diff --git a/README.md b/README.md
index ede706d..6d1761a 100644
--- a/README.md
+++ b/README.md
@@ -47,6 +47,9 @@ npm run dev
 # 类型检查
 npm run typecheck
 
+# 运行测试（Vitest 单元 + 组件测试）
+npm test
+
 # 生产构建
 npm run build
 ```
@@ -83,8 +86,8 @@ src/
 
 - 作者：thzxx
 - 组织：MetonaTeam
-- 开源协议：MIT License（见 [LICENSE](./LICENSE)）
-- 版本：0.2.0
+- 许可证：MIT License（见 [LICENSE](./LICENSE)）
+- 版本：0.2.1
 
 ---
 
diff --git a/docs/应用开发与版本迭代规范.md b/docs/应用开发与版本迭代规范.md
index a34bcf6..71ce7c3 100644
--- a/docs/应用开发与版本迭代规范.md
+++ b/docs/应用开发与版本迭代规范.md
@@ -56,8 +56,8 @@ z = 补丁版本号（Patch）
 ```
 0.1.0   ← 初始版本（已发布）
 0.1.1   ← 体验打磨补丁（已发布）：拖拽编码识别 · 行级右键菜单 · 尾部换行显示修正
-0.2.0   ← 导出差异报告（当前）：HTML / 纯文本 / Markdown 三种格式
-0.2.1   ← 修复该版本 Bug
+0.2.0   ← 导出差异报告（已发布）：HTML / 纯文本 / Markdown 三种格式
+0.2.1   ← 建立测试体系（当前）：Vitest 单元+组件测试 · 测试策略文档
 0.3.0   ← 新增功能
 ...
 0.y.z   ← 长期停留，永不进入 1.x
diff --git a/docs/测试策略与方案.md b/docs/测试策略与方案.md
new file mode 100644
index 0000000..1dba45f
--- /dev/null
+++ b/docs/测试策略与方案.md
@@ -0,0 +1,123 @@
+# DiffLens 测试策略与方案
+
+> 规范化 DiffLens 的测试体系：分层、选型、覆盖重点、运行与质量门禁。
+> 配套文档：《应用开发与版本迭代规范》
+
+---
+
+## 1. 目标与原则
+
+- **保障正确性**：核心 diff 算法与报告生成必须被单元测试覆盖，防止回归
+- **可回归**：每次迭代（`0.y.z`）在前都能稳定跑通测试
+- **简单优先**：不做为测而测，优先覆盖纯逻辑与高风险模块
+- **门禁前置**：`npm test` 纳入提交/推送前的强制检查
+
+---
+
+## 2. 测试分层
+
+| 层级 | 覆盖对象 | 工具 |
+| --- | --- | --- |
+| 单元测试（UT） | 纯逻辑：diff 引擎、报告生成器 | Vitest |
+| 组件测试 | React 组件：应用空态、工具栏交互 | Vitest + Testing Library |
+| 集成（演进中） | Electron IPC / 多进程协作 | 预留 Playwright 或 Electron 测试 |
+
+> 现阶段以**单元 + 组件**为主，覆盖最核心、最易回归的部分。
+
+---
+
+## 3. 技术栈
+
+| 用途 | 选型 |
+| --- | --- |
+| 框架 | Vitest（与 Vite 生态一致，快） |
+| 环境 | jsdom |
+| React 测试 | @testing-library/react |
+| 断言扩展 | @testing-library/jest-dom |
+| 未来 E2E | Playwright（预留，暂不引入） |
+
+---
+
+## 4. 目录结构
+
+```
+vitest.config.ts                      # Vitest 配置（jsdom + 测试范围）
+src/renderer/src/
+├── test/setup.ts                     # 全局 setup：jest-dom 匹配器 + 自动 cleanup
+├── diff/
+│   ├── diffEngine.test.ts            # diff 引擎单元测试
+│   └── report.test.ts                # 报告生成测试
+└── __tests__/
+    └── App.test.tsx                  # 应用冒烟测试
+```
+
+> 约定：测试文件与被测文件同目录（`*.test.ts(x)`），或集中放各模块下 `__tests__`。
+
+---
+
+## 5. 覆盖重点与用例
+
+### 5.1 diff 引擎（`diffEngine.ts`）— 最高优先级
+- 空文本 / 空对非空（全新增）
+- 完全一致 → 全部 `unchanged`，无差异
+- 行级：新增、删除（含左/右行号、空槽 lineNo 为 `null`）
+- 词级：同一删除/新增配对为 `modified` 并产生左右 `segs`
+- 忽略选项：`ignoreCase`、`trimWhitespace` 生效与关闭
+- 行切分：结尾换行不产生多余空行
+
+### 5.2 报告生成（`report.ts`）
+- HTML：输出合法文档、含文件名/统计/类型高亮语义
+- 纯文本：含增删改标记（`+ -`）
+- Markdown：表格化、管道符转义保持表格结构
+- 格式分发与扩展名映射（`REPORT_EXT`）
+
+### 5.3 应用冒烟（`App.tsx`）
+- 渲染应用名 `DiffLens`
+- 未加载文件时展示左右空态面板
+- 未加载文件时不显示导出入口（导出仅在加载后可用）
+
+---
+
+## 6. 运行命令
+
+```bash
+npm test          # 运行全部测试（CI / 提交前）
+npm run test:watch # 监听模式，开发中用
+```
+
+---
+
+## 7. 质量门禁
+
+提交与推送前 **必须全部通过**：
+
+```bash
+npm run typecheck
+npm test
+npm run build
+```
+
+任一失败即禁止提交；修复通过后再提交发布。
+
+---
+
+## 8. 覆盖率目标（演进基线）
+
+| 模块 | 目标 |
+| --- | --- |
+| 逻辑层（diff / report） | ≥ 80% 行覆盖（当前以核心用例保证关键路径） |
+| 组件层（App） | 覆盖主流程空态与关键交互 |
+
+> 具体门槛随各模块成熟度逐步收紧；当前先保证**关键路径断言完整**。
+
+---
+
+## 9. 演进方向（后续迭代）
+
+- 接入 Playwright 对打包后的 Electron 应用做端到端验收
+- 对 IPC 层（open / decode / save-report）补充集成测试
+- 大文件性能基准测试（虚拟滚动落地后）
+
+---
+
+© 2026 MetonaTeam · thzxx · DiffLens
\ No newline at end of file
diff --git a/package-lock.json b/package-lock.json
index b72787e..4bab159 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "DiffLens",
-  "version": "0.2.0",
+  "version": "0.2.1",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "DiffLens",
-      "version": "0.2.0",
+      "version": "0.2.1",
       "license": "MIT",
       "dependencies": {
         "@electron-toolkit/preload": "^3.0.1",
@@ -18,6 +18,8 @@
       },
       "devDependencies": {
         "@electron-toolkit/tsconfig": "^2.0.0",
+        "@testing-library/jest-dom": "^6.10.0",
+        "@testing-library/react": "^16.3.2",
         "@types/diff": "^7.0.0",
         "@types/node": "^22.5.0",
         "@types/react": "^18.3.5",
@@ -26,8 +28,70 @@
         "electron": "^33.0.0",
         "electron-builder": "^25.0.5",
         "electron-vite": "^2.3.0",
+        "jsdom": "^30.0.1",
         "typescript": "^5.6.2",
-        "vite": "^5.4.6"
+        "vite": "^5.4.6",
+        "vitest": "^2.1.9"
+      }
+    },
+    "node_modules/@adobe/css-tools": {
+      "version": "4.5.0",
+      "resolved": "https://registry.npmmirror.com/@adobe/css-tools/-/css-tools-4.5.0.tgz",
+      "integrity": "sha512-6OzddxPio9UiWTCemp4N8cYLV2ZN1ncRnV1cVGtve7dhPOtRkleRyx32GQCYSwDYgaHU3USMm84tNsvKzRCa1Q==",
+      "dev": true,
+      "license": "MIT"
+    },
+    "node_modules/@asamuzakjp/css-color": {
+      "version": "6.0.7",
+      "resolved": "https://registry.npmmirror.com/@asamuzakjp/css-color/-/css-color-6.0.7.tgz",
+      "integrity": "sha512-vC/bk1Lz7Tn/EfU9/apOTBk80/8dyGyWMowPoV1tJ52muDGsDqt2HPT2klrFUiY60MQmQv9q8yIht15JnBgDGw==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@csstools/css-calc": "^3.3.0",
+        "@csstools/css-color-parser": "^4.1.10",
+        "@csstools/css-parser-algorithms": "^4.0.0",
+        "@csstools/css-tokenizer": "^4.0.0",
+        "lru-cache": "^11.5.2"
+      },
+      "engines": {
+        "node": "^22.13.0 || >=24.0.0"
+      }
+    },
+    "node_modules/@asamuzakjp/css-color/node_modules/lru-cache": {
+      "version": "11.5.2",
+      "resolved": "https://registry.npmmirror.com/lru-cache/-/lru-cache-11.5.2.tgz",
+      "integrity": "sha512-4pfM1Ff0x50o0tQwb5ucw/RzNyD0/YJME6IVcStalZuMWxdt3sR3huStTtxz4PUmvZfRguvDejasvQ2kifR11g==",
+      "dev": true,
+      "license": "BlueOak-1.0.0",
+      "engines": {
+        "node": "20 || >=22"
+      }
+    },
+    "node_modules/@asamuzakjp/dom-selector": {
+      "version": "8.3.2",
+      "resolved": "https://registry.npmmirror.com/@asamuzakjp/dom-selector/-/dom-selector-8.3.2.tgz",
+      "integrity": "sha512-93Z1N+BQNXysodoicpOIyNh2drHfz/CTf9nnT0FEx72GJcIiwgydD7tGAr78j41LsYn3hlRn+LdGPuBLn1Bl8Q==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "bidi-js": "^1.0.3",
+        "css-tree": "^3.2.1",
+        "is-potential-custom-element-name": "^1.0.1",
+        "lru-cache": "^11.5.2"
+      },
+      "engines": {
+        "node": "^22.13.0 || >=24.0.0"
+      }
+    },
+    "node_modules/@asamuzakjp/dom-selector/node_modules/lru-cache": {
+      "version": "11.5.2",
+      "resolved": "https://registry.npmmirror.com/lru-cache/-/lru-cache-11.5.2.tgz",
+      "integrity": "sha512-4pfM1Ff0x50o0tQwb5ucw/RzNyD0/YJME6IVcStalZuMWxdt3sR3huStTtxz4PUmvZfRguvDejasvQ2kifR11g==",
+      "dev": true,
+      "license": "BlueOak-1.0.0",
+      "engines": {
+        "node": "20 || >=22"
       }
     },
     "node_modules/@babel/code-frame": {
@@ -280,6 +344,16 @@
         "@babel/core": "^7.0.0-0"
       }
     },
+    "node_modules/@babel/runtime": {
+      "version": "7.29.7",
+      "resolved": "https://registry.npmmirror.com/@babel/runtime/-/runtime-7.29.7.tgz",
+      "integrity": "sha512-Nq8OhGWiZIZGV6hLHoyAKLLcJihP/xFeBMGJoUrxTX2psI8dCifzLhZISFb+VWS3wFMRDmCGw5R+dOySCqPLhw==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=6.9.0"
+      }
+    },
     "node_modules/@babel/template": {
       "version": "7.29.7",
       "resolved": "https://registry.npmmirror.com/@babel/template/-/template-7.29.7.tgz",
@@ -328,6 +402,159 @@
         "node": ">=6.9.0"
       }
     },
+    "node_modules/@bramus/specificity": {
+      "version": "2.4.2",
+      "resolved": "https://registry.npmmirror.com/@bramus/specificity/-/specificity-2.4.2.tgz",
+      "integrity": "sha512-ctxtJ/eA+t+6q2++vj5j7FYX3nRu311q1wfYH3xjlLOsczhlhxAg2FWNUXhpGvAw3BWo1xBcvOV6/YLc2r5FJw==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "css-tree": "^3.0.0"
+      },
+      "bin": {
+        "specificity": "bin/cli.js"
+      }
+    },
+    "node_modules/@csstools/color-helpers": {
+      "version": "6.1.1",
+      "resolved": "https://registry.npmmirror.com/@csstools/color-helpers/-/color-helpers-6.1.1.tgz",
+      "integrity": "sha512-gLNsunvwf3mCi5u5o46/Z/JcJMnhbHSaZ69rkgPzNM3J4s8hWwpPUQB6/tt0EDFyCiWzxANlx+2LJwpYj4zS1w==",
+      "dev": true,
+      "funding": [
+        {
+          "type": "github",
+          "url": "https://github.com/sponsors/csstools"
+        },
+        {
+          "type": "opencollective",
+          "url": "https://opencollective.com/csstools"
+        }
+      ],
+      "license": "MIT-0",
+      "engines": {
+        "node": ">=20.19.0"
+      }
+    },
+    "node_modules/@csstools/css-calc": {
+      "version": "3.3.0",
+      "resolved": "https://registry.npmmirror.com/@csstools/css-calc/-/css-calc-3.3.0.tgz",
+      "integrity": "sha512-c5ihYsPkdG6JCkU2zTMm4+k6r7RXuGxtWYhu5DHMIiF1FHzrfmHL5so11AoFpUv/tu61xfcmT4AmKoFfMPoqdQ==",
+      "dev": true,
+      "funding": [
+        {
+          "type": "github",
+          "url": "https://github.com/sponsors/csstools"
+        },
+        {
+          "type": "opencollective",
+          "url": "https://opencollective.com/csstools"
+        }
+      ],
+      "license": "MIT",
+      "engines": {
+        "node": ">=20.19.0"
+      },
+      "peerDependencies": {
+        "@csstools/css-parser-algorithms": "^4.0.0",
+        "@csstools/css-tokenizer": "^4.0.0"
+      }
+    },
+    "node_modules/@csstools/css-color-parser": {
+      "version": "4.2.0",
+      "resolved": "https://registry.npmmirror.com/@csstools/css-color-parser/-/css-color-parser-4.2.0.tgz",
+      "integrity": "sha512-5+5LEmFuY1AjXdYhmgjTJogtQnP1evJ1zrBZGUNZ0thkpwnnmKxcHdAMn/OtFjAb25zA+jKDVYVRl+5G7rjv1A==",
+      "dev": true,
+      "funding": [
+        {
+          "type": "github",
+          "url": "https://github.com/sponsors/csstools"
+        },
+        {
+          "type": "opencollective",
+          "url": "https://opencollective.com/csstools"
+        }
+      ],
+      "license": "MIT",
+      "dependencies": {
+        "@csstools/color-helpers": "^6.1.1",
+        "@csstools/css-calc": "^3.3.0"
+      },
+      "engines": {
+        "node": ">=20.19.0"
+      },
+      "peerDependencies": {
+        "@csstools/css-parser-algorithms": "^4.0.0",
+        "@csstools/css-tokenizer": "^4.0.0"
+      }
+    },
+    "node_modules/@csstools/css-parser-algorithms": {
+      "version": "4.0.0",
+      "resolved": "https://registry.npmmirror.com/@csstools/css-parser-algorithms/-/css-parser-algorithms-4.0.0.tgz",
+      "integrity": "sha512-+B87qS7fIG3L5h3qwJ/IFbjoVoOe/bpOdh9hAjXbvx0o8ImEmUsGXN0inFOnk2ChCFgqkkGFQ+TpM5rbhkKe4w==",
+      "dev": true,
+      "funding": [
+        {
+          "type": "github",
+          "url": "https://github.com/sponsors/csstools"
+        },
+        {
+          "type": "opencollective",
+          "url": "https://opencollective.com/csstools"
+        }
+      ],
+      "license": "MIT",
+      "engines": {
+        "node": ">=20.19.0"
+      },
+      "peerDependencies": {
+        "@csstools/css-tokenizer": "^4.0.0"
+      }
+    },
+    "node_modules/@csstools/css-syntax-patches-for-csstree": {
+      "version": "1.1.8",
+      "resolved": "https://registry.npmmirror.com/@csstools/css-syntax-patches-for-csstree/-/css-syntax-patches-for-csstree-1.1.8.tgz",
+      "integrity": "sha512-CpMLjAvwQg3BL5S0IeqsZNMH7EQrEWi0kLKOC13ZBF0ZwERiLWlibNPJr8G1kdU3Ms/r2KiNrF81pUh2HwAHdg==",
+      "dev": true,
+      "funding": [
+        {
+          "type": "github",
+          "url": "https://github.com/sponsors/csstools"
+        },
+        {
+          "type": "opencollective",
+          "url": "https://opencollective.com/csstools"
+        }
+      ],
+      "license": "MIT-0",
+      "peerDependencies": {
+        "css-tree": "^3.2.1"
+      },
+      "peerDependenciesMeta": {
+        "css-tree": {
+          "optional": true
+        }
+      }
+    },
+    "node_modules/@csstools/css-tokenizer": {
+      "version": "4.0.0",
+      "resolved": "https://registry.npmmirror.com/@csstools/css-tokenizer/-/css-tokenizer-4.0.0.tgz",
+      "integrity": "sha512-QxULHAm7cNu72w97JUNCBFODFaXpbDg+dP8b/oWFAZ2MTRppA3U00Y2L1HqaS4J6yBqxwa/Y3nMBaxVKbB/NsA==",
+      "dev": true,
+      "funding": [
+        {
+          "type": "github",
+          "url": "https://github.com/sponsors/csstools"
+        },
+        {
+          "type": "opencollective",
+          "url": "https://opencollective.com/csstools"
+        }
+      ],
+      "license": "MIT",
+      "engines": {
+        "node": ">=20.19.0"
+      }
+    },
     "node_modules/@develar/schema-utils": {
       "version": "2.6.5",
       "resolved": "https://registry.npmmirror.com/@develar/schema-utils/-/schema-utils-2.6.5.tgz",
@@ -1132,6 +1359,24 @@
         "node": ">=12"
       }
     },
+    "node_modules/@exodus/bytes": {
+      "version": "1.15.1",
+      "resolved": "https://registry.npmmirror.com/@exodus/bytes/-/bytes-1.15.1.tgz",
+      "integrity": "sha512-S6mL0yNB/Abt9Ei4tq8gDhcczc4S3+vQ4ra7vxnAf+YHC02srtqxKKZghx2Dq6p0e66THKwR6r8N6P95wEty7Q==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": "^20.19.0 || ^22.12.0 || >=24.0.0"
+      },
+      "peerDependencies": {
+        "@noble/hashes": "^1.8.0 || ^2.0.0"
+      },
+      "peerDependenciesMeta": {
+        "@noble/hashes": {
+          "optional": true
+        }
+      }
+    },
     "node_modules/@gar/promisify": {
       "version": "1.1.3",
       "resolved": "https://registry.npmmirror.com/@gar/promisify/-/promisify-1.1.3.tgz",
@@ -1863,6 +2108,85 @@
         "node": ">=10"
       }
     },
+    "node_modules/@testing-library/dom": {
+      "version": "10.4.1",
+      "resolved": "https://registry.npmmirror.com/@testing-library/dom/-/dom-10.4.1.tgz",
+      "integrity": "sha512-o4PXJQidqJl82ckFaXUeoAW+XysPLauYI43Abki5hABd853iMhitooc6znOnczgbTYmEP6U6/y1ZyKAIsvMKGg==",
+      "dev": true,
+      "license": "MIT",
+      "peer": true,
+      "dependencies": {
+        "@babel/code-frame": "^7.10.4",
+        "@babel/runtime": "^7.12.5",
+        "@types/aria-query": "^5.0.1",
+        "aria-query": "5.3.0",
+        "dom-accessibility-api": "^0.5.9",
+        "lz-string": "^1.5.0",
+        "picocolors": "1.1.1",
+        "pretty-format": "^27.0.2"
+      },
+      "engines": {
+        "node": ">=18"
+      }
+    },
+    "node_modules/@testing-library/jest-dom": {
+      "version": "6.10.0",
+      "resolved": "https://registry.npmmirror.com/@testing-library/jest-dom/-/jest-dom-6.10.0.tgz",
+      "integrity": "sha512-HQwu0KaB2zyT0iLzBL+8CLyZDL3KlZlZJ+2iyc9uCUnlJVskJU/UlPuVCyIPhtukjPQdT2QNoR5nCP5FqTmmDQ==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@adobe/css-tools": "^4.4.0",
+        "aria-query": "^5.0.0",
+        "css.escape": "^1.5.1",
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@@ -2411,6 +2856,16 @@
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@@ -2422,6 +2877,16 @@
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@@ -2511,6 +2976,16 @@
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@@ -2876,6 +3351,23 @@
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@@ -2893,6 +3385,16 @@
         "url": "https://github.com/chalk/chalk?sponsor=1"
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+      "dev": true,
+      "license": "MIT",
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@@ -2904,7 +3406,7 @@
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@@ -3255,6 +3757,27 @@
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+      "license": "MIT",
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+        "source-map-js": "^1.2.1"
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+      "resolved": "https://registry.npmmirror.com/css.escape/-/css.escape-1.5.1.tgz",
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@@ -3262,6 +3785,35 @@
       "dev": true,
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+      "resolved": "https://registry.npmmirror.com/data-urls/-/data-urls-7.0.0.tgz",
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+        "whatwg-url": "^16.0.0"
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+      "resolved": "https://registry.npmmirror.com/whatwg-url/-/whatwg-url-16.0.1.tgz",
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@@ -3279,6 +3831,13 @@
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@@ -3306,6 +3865,16 @@
         "url": "https://github.com/sponsors/sindresorhus"
       }
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+      "dev": true,
+      "license": "MIT",
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@@ -3381,6 +3950,16 @@
       "dev": true,
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+      "dev": true,
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@@ -3532,6 +4111,14 @@
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+      "license": "MIT",
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@@ -3577,7 +4164,7 @@
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@@ -3863,6 +4450,19 @@
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+      "license": "BSD-2-Clause",
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@@ -3899,6 +4499,13 @@
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@@ -3997,6 +4604,26 @@
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+      "resolved": "https://registry.npmmirror.com/expect-type/-/expect-type-1.4.0.tgz",
+      "integrity": "sha512-KfYbmpRm0VbLjEvVa9yGwCi9GI34xvi7A/HXYWQO65CSD2u3MczUJSuwXKFIxlGsgBQizV9q5J9NHj4VG0n+pA==",
+      "dev": true,
+      "license": "Apache-2.0",
+      "engines": {
+        "node": ">=12.0.0"
+      }
+    },
     "node_modules/exponential-backoff": {
       "version": "3.1.3",
       "resolved": "https://registry.npmmirror.com/exponential-backoff/-/exponential-backoff-3.1.3.tgz",
@@ -4557,6 +5184,19 @@
       "dev": true,
       "license": "ISC"
     },
+    "node_modules/html-encoding-sniffer": {
+      "version": "6.0.0",
+      "resolved": "https://registry.npmmirror.com/html-encoding-sniffer/-/html-encoding-sniffer-6.0.0.tgz",
+      "integrity": "sha512-CV9TW3Y3f8/wT0BRFc1/KAVQ3TUHiXmaAb6VW9vtiMFf7SLoMd1PdAc4W3KFOFETBJUb90KatHqlsZMWV+R9Gg==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@exodus/bytes": "^1.6.0"
+      },
+      "engines": {
+        "node": "^20.19.0 || ^22.12.0 || >=24.0.0"
+      }
+    },
     "node_modules/http-cache-semantics": {
       "version": "4.2.0",
       "resolved": "https://registry.npmmirror.com/http-cache-semantics/-/http-cache-semantics-4.2.0.tgz",
@@ -4761,8 +5401,15 @@
       "dev": true,
       "license": "MIT"
     },
+    "node_modules/is-potential-custom-element-name": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmmirror.com/is-potential-custom-element-name/-/is-potential-custom-element-name-1.0.1.tgz",
+      "integrity": "sha512-bCYeRA2rVibKZd+s2625gGnGF/t7DSqDs4dP7CrLA1m7jKWz6pps0LpYLJN8Q64HtmPKJ1hrN3nzPNKFEKOUiQ==",
+      "dev": true,
+      "license": "MIT"
+    },
     "node_modules/is-unicode-supported": {
-      "version": "0.2.0",
+      "version": "0.2.1",
       "resolved": "https://registry.npmmirror.com/is-unicode-supported/-/is-unicode-supported-0.1.0.tgz",
       "integrity": "sha512-knxG2q4UC3u8stRGyAVJCOdxFmv5DZiRcdlIaAQXAbSfJya+OhopNotLQrstBhququ4ZpuKbDc/8S6mgXgPFPw==",
       "dev": true,
@@ -4865,6 +5512,57 @@
         "js-yaml": "bin/js-yaml.js"
       }
     },
+    "node_modules/jsdom": {
+      "version": "30.0.1",
+      "resolved": "https://registry.npmmirror.com/jsdom/-/jsdom-30.0.1.tgz",
+      "integrity": "sha512-52v7mUVUfNQVYYqE1lcdaymWL0njO7lTLUog6ZvW2U5KsbiLk/GnZlVJ+qx0xfNJZ6Gn+KSpPNE52vurbxZwrA==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@asamuzakjp/css-color": "^6.0.5",
+        "@asamuzakjp/dom-selector": "^8.3.0",
+        "@bramus/specificity": "^2.4.2",
+        "@csstools/css-syntax-patches-for-csstree": "^1.1.7",
+        "@exodus/bytes": "^1.15.1",
+        "css-tree": "^3.2.1",
+        "data-urls": "^7.0.0",
+        "decimal.js": "^10.6.0",
+        "html-encoding-sniffer": "^6.0.0",
+        "is-potential-custom-element-name": "^1.0.1",
+        "lru-cache": "^11.5.2",
+        "parse5": "^8.0.1",
+        "saxes": "^6.0.0",
+        "symbol-tree": "^3.2.4",
+        "tough-cookie": "^6.0.2",
+        "undici": "^8.9.0",
+        "w3c-xmlserializer": "^5.0.0",
+        "webidl-conversions": "^8.0.1",
+        "whatwg-mimetype": "^5.0.0",
+        "whatwg-url": "^17.1.0",
+        "xml-name-validator": "^5.0.0"
+      },
+      "engines": {
+        "node": "^22.22.2 || ^24.15.0 || >=26.0.0"
+      },
+      "peerDependencies": {
+        "canvas": "^3.2.3"
+      },
+      "peerDependenciesMeta": {
+        "canvas": {
+          "optional": true
+        }
+      }
+    },
+    "node_modules/jsdom/node_modules/lru-cache": {
+      "version": "11.5.2",
+      "resolved": "https://registry.npmmirror.com/lru-cache/-/lru-cache-11.5.2.tgz",
+      "integrity": "sha512-4pfM1Ff0x50o0tQwb5ucw/RzNyD0/YJME6IVcStalZuMWxdt3sR3huStTtxz4PUmvZfRguvDejasvQ2kifR11g==",
+      "dev": true,
+      "license": "BlueOak-1.0.0",
+      "engines": {
+        "node": "20 || >=22"
+      }
+    },
     "node_modules/jsesc": {
       "version": "3.1.0",
       "resolved": "https://registry.npmmirror.com/jsesc/-/jsesc-3.1.0.tgz",
@@ -5062,6 +5760,13 @@
         "loose-envify": "cli.js"
       }
     },
+    "node_modules/loupe": {
+      "version": "3.2.1",
+      "resolved": "https://registry.npmmirror.com/loupe/-/loupe-3.2.1.tgz",
+      "integrity": "sha512-CdzqowRJCeLU72bHvWqwRBBlLcMEtIvGrlvef74kMnV2AolS9Y8xUv1I0U/MNAWMhBlKIoyuEgoJ0t/bbwHbLQ==",
+      "dev": true,
+      "license": "MIT"
+    },
     "node_modules/lowercase-keys": {
       "version": "2.0.0",
       "resolved": "https://registry.npmmirror.com/lowercase-keys/-/lowercase-keys-2.0.0.tgz",
@@ -5081,6 +5786,17 @@
         "yallist": "^3.0.2"
       }
     },
+    "node_modules/lz-string": {
+      "version": "1.5.0",
+      "resolved": "https://registry.npmmirror.com/lz-string/-/lz-string-1.5.0.tgz",
+      "integrity": "sha512-h5bgJWpxJNswbU7qCrV0tIKQCaS3blPDrqKWx+QxzuzL1zGUzij9XCWLrSLsJPu5t+eWA/ycetzYAO5IOMcWAQ==",
+      "dev": true,
+      "license": "MIT",
+      "peer": true,
+      "bin": {
+        "lz-string": "bin/bin.js"
+      }
+    },
     "node_modules/magic-string": {
       "version": "0.30.21",
       "resolved": "https://registry.npmmirror.com/magic-string/-/magic-string-0.30.21.tgz",
@@ -5194,6 +5910,13 @@
         "node": ">= 0.4"
       }
     },
+    "node_modules/mdn-data": {
+      "version": "2.27.1",
+      "resolved": "https://registry.npmmirror.com/mdn-data/-/mdn-data-2.27.1.tgz",
+      "integrity": "sha512-9Yubnt3e8A0OKwxYSXyhLymGW4sCufcLG6VdiDdUGVkPhpqLxlvP5vl1983gQjJl3tqbrM731mjaZaP68AgosQ==",
+      "dev": true,
+      "license": "CC0-1.0"
+    },
     "node_modules/mime": {
       "version": "2.6.0",
       "resolved": "https://registry.npmmirror.com/mime/-/mime-2.6.0.tgz",
@@ -5249,6 +5972,16 @@
         "node": ">=4"
       }
     },
+    "node_modules/min-indent": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmmirror.com/min-indent/-/min-indent-1.0.1.tgz",
+      "integrity": "sha512-I9jwMn07Sy/IwOj3zVkVik2JTvgpaykDZEigL6Rx6N9LbMywwUSMtxET+7lVoDLLd3O3IXwJwvuuns8UB/HeAg==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=4"
+      }
+    },
     "node_modules/minimatch": {
       "version": "10.2.6",
       "resolved": "https://registry.npmmirror.com/minimatch/-/minimatch-10.2.6.tgz",
@@ -5703,6 +6436,19 @@
       "dev": true,
       "license": "BlueOak-1.0.0"
     },
+    "node_modules/parse5": {
+      "version": "8.0.1",
+      "resolved": "https://registry.npmmirror.com/parse5/-/parse5-8.0.1.tgz",
+      "integrity": "sha512-z1e/HMG90obSGeidlli3hj7cbocou0/wa5HacvI3ASx34PecNjNQeaHNo5WIZpWofN9kgkqV1q5YvXe3F0FoPw==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "entities": "^8.0.0"
+      },
+      "funding": {
+        "url": "https://github.com/inikulin/parse5?sponsor=1"
+      }
+    },
     "node_modules/path-is-absolute": {
       "version": "1.0.1",
       "resolved": "https://registry.npmmirror.com/path-is-absolute/-/path-is-absolute-1.0.1.tgz",
@@ -5757,6 +6503,23 @@
         "node": ">=16 || 14 >=14.17"
       }
     },
+    "node_modules/pathe": {
+      "version": "1.1.2",
+      "resolved": "https://registry.npmmirror.com/pathe/-/pathe-1.1.2.tgz",
+      "integrity": "sha512-whLdWMYL2TwI08hn8/ZqAbrVemu0LNaNNJZX73O6qaIdCTfXutsLhMkjdENX0qhsQ9uIimo4/aQOmXkoon2nDQ==",
+      "dev": true,
+      "license": "MIT"
+    },
+    "node_modules/pathval": {
+      "version": "2.0.1",
+      "resolved": "https://registry.npmmirror.com/pathval/-/pathval-2.0.1.tgz",
+      "integrity": "sha512-//nshmD55c46FuFw26xV/xFAaB5HF9Xdap7HJBBnrKdAd6/GxDBaNA1870O79+9ueg61cZLSVc+OaFlfmObYVQ==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">= 14.16"
+      }
+    },
     "node_modules/pe-library": {
       "version": "0.4.1",
       "resolved": "https://registry.npmmirror.com/pe-library/-/pe-library-0.4.1.tgz",
@@ -5829,6 +6592,36 @@
         "node": "^10 || ^12 || >=14"
       }
     },
+    "node_modules/pretty-format": {
+      "version": "27.5.1",
+      "resolved": "https://registry.npmmirror.com/pretty-format/-/pretty-format-27.5.1.tgz",
+      "integrity": "sha512-Qb1gy5OrP5+zDf2Bvnzdl3jsTf1qXVMazbvCoKhtKqVs4/YK4ozX4gKQJJVyNe+cajNPn0KoC0MC3FUmaHWEmQ==",
+      "dev": true,
+      "license": "MIT",
+      "peer": true,
+      "dependencies": {
+        "ansi-regex": "^5.0.1",
+        "ansi-styles": "^5.0.0",
+        "react-is": "^17.0.1"
+      },
+      "engines": {
+        "node": "^10.13.0 || ^12.13.0 || ^14.15.0 || >=15.0.0"
+      }
+    },
+    "node_modules/pretty-format/node_modules/ansi-styles": {
+      "version": "5.2.0",
+      "resolved": "https://registry.npmmirror.com/ansi-styles/-/ansi-styles-5.2.0.tgz",
+      "integrity": "sha512-Cxwpt2SfTzTtXcfOlzGEee8O+c+MmUgGrNiBcXnuWxuFJHe6a5Hz7qwhwe5OgaSYI0IJvkLqWX1ASG+cJOkEiA==",
+      "dev": true,
+      "license": "MIT",
+      "peer": true,
+      "engines": {
+        "node": ">=10"
+      },
+      "funding": {
+        "url": "https://github.com/chalk/ansi-styles?sponsor=1"
+      }
+    },
     "node_modules/process-nextick-args": {
       "version": "2.0.1",
       "resolved": "https://registry.npmmirror.com/process-nextick-args/-/process-nextick-args-2.0.1.tgz",
@@ -5924,6 +6717,14 @@
         "react": "^18.3.1"
       }
     },
+    "node_modules/react-is": {
+      "version": "17.0.2",
+      "resolved": "https://registry.npmmirror.com/react-is/-/react-is-17.0.2.tgz",
+      "integrity": "sha512-w2GsyukL62IJnlaff/nRegPQR94C/XXamvMWmSHRJ4y7Ts/4ocGRmTHvOs8PSE6pB3dWOrD/nueuU5sduBsQ4w==",
+      "dev": true,
+      "license": "MIT",
+      "peer": true
+    },
     "node_modules/react-refresh": {
       "version": "0.17.0",
       "resolved": "https://registry.npmmirror.com/react-refresh/-/react-refresh-0.17.0.tgz",
@@ -6006,6 +6807,20 @@
         "node": ">=10"
       }
     },
+    "node_modules/redent": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmmirror.com/redent/-/redent-3.0.0.tgz",
+      "integrity": "sha512-6tDA8g98We0zd0GvVeMT9arEOnTw9qM03L9cJXaCjrip1OO764RDBLBfrB4cwzNGDj5OA5ioymC9GkizgWJDUg==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "indent-string": "^4.0.0",
+        "strip-indent": "^3.0.0"
+      },
+      "engines": {
+        "node": ">=8"
+      }
+    },
     "node_modules/require-directory": {
       "version": "2.1.1",
       "resolved": "https://registry.npmmirror.com/require-directory/-/require-directory-2.1.1.tgz",
@@ -6016,6 +6831,16 @@
         "node": ">=0.10.0"
       }
     },
+    "node_modules/require-from-string": {
+      "version": "2.0.2",
+      "resolved": "https://registry.npmmirror.com/require-from-string/-/require-from-string-2.0.2.tgz",
+      "integrity": "sha512-Xf0nWe6RseziFMu+Ap9biiUbmplq6S9/p+7w7YXP/JBHhrUDDUhwa+vANyubuqfZWTveU//DYVGsDG7RKL/vEw==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=0.10.0"
+      }
+    },
     "node_modules/resedit": {
       "version": "1.7.2",
       "resolved": "https://registry.npmmirror.com/resedit/-/resedit-1.7.2.tgz",
@@ -6204,6 +7029,19 @@
         "node": ">=11.0.0"
       }
     },
+    "node_modules/saxes": {
+      "version": "6.0.0",
+      "resolved": "https://registry.npmmirror.com/saxes/-/saxes-6.0.0.tgz",
+      "integrity": "sha512-xAg7SOnEhrm5zI3puOOKyy1OMcMlIJZYNJY7xLBwSze0UjhPLnWfj2GF2EpT0jmzaJKIWKHLsaSSajf35bcYnA==",
+      "dev": true,
+      "license": "ISC",
+      "dependencies": {
+        "xmlchars": "^2.2.0"
+      },
+      "engines": {
+        "node": ">=v12.22.7"
+      }
+    },
     "node_modules/scheduler": {
       "version": "0.23.2",
       "resolved": "https://registry.npmmirror.com/scheduler/-/scheduler-0.23.2.tgz",
@@ -6275,6 +7113,13 @@
         "node": ">=8"
       }
     },
+    "node_modules/siginfo": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmmirror.com/siginfo/-/siginfo-2.0.0.tgz",
+      "integrity": "sha512-ybx0WO1/8bSBLEWXZvEd7gMW3Sn3JFlW3TvX1nREbDLRNQNaeNN8WK0meBwPdAaOI7TtRRRJn/Es1zhrrCHu7g==",
+      "dev": true,
+      "license": "ISC"
+    },
     "node_modules/signal-exit": {
       "version": "3.0.7",
       "resolved": "https://registry.npmmirror.com/signal-exit/-/signal-exit-3.0.7.tgz",
@@ -6429,6 +7274,13 @@
         "node": "^12.13.0 || ^14.15.0 || >=16.0.0"
       }
     },
+    "node_modules/stackback": {
+      "version": "0.0.2",
+      "resolved": "https://registry.npmmirror.com/stackback/-/stackback-0.0.2.tgz",
+      "integrity": "sha512-1XMJE5fQo1jGH6Y/7ebnwPOBEkIEnT4QF32d5R1+VXdXveM0IBMJt8zfaxX1P3QhVwrYe+576+jkANtSS2mBbw==",
+      "dev": true,
+      "license": "MIT"
+    },
     "node_modules/stat-mode": {
       "version": "1.0.0",
       "resolved": "https://registry.npmmirror.com/stat-mode/-/stat-mode-1.0.0.tgz",
@@ -6439,6 +7291,13 @@
         "node": ">= 6"
       }
     },
+    "node_modules/std-env": {
+      "version": "3.10.0",
+      "resolved": "https://registry.npmmirror.com/std-env/-/std-env-3.10.0.tgz",
+      "integrity": "sha512-5GS12FdOZNliM5mAOxFRg7Ir0pWz8MdpYm6AY6VPkGpbA7ZzmbzNcBJQ0GPvvyWgcY7QAhCgf9Uy89I03faLkg==",
+      "dev": true,
+      "license": "MIT"
+    },
     "node_modules/string_decoder": {
       "version": "1.3.0",
       "resolved": "https://registry.npmmirror.com/string_decoder/-/string_decoder-1.3.0.tgz",
@@ -6507,6 +7366,19 @@
         "node": ">=8"
       }
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+    "node_modules/strip-indent": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmmirror.com/strip-indent/-/strip-indent-3.0.0.tgz",
+      "integrity": "sha512-laJTa3Jb+VQpaC6DseHhF7dXVqHTfJPCRDaEbid/drOhgitgYku/letMUqOXFoWV0zIIUbjpdH2t+tYj4bQMRQ==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "min-indent": "^1.0.0"
+      },
+      "engines": {
+        "node": ">=8"
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     "node_modules/sumchecker": {
       "version": "3.0.1",
       "resolved": "https://registry.npmmirror.com/sumchecker/-/sumchecker-3.0.1.tgz",
@@ -6532,6 +7404,13 @@
         "node": ">=8"
       }
     },
+    "node_modules/symbol-tree": {
+      "version": "3.2.4",
+      "resolved": "https://registry.npmmirror.com/symbol-tree/-/symbol-tree-3.2.4.tgz",
+      "integrity": "sha512-9QNk5KwDF+Bvz+PyObkmSYjI5ksVUYtjW7AU22r2NKcfLJcXp96hkDWU3+XndOsUb+AQ9QhfzfCT2O+CNWT5Tw==",
+      "dev": true,
+      "license": "MIT"
+    },
     "node_modules/tar": {
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       "resolved": "https://registry.npmmirror.com/tar/-/tar-6.2.1.tgz",
@@ -6634,6 +7513,70 @@
         "node": ">= 10.0.0"
       }
     },
+    "node_modules/tinybench": {
+      "version": "2.9.0",
+      "resolved": "https://registry.npmmirror.com/tinybench/-/tinybench-2.9.0.tgz",
+      "integrity": "sha512-0+DUvqWMValLmha6lr4kD8iAMK1HzV0/aKnCtWb9v9641TnP/MFb7Pc2bxoxQjTXAErryXVgUOfv2YqNllqGeg==",
+      "dev": true,
+      "license": "MIT"
+    },
+    "node_modules/tinyexec": {
+      "version": "0.3.2",
+      "resolved": "https://registry.npmmirror.com/tinyexec/-/tinyexec-0.3.2.tgz",
+      "integrity": "sha512-KQQR9yN7R5+OSwaK0XQoj22pwHoTlgYqmUscPYoknOoWCWfj/5/ABTMRi69FrKU5ffPVh5QcFikpWJI/P1ocHA==",
+      "dev": true,
+      "license": "MIT"
+    },
+    "node_modules/tinypool": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmmirror.com/tinypool/-/tinypool-1.1.1.tgz",
+      "integrity": "sha512-Zba82s87IFq9A9XmjiX5uZA/ARWDrB03OHlq+Vw1fSdt0I+4/Kutwy8BP4Y/y/aORMo61FQ0vIb5j44vSo5Pkg==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": "^18.0.0 || >=20.0.0"
+      }
+    },
+    "node_modules/tinyrainbow": {
+      "version": "1.2.0",
+      "resolved": "https://registry.npmmirror.com/tinyrainbow/-/tinyrainbow-1.2.0.tgz",
+      "integrity": "sha512-weEDEq7Z5eTHPDh4xjX789+fHfF+P8boiFB+0vbWzpbnbsEr/GRaohi/uMKxg8RZMXnl1ItAi/IUHWMsjDV7kQ==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=14.0.0"
+      }
+    },
+    "node_modules/tinyspy": {
+      "version": "3.0.2",
+      "resolved": "https://registry.npmmirror.com/tinyspy/-/tinyspy-3.0.2.tgz",
+      "integrity": "sha512-n1cw8k1k0x4pgA2+9XrOkFydTerNcJ1zWCO5Nn9scWHTD+5tp8dghT2x1uduQePZTZgd3Tupf+x9BxJjeJi77Q==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=14.0.0"
+      }
+    },
+    "node_modules/tldts": {
+      "version": "7.4.10",
+      "resolved": "https://registry.npmmirror.com/tldts/-/tldts-7.4.10.tgz",
+      "integrity": "sha512-GgouD1B+sWwvkaEq8vXC15DjQitxbvs12oIXELpconwm+Tg3zfcEv4jgzq3vtKverDXsg3VI8aRgNL2Nra0Iog==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "tldts-core": "^7.4.10"
+      },
+      "bin": {
+        "tldts": "bin/cli.js"
+      }
+    },
+    "node_modules/tldts-core": {
+      "version": "7.4.10",
+      "resolved": "https://registry.npmmirror.com/tldts-core/-/tldts-core-7.4.10.tgz",
+      "integrity": "sha512-KnQjp53ZekKgm/r3l+u8kJGGzYgrWdP8+Mql7a4vijh2WE0IrZWspQj/TpTxDho/YxO+AnOZnIjQcCD+q6iJsw==",
+      "dev": true,
+      "license": "MIT"
+    },
     "node_modules/tmp": {
       "version": "0.2.7",
       "resolved": "https://registry.npmmirror.com/tmp/-/tmp-0.2.7.tgz",
@@ -6654,6 +7597,32 @@
         "tmp": "^0.2.0"
       }
     },
+    "node_modules/tough-cookie": {
+      "version": "6.0.2",
+      "resolved": "https://registry.npmmirror.com/tough-cookie/-/tough-cookie-6.0.2.tgz",
+      "integrity": "sha512-exgYmnmL/sJpR3upZfXG5PoatXQii55xAiXGXzY+sROLZ/Y+SLcp9PgJNI9Vz37HpQ74WvDcLT8eqm+kV3FzrA==",
+      "dev": true,
+      "license": "BSD-3-Clause",
+      "dependencies": {
+        "tldts": "^7.0.5"
+      },
+      "engines": {
+        "node": ">=16"
+      }
+    },
+    "node_modules/tr46": {
+      "version": "6.0.0",
+      "resolved": "https://registry.npmmirror.com/tr46/-/tr46-6.0.0.tgz",
+      "integrity": "sha512-bLVMLPtstlZ4iMQHpFHTR7GAGj2jxi8Dg0s2h2MafAE4uSWF98FC/3MomU51iQAMf8/qDUbKWf5GxuvvVcXEhw==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "punycode": "^2.3.1"
+      },
+      "engines": {
+        "node": ">=20"
+      }
+    },
     "node_modules/truncate-utf8-bytes": {
       "version": "1.0.2",
       "resolved": "https://registry.npmmirror.com/truncate-utf8-bytes/-/truncate-utf8-bytes-1.0.2.tgz",
@@ -6691,6 +7660,16 @@
         "node": ">=14.17"
       }
     },
+    "node_modules/undici": {
+      "version": "8.10.0",
+      "resolved": "https://registry.npmmirror.com/undici/-/undici-8.10.0.tgz",
+      "integrity": "sha512-HvltHd7avK13QIw/oLe4qoOLyoVSoafqJ2jYOrtMRBkbYT31eiBQ8O0ehRKZiEZCMEyLFQNIADpgCWC5fALvYQ==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=22.19.0"
+      }
+    },
     "node_modules/undici-types": {
       "version": "6.21.0",
       "resolved": "https://registry.npmmirror.com/undici-types/-/undici-types-6.21.0.tgz",
@@ -6863,6 +7842,108 @@
         }
       }
     },
+    "node_modules/vite-node": {
+      "version": "2.1.9",
+      "resolved": "https://registry.npmmirror.com/vite-node/-/vite-node-2.1.9.tgz",
+      "integrity": "sha512-AM9aQ/IPrW/6ENLQg3AGY4K1N2TGZdR5e4gu/MmmR2xR3Ll1+dib+nook92g4TV3PXVyeyxdWwtaCAiUL0hMxA==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "cac": "^6.7.14",
+        "debug": "^4.3.7",
+        "es-module-lexer": "^1.5.4",
+        "pathe": "^1.1.2",
+        "vite": "^5.0.0"
+      },
+      "bin": {
+        "vite-node": "vite-node.mjs"
+      },
+      "engines": {
+        "node": "^18.0.0 || >=20.0.0"
+      },
+      "funding": {
+        "url": "https://opencollective.com/vitest"
+      }
+    },
+    "node_modules/vitest": {
+      "version": "2.1.9",
+      "resolved": "https://registry.npmmirror.com/vitest/-/vitest-2.1.9.tgz",
+      "integrity": "sha512-MSmPM9REYqDGBI8439mA4mWhV5sKmDlBKWIYbA3lRb2PTHACE0mgKwA8yQ2xq9vxDTuk4iPrECBAEW2aoFXY0Q==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@vitest/expect": "2.1.9",
+        "@vitest/mocker": "2.1.9",
+        "@vitest/pretty-format": "^2.1.9",
+        "@vitest/runner": "2.1.9",
+        "@vitest/snapshot": "2.1.9",
+        "@vitest/spy": "2.1.9",
+        "@vitest/utils": "2.1.9",
+        "chai": "^5.1.2",
+        "debug": "^4.3.7",
+        "expect-type": "^1.1.0",
+        "magic-string": "^0.30.12",
+        "pathe": "^1.1.2",
+        "std-env": "^3.8.0",
+        "tinybench": "^2.9.0",
+        "tinyexec": "^0.3.1",
+        "tinypool": "^1.0.1",
+        "tinyrainbow": "^1.2.0",
+        "vite": "^5.0.0",
+        "vite-node": "2.1.9",
+        "why-is-node-running": "^2.3.0"
+      },
+      "bin": {
+        "vitest": "vitest.mjs"
+      },
+      "engines": {
+        "node": "^18.0.0 || >=20.0.0"
+      },
+      "funding": {
+        "url": "https://opencollective.com/vitest"
+      },
+      "peerDependencies": {
+        "@edge-runtime/vm": "*",
+        "@types/node": "^18.0.0 || >=20.0.0",
+        "@vitest/browser": "2.1.9",
+        "@vitest/ui": "2.1.9",
+        "happy-dom": "*",
+        "jsdom": "*"
+      },
+      "peerDependenciesMeta": {
+        "@edge-runtime/vm": {
+          "optional": true
+        },
+        "@types/node": {
+          "optional": true
+        },
+        "@vitest/browser": {
+          "optional": true
+        },
+        "@vitest/ui": {
+          "optional": true
+        },
+        "happy-dom": {
+          "optional": true
+        },
+        "jsdom": {
+          "optional": true
+        }
+      }
+    },
+    "node_modules/w3c-xmlserializer": {
+      "version": "5.0.0",
+      "resolved": "https://registry.npmmirror.com/w3c-xmlserializer/-/w3c-xmlserializer-5.0.0.tgz",
+      "integrity": "sha512-o8qghlI8NZHU1lLPrpi2+Uq7abh4GGPpYANlalzWxyWteJOCsr/P+oPBA49TOLu5FTZO4d3F9MnWJfiMo4BkmA==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "xml-name-validator": "^5.0.0"
+      },
+      "engines": {
+        "node": ">=18"
+      }
+    },
     "node_modules/wcwidth": {
       "version": "1.0.1",
       "resolved": "https://registry.npmmirror.com/wcwidth/-/wcwidth-1.0.1.tgz",
@@ -6873,6 +7954,41 @@
         "defaults": "^1.0.3"
       }
     },
+    "node_modules/webidl-conversions": {
+      "version": "8.0.1",
+      "resolved": "https://registry.npmmirror.com/webidl-conversions/-/webidl-conversions-8.0.1.tgz",
+      "integrity": "sha512-BMhLD/Sw+GbJC21C/UgyaZX41nPt8bUTg+jWyDeg7e7YN4xOM05YPSIXceACnXVtqyEw/LMClUQMtMZ+PGGpqQ==",
+      "dev": true,
+      "license": "BSD-2-Clause",
+      "engines": {
+        "node": ">=20"
+      }
+    },
+    "node_modules/whatwg-mimetype": {
+      "version": "5.0.0",
+      "resolved": "https://registry.npmmirror.com/whatwg-mimetype/-/whatwg-mimetype-5.0.0.tgz",
+      "integrity": "sha512-sXcNcHOC51uPGF0P/D4NVtrkjSU2fNsm9iog4ZvZJsL3rjoDAzXZhkm2MWt1y+PUdggKAYVoMAIYcs78wJ51Cw==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=20"
+      }
+    },
+    "node_modules/whatwg-url": {
+      "version": "17.1.0",
+      "resolved": "https://registry.npmmirror.com/whatwg-url/-/whatwg-url-17.1.0.tgz",
+      "integrity": "sha512-3GeworPmc2ZfEEHP7lEbUfBX/L75wdEsi0rLNhXcXxnoN5jyq0SL5gCy06SGW2cyTIZdTvWIDQNQoza++vKeaw==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@exodus/bytes": "^1.15.1",
+        "tr46": "^6.0.0",
+        "webidl-conversions": "^8.0.1"
+      },
+      "engines": {
+        "node": "^22.14.0 || >=24.0.0"
+      }
+    },
     "node_modules/which": {
       "version": "2.0.2",
       "resolved": "https://registry.npmmirror.com/which/-/which-2.0.2.tgz",
@@ -6889,6 +8005,23 @@
         "node": ">= 8"
       }
     },
+    "node_modules/why-is-node-running": {
+      "version": "2.3.0",
+      "resolved": "https://registry.npmmirror.com/why-is-node-running/-/why-is-node-running-2.3.0.tgz",
+      "integrity": "sha512-hUrmaWBdVDcxvYqnyh09zunKzROWjbZTiNy8dBEjkS7ehEDQibXJ7XvlmtbwuTclUiIyN+CyXQD4Vmko8fNm8w==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "siginfo": "^2.0.0",
+        "stackback": "0.0.2"
+      },
+      "bin": {
+        "why-is-node-running": "cli.js"
+      },
+      "engines": {
+        "node": ">=8"
+      }
+    },
     "node_modules/wide-align": {
       "version": "1.1.5",
       "resolved": "https://registry.npmmirror.com/wide-align/-/wide-align-1.1.5.tgz",
@@ -6942,6 +8075,16 @@
       "integrity": "sha512-l4Sp/DRseor9wL6EvV2+TuQn63dMkPjZ/sp9XkghTEbV9KlPS1xUsZ3u7/IQO4wxtcFB4bgpQPRcR3QCvezPcQ==",
       "license": "ISC"
     },
+    "node_modules/xml-name-validator": {
+      "version": "5.0.0",
+      "resolved": "https://registry.npmmirror.com/xml-name-validator/-/xml-name-validator-5.0.0.tgz",
+      "integrity": "sha512-EvGK8EJ3DhaHfbRlETOWAS5pO9MZITeauHKJyb8wyajUfQUenkIg2MvLDTZ4T/TgIcm3HU0TFBgWWboAZ30UHg==",
+      "dev": true,
+      "license": "Apache-2.0",
+      "engines": {
+        "node": ">=18"
+      }
+    },
     "node_modules/xmlbuilder": {
       "version": "15.1.1",
       "resolved": "https://registry.npmmirror.com/xmlbuilder/-/xmlbuilder-15.1.1.tgz",
@@ -6952,6 +8095,13 @@
         "node": ">=8.0"
       }
     },
+    "node_modules/xmlchars": {
+      "version": "2.2.0",
+      "resolved": "https://registry.npmmirror.com/xmlchars/-/xmlchars-2.2.0.tgz",
+      "integrity": "sha512-JZnDKK8B0RCDw84FNdDAIpZK+JuJw+s7Lz8nksI7SIuU3UXJJslUthsi+uWBUYOwPFwW7W7PRLRfUKpxjtjFCw==",
+      "dev": true,
+      "license": "MIT"
+    },
     "node_modules/y18n": {
       "version": "5.0.8",
       "resolved": "https://registry.npmmirror.com/y18n/-/y18n-5.0.8.tgz",
@@ -7009,7 +8159,7 @@
       }
     },
     "node_modules/yocto-queue": {
-      "version": "0.2.0",
+      "version": "0.2.1",
       "resolved": "https://registry.npmmirror.com/yocto-queue/-/yocto-queue-0.1.0.tgz",
       "integrity": "sha512-rVksvsnNCdJ/ohGc6xgPwyN8eheCxsiLM8mxuE/t/mOVqJewPuO1miLpTHQiRgTKCLexL4MeAFVagts7HmNZ2Q==",
       "dev": true,
diff --git a/package.json b/package.json
index 43e6081..ae71ee6 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "DiffLens",
-  "version": "0.2.0",
+  "version": "0.2.1",
   "description": "DiffLens — 精美酷炫的文本对比桌面应用",
   "author": "thzxx",
   "license": "MIT",
@@ -12,6 +12,8 @@
     "typecheck:node": "tsc --noEmit -p tsconfig.node.json --composite false",
     "typecheck:web": "tsc --noEmit -p tsconfig.web.json --composite false",
     "typecheck": "npm run typecheck:node && npm run typecheck:web",
+    "test": "vitest run",
+    "test:watch": "vitest",
     "build": "electron-vite build",
     "build:win": "electron-vite build && electron-builder --win",
     "build:mac": "electron-vite build && electron-builder --mac",
@@ -27,6 +29,8 @@
   },
   "devDependencies": {
     "@electron-toolkit/tsconfig": "^2.0.0",
+    "@testing-library/jest-dom": "^6.10.0",
+    "@testing-library/react": "^16.3.2",
     "@types/diff": "^7.0.0",
     "@types/node": "^22.5.0",
     "@types/react": "^18.3.5",
@@ -35,8 +39,10 @@
     "electron": "^33.0.0",
     "electron-builder": "^25.0.5",
     "electron-vite": "^2.3.0",
+    "jsdom": "^30.0.1",
     "typescript": "^5.6.2",
-    "vite": "^5.4.6"
+    "vite": "^5.4.6",
+    "vitest": "^2.1.9"
   },
   "allowScripts": {
     "esbuild@0.21.5": true,
diff --git a/src/renderer/src/__tests__/App.test.tsx b/src/renderer/src/__tests__/App.test.tsx
new file mode 100644
index 0000000..bc0165e
--- /dev/null
+++ b/src/renderer/src/__tests__/App.test.tsx
@@ -0,0 +1,21 @@
+import { describe, it, expect } from 'vitest'
+import { render, screen } from '@testing-library/react'
+import App from '../App'
+
+describe('App - 初始空态', () => {
+  it('渲染应用名称 DiffLens', () => {
+    render(<App />)
+    expect(screen.getByText('DiffLens')).toBeInTheDocument()
+  })
+
+  it('展示左右两个空态文件面板', () => {
+    render(<App />)
+    expect(screen.getByText(/选择左侧文件/)).toBeInTheDocument()
+    expect(screen.getByText(/选择右侧文件/)).toBeInTheDocument()
+  })
+
+  it('未加载文件时不显示导出入口', () => {
+    render(<App />)
+    expect(screen.queryByText('导出报告')).not.toBeInTheDocument()
+  })
+})
\ No newline at end of file
diff --git a/src/renderer/src/diff/diffEngine.test.ts b/src/renderer/src/diff/diffEngine.test.ts
new file mode 100644
index 0000000..4965c08
--- /dev/null
+++ b/src/renderer/src/diff/diffEngine.test.ts
@@ -0,0 +1,94 @@
+import { describe, it, expect } from 'vitest'
+import { computeDiff } from './diffEngine'
+
+describe('computeDiff - 空文本', () => {
+  it('空 vs 空 不产生任何行', () => {
+    const { rows, summary } = computeDiff('', '')
+    expect(rows).toHaveLength(0)
+    expect(summary.changedLines).toBe(0)
+  })
+
+  it('空 vs 非空 全部为新增行', () => {
+    const { rows, summary } = computeDiff('', 'a\nb')
+    expect(rows).toHaveLength(2)
+    expect(rows.every((r) => r.rowKind === 'added')).toBe(true)
+    expect(summary.inserted).toBe(2)
+  })
+})
+
+describe('computeDiff - 全同 / 无差异', () => {
+  it('内容完全相同：全部 unchanged', () => {
+    const { rows, summary } = computeDiff('line1\nline2', 'line1\nline2')
+    expect(summary.changedLines).toBe(0)
+    expect(rows.every((r) => r.rowKind === 'unchanged')).toBe(true)
+  })
+})
+
+describe('computeDiff - 行级增删', () => {
+  it('新增行', () => {
+    const { rows, summary } = computeDiff('a', 'a\nb')
+    const added = rows.filter((r) => r.rowKind === 'added')
+    expect(added).toHaveLength(1)
+    expect(added[0].right.lineNo).toBe(2)
+    expect(added[0].right.text).toBe('b')
+    expect(added[0].left.lineNo).toBeNull()
+    expect(summary.inserted).toBe(1)
+  })
+
+  it('删除行', () => {
+    const { rows, summary } = computeDiff('a\nb', 'a')
+    const removed = rows.filter((r) => r.rowKind === 'removed')
+    expect(removed).toHaveLength(1)
+    expect(removed[0].left.lineNo).toBe(2)
+    expect(removed[0].left.text).toBe('b')
+    expect(removed[0].right.lineNo).toBeNull()
+    expect(summary.deleted).toBe(1)
+  })
+})
+
+describe('computeDiff - 词级修改', () => {
+  it('同一删除/新增配对为 modified 并产生 segs', () => {
+    const { rows, summary } = computeDiff('hello world', 'hello moon')
+    expect(summary.modified).toBe(1)
+    const m = rows.find((r) => r.rowKind === 'modified')
+    expect(m).toBeDefined()
+    expect(m!.left.segs).not.toBeNull()
+    expect(m!.right.segs).not.toBeNull()
+    expect(m!.left.segs!.some((s) => s.kind === 'delete' && s.text.includes('world'))).toBe(true)
+    expect(m!.right.segs!.some((s) => s.kind === 'insert' && s.text.includes('moon'))).toBe(true)
+    expect(m!.left.lineNo).toBe(1)
+    expect(m!.right.lineNo).toBe(1)
+  })
+
+  it('删除多于新增时长侧补空槽', () => {
+    const { rows } = computeDiff('a\nb', 'a')
+    const removed = rows.find((r) => r.rowKind === 'removed')
+    expect(removed!.right.text).toBeNull()
+  })
+})
+
+describe('computeDiff - 忽略选项', () => {
+  it('忽略大小写', () => {
+    const { summary } = computeDiff('Alpha', 'alpha', { ignoreCase: true })
+    expect(summary.changedLines).toBe(0)
+  })
+
+  it('忽略行首尾空白', () => {
+    const { summary } = computeDiff('  value  ', 'value', { trimWhitespace: true })
+    expect(summary.changedLines).toBe(0)
+  })
+
+  it('未开启忽略时同一纯净差异仍被识别', () => {
+    const { summary } = computeDiff('  value  ', 'value')
+    expect(summary.changedLines).toBeGreaterThan(0)
+  })
+})
+
+describe('computeDiff - 行切分细节', () => {
+  it('结尾换行不产生多余空行', () => {
+    const { rows, summary } = computeDiff('a\n', 'a')
+    expect(rows).toHaveLength(1)
+    expect(rows[0].rowKind).toBe('unchanged')
+    expect(summary.changedLines).toBe(0)
+  })
+})
\ No newline at end of file
diff --git a/src/renderer/src/diff/report.test.ts b/src/renderer/src/diff/report.test.ts
new file mode 100644
index 0000000..1fd9f18
--- /dev/null
+++ b/src/renderer/src/diff/report.test.ts
@@ -0,0 +1,63 @@
+import { describe, it, expect } from 'vitest'
+import { computeDiff } from './diffEngine'
+import { buildHtmlReport, buildTxtReport, buildMarkdownReport, buildReport, REPORT_EXT } from './report'
+
+const ctx = { leftName: 'a.txt', rightName: 'b.txt', leftEncoding: 'UTF-8', rightEncoding: 'UTF-8' }
+
+describe('buildHtmlReport', () => {
+  const { rows, summary } = computeDiff('line1\nline2', 'line1\nline3')
+
+  it('输出合法 HTML 文档并包含核心信息', () => {
+    const html = buildHtmlReport(rows, ctx, summary)
+    expect(html).toContain('<!doctype html>')
+    expect(html).toContain('DiffLens 差异报告')
+    expect(html).toContain('a.txt')
+    expect(html).toContain('b.txt')
+  })
+
+  it('包含差异统计与类型高亮语义', () => {
+    const html = buildHtmlReport(rows, ctx, summary)
+    expect(html).toContain('modified')
+    expect(html).toContain('<b>')
+  })
+})
+
+describe('buildTxtReport', () => {
+  it('输出带增删改标记的行式文本', () => {
+    const { rows, summary } = computeDiff('a', 'a\nb')
+    const txt = buildTxtReport(rows, ctx, summary)
+    expect(txt).toContain('DiffLens')
+    expect(txt).toContain('+')
+  })
+})
+
+describe('buildMarkdownReport', () => {
+  it('输出表格化报告', () => {
+    const { rows, summary } = computeDiff('a', 'b')
+    const md = buildMarkdownReport(rows, ctx, summary)
+    expect(md).toContain('# DiffLens 差异报告')
+    expect(md).toContain('| 类型 |')
+    expect(md).toContain('| 左行号 |')
+  })
+
+  it('管道符被转义以保持表格结构', () => {
+    const { rows, summary } = computeDiff('a|b', 'a')
+    const md = buildMarkdownReport(rows, ctx, summary)
+    expect(md).toContain('a\\|b')
+  })
+})
+
+describe('buildReport / REPORT_EXT', () => {
+  it('按格式分发', () => {
+    const { rows, summary } = computeDiff('x', 'y')
+    expect(buildReport(rows, ctx, summary, 'html')).toContain('<!doctype html>')
+    expect(buildReport(rows, ctx, summary, 'txt')).toContain('DiffLens')
+    expect(buildReport(rows, ctx, summary, 'md')).toContain('# DiffLens 差异报告')
+  })
+
+  it('扩展名映射正确', () => {
+    expect(REPORT_EXT.html).toBe('html')
+    expect(REPORT_EXT.txt).toBe('txt')
+    expect(REPORT_EXT.md).toBe('md')
+  })
+})
\ No newline at end of file
diff --git a/src/renderer/src/test/setup.ts b/src/renderer/src/test/setup.ts
new file mode 100644
index 0000000..d48d6f2
--- /dev/null
+++ b/src/renderer/src/test/setup.ts
@@ -0,0 +1,8 @@
+import { afterEach } from 'vitest'
+import { cleanup } from '@testing-library/react'
+import '@testing-library/jest-dom/vitest'
+
+// 每个用例结束自动卸载组件，避免多次 render 叠加污染 DOM
+afterEach(() => {
+  cleanup()
+})
\ No newline at end of file
diff --git a/vitest.config.ts b/vitest.config.ts
new file mode 100644
index 0000000..dc33d5e
--- /dev/null
+++ b/vitest.config.ts
@@ -0,0 +1,19 @@
+import { resolve } from 'path'
+import { defineConfig } from 'vitest/config'
+import react from '@vitejs/plugin-react'
+
+export default defineConfig({
+  plugins: [react()],
+  resolve: {
+    alias: {
+      '@renderer': resolve('src/renderer/src')
+    }
+  },
+  test: {
+    environment: 'jsdom',
+    globals: false,
+    setupFiles: ['./src/renderer/src/test/setup.ts'],
+    include: ['src/renderer/src/**/*.{test,spec}.{ts,tsx}'],
+    exclude: ['node_modules', 'dist', 'out']
+  }
+})
\ No newline at end of file