refactor(tests): reorganize integration tests by execution mode

Move non-interactive tests to cli/, interactive tests to interactive/.
Add cron-interactive.test.ts wrapping terminal-capture E2E in vitest.
Update npm scripts and release workflow for new directory layout.

integration-tests/cli/write_file.test.ts

@@ -0,0 +1,69 @@
+/**
+ * @license
+ * Copyright 2025 Google LLC
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+import { describe, it, expect, vi } from 'vitest';
+import {
+  TestRig,
+  createToolCallErrorMessage,
+  printDebugInfo,
+  validateModelOutput,
+} from '../test-helper.js';
+
+describe('write_file', () => {
+  it('should be able to write a file', async () => {
+    const rig = new TestRig();
+    await rig.setup('should be able to write a file');
+    const prompt = `show me an example of using the write tool. put a dad joke in dad.txt`;
+
+    const result = await rig.run(prompt);
+
+    const foundToolCall = await rig.waitForToolCall('write_file');
+
+    // Add debugging information
+    if (!foundToolCall) {
+      printDebugInfo(rig, result);
+    }
+
+    const allTools = rig.readToolLogs();
+    expect(foundToolCall, 'Expected to find a write_file tool call').toBeTruthy(
+      createToolCallErrorMessage(
+        'write_file',
+        allTools.map((t) => t.toolRequest.name),
+        result,
+      ),
+    );
+
+    // Validate model output - will throw if no output, warn if missing expected content
+    validateModelOutput(result, 'dad.txt', 'Write file test');
+
+    const newFilePath = 'dad.txt';
+
+    const newFileContent = rig.readFile(newFilePath);
+
+    // Add debugging for file content
+    if (newFileContent === '') {
+      console.error('File was created but is empty');
+      console.error(
+        'Tool calls:',
+        rig.readToolLogs().map((t) => ({
+          name: t.toolRequest.name,
+          args: t.toolRequest.args,
+        })),
+      );
+    }
+
+    expect(newFileContent).not.toBe('');
+
+    // Log success info if verbose
+    vi.stubEnv('VERBOSE', 'true');
+    if (process.env['VERBOSE'] === 'true') {
+      console.log(
+        'File created successfully with content:',
+        newFileContent.substring(0, 100) + '...',
+      );
+    }
+  });
+});