refactor: split native adapter timeout and failure seams

sdk/src/query-native-direct-adapter.test.ts

@@ -0,0 +1,35 @@
+import { describe, expect, it } from 'vitest';
+import { GSDToolsError } from './gsd-tools-error.js';
+import { QueryNativeDirectAdapter } from './query-native-direct-adapter.js';
+
+describe('QueryNativeDirectAdapter', () => {
+  it('wraps native failures as typed failure errors', async () => {
+    const adapter = new QueryNativeDirectAdapter({
+      timeoutMs: 1000,
+      dispatch: async () => {
+        throw new Error('boom');
+      },
+      createTimeoutError: (message, command, args) => GSDToolsError.timeout(message, command, args),
+      createFailureError: (message, command, args, cause) => GSDToolsError.failure(message, command, args, 1, '', { cause }),
+    });
+
+    await expect(adapter.dispatchJson('state', ['load'], 'state.load', [])).rejects.toMatchObject({
+      classification: { kind: 'failure' },
+      command: 'state',
+    });
+  });
+
+  it('preserves timeout errors', async () => {
+    const timeoutErr = GSDToolsError.timeout('timeout', 'state', ['load']);
+    const adapter = new QueryNativeDirectAdapter({
+      timeoutMs: 1000,
+      dispatch: async () => {
+        throw timeoutErr;
+      },
+      createTimeoutError: (message, command, args) => GSDToolsError.timeout(message, command, args),
+      createFailureError: (message, command, args, cause) => GSDToolsError.failure(message, command, args, 1, '', { cause }),
+    });
+
+    await expect(adapter.dispatchJson('state', ['load'], 'state.load', [])).rejects.toBe(timeoutErr);
+  });
+});