.find((item) => item.clickable);
 
-  expect(started.run.profileId).toBe('local-match3d-profile');
+  expect(started.run.profileId).toBe('ignored-local-profile');
   expect(clickableItem).toBeTruthy();
 
   const clickResult = await adapter.clickItem(started.run.runId, {
@@ -117,6 +117,15 @@ test('local Match3D runtime adapter exposes the same runtime seam as the server
   expect(stopped.run.status).toBe('Stopped');
 });
 
+test('local Match3D runtime adapter keeps the requested profile id on restart', async () => {
+  const adapter = createLocalMatch3DRuntimeAdapter({ clearCount: 1 });
+  const started = await adapter.startRun('match3d-demo-20260525');
+  const restarted = await adapter.restartRun(started.run.runId);
+
+  expect(started.run.profileId).toBe('match3d-demo-20260525');
+  expect(restarted.run.profileId).toBe('match3d-demo-20260525');
+});
+
 test('local Match3D runtime adapter keeps authority run local to the adapter', async () => {
   const adapter = createLocalMatch3DRuntimeAdapter({ initialRun: startLocalMatch3DRun(1) });
   const first = await adapter.getRun('unused-run-id');

src/services/match3d-runtime/match3dRuntimeAdapter.ts

@@ -36,6 +36,7 @@ export type Match3DRuntimeAdapter = {
 
 export type LocalMatch3DRuntimeAdapterOptions = {
   clearCount?: number;
+  profileId?: string;
   initialRun?: Match3DRunResponse['run'];
 };
 
@@ -74,11 +75,16 @@ export function createServerMatch3DRuntimeAdapter(
 export function createLocalMatch3DRuntimeAdapter(
   options: LocalMatch3DRuntimeAdapterOptions = {},
 ): Match3DRuntimeAdapter {
-  let authorityRun = options.initialRun ?? startLocalMatch3DRun(options.clearCount);
+  let authorityRun =
+    options.initialRun ??
+    startLocalMatch3DRun(options.clearCount, options.profileId);
 
   return {
-    async startRun() {
-      authorityRun = startLocalMatch3DRun(options.clearCount);
+    async startRun(profileId) {
+      authorityRun = startLocalMatch3DRun(
+        options.clearCount,
+        profileId || options.profileId,
+      );
       return { run: authorityRun };
     },
     async getRun() {
@@ -91,7 +97,10 @@ export function createLocalMatch3DRuntimeAdapter(
       return result;
     },
     async restartRun() {
-      authorityRun = startLocalMatch3DRun(options.clearCount);
+      authorityRun = startLocalMatch3DRun(
+        options.clearCount,
+        authorityRun.profileId || options.profileId,
+      );
       return { run: authorityRun };
     },
     async stopRun() {