Close DDD refactor and remove generated asset proxy

src/hooks/useGameFlow.customWorld.test.tsx

@@ -18,8 +18,8 @@ import { useRpgSessionBootstrap } from './rpg-session';
 const aiServiceMocks = vi.hoisted(() => ({
   streamNpcChatTurn: vi.fn(),
 }));
-const rpgRuntimeStoryClientMocks = vi.hoisted(() => ({
-  beginRpgRuntimeStorySession: vi.fn(),
+const runtimeStoryClientMocks = vi.hoisted(() => ({
+  beginRuntimeStorySession: vi.fn(),
 }));
 
 vi.mock('../services/aiService', async () => {
@@ -41,8 +41,8 @@ vi.mock('../services/rpg-runtime/rpgRuntimeStoryClient', async () => {
 
   return {
     ...actual,
-    beginRpgRuntimeStorySession:
-      rpgRuntimeStoryClientMocks.beginRpgRuntimeStorySession,
+    beginRuntimeStorySession:
+      runtimeStoryClientMocks.beginRuntimeStorySession,
   };
 });
 
@@ -588,7 +588,7 @@ function GameFlowHarness({
   );
   const selectedCharacter = playableCharacters[0] ?? null;
   if (selectedCharacter) {
-    rpgRuntimeStoryClientMocks.beginRpgRuntimeStorySession.mockResolvedValue(
+    runtimeStoryClientMocks.beginRuntimeStorySession.mockResolvedValue(
       buildRuntimeStoryBootstrapSnapshot({
         profile,
         character: selectedCharacter,