修复 AGC 版本测试在 Windows 上的路径问题并澄清 bump-version 提示

- build-release.test.mjs 用 fileURLToPath 替代 URL.pathname，修复 Windows 下 /C:/... 路径导致的 3 个用例失败（既有的跨平台问题）

- bump-version.mjs 的 --no-commit 输出改为“已写入版本文件，未创建提交”，避免被误认为不改文件的干跑

apps/ai-game-creator-shell/scripts/build-release.test.mjs

@@ -1,6 +1,7 @@
 import assert from 'node:assert/strict';
 import { readFileSync } from 'node:fs';
 import { test } from 'node:test';
+import { fileURLToPath } from 'node:url';
 
 import {
   bumpVersion,
@@ -10,7 +11,9 @@ import {
 } from './build-release.mjs';
 
 test('selects an explicit release artifact when configured', () => {
-  const artifactPath = new URL('../package.json', import.meta.url).pathname;
+  const artifactPath = fileURLToPath(
+    new URL('../package.json', import.meta.url),
+  );
   const previous = process.env.AGC_UPDATE_ARTIFACT;
   process.env.AGC_UPDATE_ARTIFACT = artifactPath;
   try {
@@ -30,7 +33,7 @@ test('does not select unsupported files', () => {
 
 test('manifest contains version, download URL and integrity fields', () => {
   const manifest = createUpdateManifest(
-    new URL('../package.json', import.meta.url).pathname,
+    fileURLToPath(new URL('../package.json', import.meta.url)),
   );
   assert.match(manifest.version, /^\d+\.\d+\.\d+$/u);
   assert.match(
@@ -46,7 +49,7 @@ test('manifest preserves multiline release notes', () => {
   process.env.AGC_UPDATE_RELEASE_NOTES = '第一行\n第二行\r\n第三行';
   try {
     const manifest = createUpdateManifest(
-      new URL('../package.json', import.meta.url).pathname,
+      fileURLToPath(new URL('../package.json', import.meta.url)),
     );
     assert.equal(manifest.releaseNotes, '第一行\n第二行\r\n第三行');
   } finally {

apps/ai-game-creator-shell/scripts/bump-version.mjs

@@ -43,7 +43,7 @@ writeVersionFiles(next);
 
 if (noCommit) {
   console.log(
-    `[bump-version] 版本 ${current} -> ${next}（dry-run，未提交，如需提交去掉 --no-commit）`,
+    `[bump-version] 版本 ${current} -> ${next}（已写入版本文件，未创建提交，可用 git diff 复核；去掉 --no-commit 即提交）`,
   );
   process.exit(0);
 }