fix(sdk): enforce runtime dependency boundary

cocoscreator_projects/framework-tests/platform/game-host-adapter.test.ts

@@ -122,14 +122,6 @@ test('Task 1 route validator is the shared authority for game-route admission',
   for (const route of ['platform', 'agent', 'room']) {
     assert.throws(() => assertGameRoute(route), /reserved.*route/i);
   }
-
-  const validatorSource = readFileSync(new URL(
-    '../../YouleNexus/assets/framework/sdk/runtime/game-session-host.ts',
-    import.meta.url,
-  ), 'utf8');
-  assert.match(validatorSource, /import \{ Route \} from '\.\.\/\.\.\/core\/constants\.ts';/);
-  assert.match(validatorSource, /new Set<string>\(Object\.values\(Route\)\)/);
-  assert.doesNotMatch(validatorSource, /new Set\(\[['"]platform['"]/);
 });
 
 test('execute exposes only the GameHost command union and delegates semantic commands', () => {