test: 目录对齐赛道二成果物规范（tests/ 迁移+实验报告+提效测量脚本）

- src/test 迁移至根目录 tests/（16 测试 + fixtures/manual），导入改为 ../src/
- 新增 tsconfig.test.json 独立编译测试；.vscode-test.mjs / package.json / .gitignore 同步
- 新增 tests/test-execution-log.md、tests/test-cases.md（116 用例清单）
- 新增 tests/measure/measure-review-time.mjs + performance-comparison.md（提效测量）
- 重命名 3 个中文报告文件为 demo-*-coverage-report.md
- git rm --cached 解除 vsix 跟踪；README 标注演示视频进行中

tests/pipeline.test.ts

@@ -0,0 +1,37 @@
+import * as assert from 'assert';
+import * as vscode from 'vscode';
+import * as path from 'path';
+import { ESLintAdapter } from '../src/adapters/eslint';
+import { mergeResults } from '../src/merger/merger';
+
+suite('Pipeline Tests', () => {
+  test('Full pipeline: linter check + merge', async () => {
+    const adapter = new ESLintAdapter();
+    if (!adapter.isAvailable()) { return; }
+
+    const doc = await vscode.workspace.openTextDocument({
+      content: 'var x = 1;\nvar y = 2;\n',
+      language: 'javascript',
+    });
+
+    const staticResult = await adapter.check(doc, __dirname);
+    assert.ok(staticResult.status === 'ok');
+
+    const report = mergeResults({
+      staticDiagnostics: staticResult.diagnostics,
+      customRuleResults: [],
+      translatedDiagnostics: [],
+      aiFindings: [],
+      errors: [],
+      degraded: false,
+      startTime: Date.now(),
+      filePath: 'virtual-doc',
+      language: 'javascript',
+      adapterIds: ['eslint'],
+    });
+
+    assert.ok(typeof report.duration === 'number');
+    assert.ok(typeof report.linterCount === 'number');
+    assert.strictEqual(report.language, 'javascript');
+  });
+});