diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 8872e21..335c98d 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -13,6 +13,8 @@ on:
           - windows
           - macos
           - linux
+  pull_request:
+    branches: [main]
   push:
     tags:
       - "v*"
@@ -21,7 +23,32 @@ permissions:
   contents: write
 
 jobs:
+  lint-test:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: actions/setup-node@v4
+        with:
+          node-version: 20
+          cache: npm
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Lint
+        # TODO: fix 4 existing lint errors then remove continue-on-error
+        continue-on-error: true
+        run: npm run lint
+
+      - name: Typecheck
+        run: npm run typecheck
+
+      - name: Unit tests
+        run: npm run test:unit
+
   build-windows:
+    needs: [lint-test]
     if: ${{ github.event_name == 'push' || inputs.platform == 'all' || inputs.platform == 'windows' }}
     runs-on: windows-latest
     steps:
@@ -50,6 +77,7 @@ jobs:
           retention-days: 3
 
   build-macos:
+    needs: [lint-test]
     if: ${{ github.event_name == 'push' || inputs.platform == 'all' || inputs.platform == 'macos' }}
     runs-on: macos-latest
     env:
@@ -132,6 +160,7 @@ jobs:
           retention-days: 3
 
   build-linux:
+    needs: [lint-test]
     if: ${{ github.event_name == 'push' || inputs.platform == 'all' || inputs.platform == 'linux' }}
     runs-on: ubuntu-latest
     strategy:
diff --git a/.husky/pre-commit b/.husky/pre-commit
new file mode 100644
index 0000000..b3a3a18
--- /dev/null
+++ b/.husky/pre-commit
@@ -0,0 +1,3 @@
+npx lint-staged
+npx tsc --noEmit
+npx tsx --test src/__tests__/unit/*.test.ts
diff --git a/CLAUDE.md b/CLAUDE.md
index 20598ef..8e0113c 100644
--- a/CLAUDE.md
+++ b/CLAUDE.md
@@ -38,3 +38,13 @@ CodePilot — Claude Code 的桌面 GUI 客户端，基于 Electron + Next.js。
 - `docs/research/` — 调研文档（技术方案、可行性分析）
 
 **检索前先读对应目录的 README.md；增删文件后更新索引。**
+
+## 自检命令
+
+**自检命令（pre-commit hook 会自动执行前三项）：**
+- `npm run test` — typecheck + 单元测试（~4s，无需 dev server）
+- `npm run test:smoke` — 冒烟测试（~15s，需要 dev server）
+- `npm run test:e2e` — 完整 E2E（~60s+，需要 dev server）
+
+修改代码后，commit 前至少确保 `npm run test` 通过。
+涉及 UI 改动时额外运行 `npm run test:smoke`。
diff --git a/package-lock.json b/package-lock.json
index 3879af4..4b85b23 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -65,7 +65,10 @@
         "esbuild": "^0.27.3",
         "eslint": "^9",
         "eslint-config-next": "16.1.6",
+        "husky": "^9.1.7",
+        "lint-staged": "^16.3.2",
         "tailwindcss": "^4",
+        "tsx": "^4.21.0",
         "tw-animate-css": "^1.4.0",
         "typescript": "^5",
         "wait-on": "^9.0.3"
@@ -7844,6 +7847,22 @@
       "integrity": "sha512-vcZjxvvVoxTeR5XBNJB38oTu/7eDCZlwdz32N1eNgpyPF7j/Z7Idf+CUwQOkKKpJ7RJyjxgLHCM7vdIK0iCNMQ==",
       "license": "MIT"
     },
+    "node_modules/ansi-escapes": {
+      "version": "7.3.0",
+      "resolved": "https://registry.npmjs.org/ansi-escapes/-/ansi-escapes-7.3.0.tgz",
+      "integrity": "sha512-BvU8nYgGQBxcmMuEeUEmNTvrMVjJNSH7RgW24vXexN4Ven6qCvy4TntnvlnwnMLTVlcRQQdbRY8NKnaIoeWDNg==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "environment": "^1.0.0"
+      },
+      "engines": {
+        "node": ">=18"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/sindresorhus"
+      }
+    },
     "node_modules/ansi-regex": {
       "version": "5.0.1",
       "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-5.0.1.tgz",
@@ -9312,6 +9331,13 @@
       "license": "MIT",
       "peer": true
     },
+    "node_modules/colorette": {
+      "version": "2.0.20",
+      "resolved": "https://registry.npmjs.org/colorette/-/colorette-2.0.20.tgz",
+      "integrity": "sha512-IfEDxwoWIjkeXL1eXcDiow4UbKjhLdq6/EuSVR9GMN7KVH3r9gQ83e73hsz1Nd1T3ijd5xv1wcWRYO+D6kCI2w==",
+      "dev": true,
+      "license": "MIT"
+    },
     "node_modules/combined-stream": {
       "version": "1.0.8",
       "resolved": "https://registry.npmjs.org/combined-stream/-/combined-stream-1.0.8.tgz",
@@ -10821,6 +10847,19 @@
         "node": ">=6"
       }
     },
+    "node_modules/environment": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/environment/-/environment-1.1.0.tgz",
+      "integrity": "sha512-xUtoPkMggbz0MPyPiIWr1Kp4aeWJjDZ6SMvURhimjdZgsRuDplF5/s9hcgGhyXMhs+6vpnuoiZ2kFiu3FMnS8Q==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=18"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/sindresorhus"
+      }
+    },
     "node_modules/err-code": {
       "version": "2.0.3",
       "resolved": "https://registry.npmjs.org/err-code/-/err-code-2.0.3.tgz",
@@ -12361,9 +12400,9 @@
       }
     },
     "node_modules/get-east-asian-width": {
-      "version": "1.4.0",
-      "resolved": "https://registry.npmjs.org/get-east-asian-width/-/get-east-asian-width-1.4.0.tgz",
-      "integrity": "sha512-QZjmEOC+IT1uk6Rx0sX22V6uHWVwbdbxf1faPqJ1QhLdGgsRGCZoyaQBm/piRdJy/D2um6hM1UP7ZEeQ4EkP+Q==",
+      "version": "1.5.0",
+      "resolved": "https://registry.npmjs.org/get-east-asian-width/-/get-east-asian-width-1.5.0.tgz",
+      "integrity": "sha512-CQ+bEO+Tva/qlmw24dCejulK5pMzVnUOFOijVogd3KQs07HnRIgp8TGipvCCRT06xeYEbpbgwaCxglFyiuIcmA==",
       "license": "MIT",
       "engines": {
         "node": ">=18"
@@ -13177,6 +13216,22 @@
         "node": ">= 14"
       }
     },
+    "node_modules/husky": {
+      "version": "9.1.7",
+      "resolved": "https://registry.npmjs.org/husky/-/husky-9.1.7.tgz",
+      "integrity": "sha512-5gs5ytaNjBrh5Ow3zrvdUUY+0VxIuWVL4i9irt6friV+BqdCfmV11CQTWMiBYWHbXhco+J1kHfTOUkePhCDvMA==",
+      "dev": true,
+      "license": "MIT",
+      "bin": {
+        "husky": "bin.js"
+      },
+      "engines": {
+        "node": ">=18"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/typicode"
+      }
+    },
     "node_modules/iconv-corefoundation": {
       "version": "1.1.7",
       "resolved": "https://registry.npmjs.org/iconv-corefoundation/-/iconv-corefoundation-1.1.7.tgz",
@@ -14554,6 +14609,226 @@
         "uc.micro": "^1.0.1"
       }
     },
+    "node_modules/lint-staged": {
+      "version": "16.3.2",
+      "resolved": "https://registry.npmjs.org/lint-staged/-/lint-staged-16.3.2.tgz",
+      "integrity": "sha512-xKqhC2AeXLwiAHXguxBjuChoTTWFC6Pees0SHPwOpwlvI3BH7ZADFPddAdN3pgo3aiKgPUx/bxE78JfUnxQnlg==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "commander": "^14.0.3",
+        "listr2": "^9.0.5",
+        "micromatch": "^4.0.8",
+        "string-argv": "^0.3.2",
+        "tinyexec": "^1.0.2",
+        "yaml": "^2.8.2"
+      },
+      "bin": {
+        "lint-staged": "bin/lint-staged.js"
+      },
+      "engines": {
+        "node": ">=20.17"
+      },
+      "funding": {
+        "url": "https://opencollective.com/lint-staged"
+      }
+    },
+    "node_modules/lint-staged/node_modules/commander": {
+      "version": "14.0.3",
+      "resolved": "https://registry.npmjs.org/commander/-/commander-14.0.3.tgz",
+      "integrity": "sha512-H+y0Jo/T1RZ9qPP4Eh1pkcQcLRglraJaSLoyOtHxu6AapkjWVCy2Sit1QQ4x3Dng8qDlSsZEet7g5Pq06MvTgw==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=20"
+      }
+    },
+    "node_modules/lint-staged/node_modules/yaml": {
+      "version": "2.8.2",
+      "resolved": "https://registry.npmjs.org/yaml/-/yaml-2.8.2.tgz",
+      "integrity": "sha512-mplynKqc1C2hTVYxd0PU2xQAc22TI1vShAYGksCCfxbn/dFwnHTNi1bvYsBTkhdUNtGIf5xNOg938rrSSYvS9A==",
+      "dev": true,
+      "license": "ISC",
+      "bin": {
+        "yaml": "bin.mjs"
+      },
+      "engines": {
+        "node": ">= 14.6"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/eemeli"
+      }
+    },
+    "node_modules/listr2": {
+      "version": "9.0.5",
+      "resolved": "https://registry.npmjs.org/listr2/-/listr2-9.0.5.tgz",
+      "integrity": "sha512-ME4Fb83LgEgwNw96RKNvKV4VTLuXfoKudAmm2lP8Kk87KaMK0/Xrx/aAkMWmT8mDb+3MlFDspfbCs7adjRxA2g==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "cli-truncate": "^5.0.0",
+        "colorette": "^2.0.20",
+        "eventemitter3": "^5.0.1",
+        "log-update": "^6.1.0",
+        "rfdc": "^1.4.1",
+        "wrap-ansi": "^9.0.0"
+      },
+      "engines": {
+        "node": ">=20.0.0"
+      }
+    },
+    "node_modules/listr2/node_modules/ansi-regex": {
+      "version": "6.2.2",
+      "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-6.2.2.tgz",
+      "integrity": "sha512-Bq3SmSpyFHaWjPk8If9yc6svM8c56dB5BAtW4Qbw5jHTwwXXcTLoRMkpDJp6VL0XzlWaCHTXrkFURMYmD0sLqg==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=12"
+      },
+      "funding": {
+        "url": "https://github.com/chalk/ansi-regex?sponsor=1"
+      }
+    },
+    "node_modules/listr2/node_modules/ansi-styles": {
+      "version": "6.2.3",
+      "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-6.2.3.tgz",
+      "integrity": "sha512-4Dj6M28JB+oAH8kFkTLUo+a2jwOFkuqb3yucU0CANcRRUbxS0cP0nZYCGjcc3BNXwRIsUVmDGgzawme7zvJHvg==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=12"
+      },
+      "funding": {
+        "url": "https://github.com/chalk/ansi-styles?sponsor=1"
+      }
+    },
+    "node_modules/listr2/node_modules/cli-truncate": {
+      "version": "5.2.0",
+      "resolved": "https://registry.npmjs.org/cli-truncate/-/cli-truncate-5.2.0.tgz",
+      "integrity": "sha512-xRwvIOMGrfOAnM1JYtqQImuaNtDEv9v6oIYAs4LIHwTiKee8uwvIi363igssOC0O5U04i4AlENs79LQLu9tEMw==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "slice-ansi": "^8.0.0",
+        "string-width": "^8.2.0"
+      },
+      "engines": {
+        "node": ">=20"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/sindresorhus"
+      }
+    },
+    "node_modules/listr2/node_modules/emoji-regex": {
+      "version": "10.6.0",
+      "resolved": "https://registry.npmjs.org/emoji-regex/-/emoji-regex-10.6.0.tgz",
+      "integrity": "sha512-toUI84YS5YmxW219erniWD0CIVOo46xGKColeNQRgOzDorgBi1v4D71/OFzgD9GO2UGKIv1C3Sp8DAn0+j5w7A==",
+      "dev": true,
+      "license": "MIT"
+    },
+    "node_modules/listr2/node_modules/is-fullwidth-code-point": {
+      "version": "5.1.0",
+      "resolved": "https://registry.npmjs.org/is-fullwidth-code-point/-/is-fullwidth-code-point-5.1.0.tgz",
+      "integrity": "sha512-5XHYaSyiqADb4RnZ1Bdad6cPp8Toise4TzEjcOYDHZkTCbKgiUl7WTUCpNWHuxmDt91wnsZBc9xinNzopv3JMQ==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "get-east-asian-width": "^1.3.1"
+      },
+      "engines": {
+        "node": ">=18"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/sindresorhus"
+      }
+    },
+    "node_modules/listr2/node_modules/slice-ansi": {
+      "version": "8.0.0",
+      "resolved": "https://registry.npmjs.org/slice-ansi/-/slice-ansi-8.0.0.tgz",
+      "integrity": "sha512-stxByr12oeeOyY2BlviTNQlYV5xOj47GirPr4yA1hE9JCtxfQN0+tVbkxwCtYDQWhEKWFHsEK48ORg5jrouCAg==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "ansi-styles": "^6.2.3",
+        "is-fullwidth-code-point": "^5.1.0"
+      },
+      "engines": {
+        "node": ">=20"
+      },
+      "funding": {
+        "url": "https://github.com/chalk/slice-ansi?sponsor=1"
+      }
+    },
+    "node_modules/listr2/node_modules/string-width": {
+      "version": "8.2.0",
+      "resolved": "https://registry.npmjs.org/string-width/-/string-width-8.2.0.tgz",
+      "integrity": "sha512-6hJPQ8N0V0P3SNmP6h2J99RLuzrWz2gvT7VnK5tKvrNqJoyS9W4/Fb8mo31UiPvy00z7DQXkP2hnKBVav76thw==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "get-east-asian-width": "^1.5.0",
+        "strip-ansi": "^7.1.2"
+      },
+      "engines": {
+        "node": ">=20"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/sindresorhus"
+      }
+    },
+    "node_modules/listr2/node_modules/strip-ansi": {
+      "version": "7.2.0",
+      "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-7.2.0.tgz",
+      "integrity": "sha512-yDPMNjp4WyfYBkHnjIRLfca1i6KMyGCtsVgoKe/z1+6vukgaENdgGBZt+ZmKPc4gavvEZ5OgHfHdrazhgNyG7w==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "ansi-regex": "^6.2.2"
+      },
+      "engines": {
+        "node": ">=12"
+      },
+      "funding": {
+        "url": "https://github.com/chalk/strip-ansi?sponsor=1"
+      }
+    },
+    "node_modules/listr2/node_modules/wrap-ansi": {
+      "version": "9.0.2",
+      "resolved": "https://registry.npmjs.org/wrap-ansi/-/wrap-ansi-9.0.2.tgz",
+      "integrity": "sha512-42AtmgqjV+X1VpdOfyTGOYRi0/zsoLqtXQckTmqTeybT+BDIbM/Guxo7x3pE2vtpr1ok6xRqM9OpBe+Jyoqyww==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "ansi-styles": "^6.2.1",
+        "string-width": "^7.0.0",
+        "strip-ansi": "^7.1.0"
+      },
+      "engines": {
+        "node": ">=18"
+      },
+      "funding": {
+        "url": "https://github.com/chalk/wrap-ansi?sponsor=1"
+      }
+    },
+    "node_modules/listr2/node_modules/wrap-ansi/node_modules/string-width": {
+      "version": "7.2.0",
+      "resolved": "https://registry.npmjs.org/string-width/-/string-width-7.2.0.tgz",
+      "integrity": "sha512-tsaTIkKW9b4N+AEj+SVA+WhJzV7/zMhcSu78mLKWSk7cXMOSHsBKFWUs0fWwq8QyK3MgJBQRX6Gbi4kYbdvGkQ==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "emoji-regex": "^10.3.0",
+        "get-east-asian-width": "^1.0.0",
+        "strip-ansi": "^7.1.0"
+      },
+      "engines": {
+        "node": ">=18"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/sindresorhus"
+      }
+    },
     "node_modules/lit": {
       "version": "3.3.2",
       "resolved": "https://registry.npmjs.org/lit/-/lit-3.3.2.tgz",
@@ -14664,6 +14939,206 @@
         "url": "https://github.com/sponsors/sindresorhus"
       }
     },
+    "node_modules/log-update": {
+      "version": "6.1.0",
+      "resolved": "https://registry.npmjs.org/log-update/-/log-update-6.1.0.tgz",
+      "integrity": "sha512-9ie8ItPR6tjY5uYJh8K/Zrv/RMZ5VOlOWvtZdEHYSTFKZfIBPQa9tOAEeAWhd+AnIneLJ22w5fjOYtoutpWq5w==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "ansi-escapes": "^7.0.0",
+        "cli-cursor": "^5.0.0",
+        "slice-ansi": "^7.1.0",
+        "strip-ansi": "^7.1.0",
+        "wrap-ansi": "^9.0.0"
+      },
+      "engines": {
+        "node": ">=18"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/sindresorhus"
+      }
+    },
+    "node_modules/log-update/node_modules/ansi-regex": {
+      "version": "6.2.2",
+      "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-6.2.2.tgz",
+      "integrity": "sha512-Bq3SmSpyFHaWjPk8If9yc6svM8c56dB5BAtW4Qbw5jHTwwXXcTLoRMkpDJp6VL0XzlWaCHTXrkFURMYmD0sLqg==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=12"
+      },
+      "funding": {
+        "url": "https://github.com/chalk/ansi-regex?sponsor=1"
+      }
+    },
+    "node_modules/log-update/node_modules/ansi-styles": {
+      "version": "6.2.3",
+      "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-6.2.3.tgz",
+      "integrity": "sha512-4Dj6M28JB+oAH8kFkTLUo+a2jwOFkuqb3yucU0CANcRRUbxS0cP0nZYCGjcc3BNXwRIsUVmDGgzawme7zvJHvg==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=12"
+      },
+      "funding": {
+        "url": "https://github.com/chalk/ansi-styles?sponsor=1"
+      }
+    },
+    "node_modules/log-update/node_modules/cli-cursor": {
+      "version": "5.0.0",
+      "resolved": "https://registry.npmjs.org/cli-cursor/-/cli-cursor-5.0.0.tgz",
+      "integrity": "sha512-aCj4O5wKyszjMmDT4tZj93kxyydN/K5zPWSCe6/0AV/AA1pqe5ZBIw0a2ZfPQV7lL5/yb5HsUreJ6UFAF1tEQw==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "restore-cursor": "^5.0.0"
+      },
+      "engines": {
+        "node": ">=18"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/sindresorhus"
+      }
+    },
+    "node_modules/log-update/node_modules/emoji-regex": {
+      "version": "10.6.0",
+      "resolved": "https://registry.npmjs.org/emoji-regex/-/emoji-regex-10.6.0.tgz",
+      "integrity": "sha512-toUI84YS5YmxW219erniWD0CIVOo46xGKColeNQRgOzDorgBi1v4D71/OFzgD9GO2UGKIv1C3Sp8DAn0+j5w7A==",
+      "dev": true,
+      "license": "MIT"
+    },
+    "node_modules/log-update/node_modules/is-fullwidth-code-point": {
+      "version": "5.1.0",
+      "resolved": "https://registry.npmjs.org/is-fullwidth-code-point/-/is-fullwidth-code-point-5.1.0.tgz",
+      "integrity": "sha512-5XHYaSyiqADb4RnZ1Bdad6cPp8Toise4TzEjcOYDHZkTCbKgiUl7WTUCpNWHuxmDt91wnsZBc9xinNzopv3JMQ==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "get-east-asian-width": "^1.3.1"
+      },
+      "engines": {
+        "node": ">=18"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/sindresorhus"
+      }
+    },
+    "node_modules/log-update/node_modules/onetime": {
+      "version": "7.0.0",
+      "resolved": "https://registry.npmjs.org/onetime/-/onetime-7.0.0.tgz",
+      "integrity": "sha512-VXJjc87FScF88uafS3JllDgvAm+c/Slfz06lorj2uAY34rlUu0Nt+v8wreiImcrgAjjIHp1rXpTDlLOGw29WwQ==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "mimic-function": "^5.0.0"
+      },
+      "engines": {
+        "node": ">=18"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/sindresorhus"
+      }
+    },
+    "node_modules/log-update/node_modules/restore-cursor": {
+      "version": "5.1.0",
+      "resolved": "https://registry.npmjs.org/restore-cursor/-/restore-cursor-5.1.0.tgz",
+      "integrity": "sha512-oMA2dcrw6u0YfxJQXm342bFKX/E4sG9rbTzO9ptUcR/e8A33cHuvStiYOwH7fszkZlZ1z/ta9AAoPk2F4qIOHA==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "onetime": "^7.0.0",
+        "signal-exit": "^4.1.0"
+      },
+      "engines": {
+        "node": ">=18"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/sindresorhus"
+      }
+    },
+    "node_modules/log-update/node_modules/signal-exit": {
+      "version": "4.1.0",
+      "resolved": "https://registry.npmjs.org/signal-exit/-/signal-exit-4.1.0.tgz",
+      "integrity": "sha512-bzyZ1e88w9O1iNJbKnOlvYTrWPDl46O1bG0D3XInv+9tkPrxrN8jUUTiFlDkkmKWgn1M6CfIA13SuGqOa9Korw==",
+      "dev": true,
+      "license": "ISC",
+      "engines": {
+        "node": ">=14"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/isaacs"
+      }
+    },
+    "node_modules/log-update/node_modules/slice-ansi": {
+      "version": "7.1.2",
+      "resolved": "https://registry.npmjs.org/slice-ansi/-/slice-ansi-7.1.2.tgz",
+      "integrity": "sha512-iOBWFgUX7caIZiuutICxVgX1SdxwAVFFKwt1EvMYYec/NWO5meOJ6K5uQxhrYBdQJne4KxiqZc+KptFOWFSI9w==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "ansi-styles": "^6.2.1",
+        "is-fullwidth-code-point": "^5.0.0"
+      },
+      "engines": {
+        "node": ">=18"
+      },
+      "funding": {
+        "url": "https://github.com/chalk/slice-ansi?sponsor=1"
+      }
+    },
+    "node_modules/log-update/node_modules/string-width": {
+      "version": "7.2.0",
+      "resolved": "https://registry.npmjs.org/string-width/-/string-width-7.2.0.tgz",
+      "integrity": "sha512-tsaTIkKW9b4N+AEj+SVA+WhJzV7/zMhcSu78mLKWSk7cXMOSHsBKFWUs0fWwq8QyK3MgJBQRX6Gbi4kYbdvGkQ==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "emoji-regex": "^10.3.0",
+        "get-east-asian-width": "^1.0.0",
+        "strip-ansi": "^7.1.0"
+      },
+      "engines": {
+        "node": ">=18"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/sindresorhus"
+      }
+    },
+    "node_modules/log-update/node_modules/strip-ansi": {
+      "version": "7.2.0",
+      "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-7.2.0.tgz",
+      "integrity": "sha512-yDPMNjp4WyfYBkHnjIRLfca1i6KMyGCtsVgoKe/z1+6vukgaENdgGBZt+ZmKPc4gavvEZ5OgHfHdrazhgNyG7w==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "ansi-regex": "^6.2.2"
+      },
+      "engines": {
+        "node": ">=12"
+      },
+      "funding": {
+        "url": "https://github.com/chalk/strip-ansi?sponsor=1"
+      }
+    },
+    "node_modules/log-update/node_modules/wrap-ansi": {
+      "version": "9.0.2",
+      "resolved": "https://registry.npmjs.org/wrap-ansi/-/wrap-ansi-9.0.2.tgz",
+      "integrity": "sha512-42AtmgqjV+X1VpdOfyTGOYRi0/zsoLqtXQckTmqTeybT+BDIbM/Guxo7x3pE2vtpr1ok6xRqM9OpBe+Jyoqyww==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "ansi-styles": "^6.2.1",
+        "string-width": "^7.0.0",
+        "strip-ansi": "^7.1.0"
+      },
+      "engines": {
+        "node": ">=18"
+      },
+      "funding": {
+        "url": "https://github.com/chalk/wrap-ansi?sponsor=1"
+      }
+    },
     "node_modules/long": {
       "version": "5.3.2",
       "resolved": "https://registry.npmjs.org/long/-/long-5.3.2.tgz",
@@ -16156,6 +16631,19 @@
         "node": ">=6"
       }
     },
+    "node_modules/mimic-function": {
+      "version": "5.0.1",
+      "resolved": "https://registry.npmjs.org/mimic-function/-/mimic-function-5.0.1.tgz",
+      "integrity": "sha512-VP79XUPxV2CigYP3jWwAUFSku2aKqBH7uTAapFWCBqutsbmDo96KY5o8uh6U+/YSIn5OxJnXp73beVkpqMIGhA==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=18"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/sindresorhus"
+      }
+    },
     "node_modules/mimic-response": {
       "version": "3.1.0",
       "resolved": "https://registry.npmjs.org/mimic-response/-/mimic-response-3.1.0.tgz",
@@ -19059,6 +19547,13 @@
         "node": ">=0.10.0"
       }
     },
+    "node_modules/rfdc": {
+      "version": "1.4.1",
+      "resolved": "https://registry.npmjs.org/rfdc/-/rfdc-1.4.1.tgz",
+      "integrity": "sha512-q1b3N5QkRUWUl7iyylaaj3kOpIT0N2i9MqIEQXP73GVsN9cw3fdx8X63cEmWhJGi2PPCF23Ijp7ktmd39rawIA==",
+      "dev": true,
+      "license": "MIT"
+    },
     "node_modules/rimraf": {
       "version": "2.6.3",
       "resolved": "https://registry.npmjs.org/rimraf/-/rimraf-2.6.3.tgz",
@@ -19910,6 +20405,16 @@
         "safe-buffer": "~5.2.0"
       }
     },
+    "node_modules/string-argv": {
+      "version": "0.3.2",
+      "resolved": "https://registry.npmjs.org/string-argv/-/string-argv-0.3.2.tgz",
+      "integrity": "sha512-aqD2Q0144Z+/RqG52NeHEkZauTAUWJO8c6yTftGJKO3Tja5tUgIfmIl6kExvhtxSDP7fXB6DvzkfMpCd/F3G+Q==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=0.6.19"
+      }
+    },
     "node_modules/string-convert": {
       "version": "0.2.1",
       "resolved": "https://registry.npmjs.org/string-convert/-/string-convert-0.2.1.tgz",
@@ -20649,6 +21154,41 @@
       "integrity": "sha512-oJFu94HQb+KVduSUQL7wnpmqnfmLsOA/nAh6b6EH0wCEoK0/mPeXU6c3wKDV83MkOuHPRHtSXKKU99IBazS/2w==",
       "license": "0BSD"
     },
+    "node_modules/tsx": {
+      "version": "4.21.0",
+      "resolved": "https://registry.npmjs.org/tsx/-/tsx-4.21.0.tgz",
+      "integrity": "sha512-5C1sg4USs1lfG0GFb2RLXsdpXqBSEhAaA/0kPL01wxzpMqLILNxIxIOKiILz+cdg/pLnOUxFYOR5yhHU666wbw==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "esbuild": "~0.27.0",
+        "get-tsconfig": "^4.7.5"
+      },
+      "bin": {
+        "tsx": "dist/cli.mjs"
+      },
+      "engines": {
+        "node": ">=18.0.0"
+      },
+      "optionalDependencies": {
+        "fsevents": "~2.3.3"
+      }
+    },
+    "node_modules/tsx/node_modules/fsevents": {
+      "version": "2.3.3",
+      "resolved": "https://registry.npmjs.org/fsevents/-/fsevents-2.3.3.tgz",
+      "integrity": "sha512-5xoDfX+fL7faATnagmWPpbFtwh/R77WmMMqqHGS65C3vvB0YHrgF+B1YmZ3441tMj5n63k0212XNoJwzlhffQw==",
+      "dev": true,
+      "hasInstallScript": true,
+      "license": "MIT",
+      "optional": true,
+      "os": [
+        "darwin"
+      ],
+      "engines": {
+        "node": "^8.16.0 || ^10.6.0 || >=11.0.0"
+      }
+    },
     "node_modules/tunnel-agent": {
       "version": "0.6.0",
       "resolved": "https://registry.npmjs.org/tunnel-agent/-/tunnel-agent-0.6.0.tgz",
diff --git a/package.json b/package.json
index 0ad0a08..0b72b00 100644
--- a/package.json
+++ b/package.json
@@ -13,6 +13,12 @@
     "build": "next build",
     "start": "next start",
     "lint": "eslint",
+    "typecheck": "tsc --noEmit",
+    "test:unit": "tsx --test src/__tests__/unit/*.test.ts",
+    "test:smoke": "npx playwright test --grep @smoke",
+    "test:e2e": "npx playwright test",
+    "test": "npm run typecheck && npm run test:unit",
+    "prepare": "husky",
     "electron:dev": "concurrently -k \"next dev\" \"wait-on http://localhost:3000 && electron .\"",
     "electron:build": "next build && node scripts/build-electron.mjs",
     "electron:pack": "npm run electron:build && electron-builder --config electron-builder.yml",
@@ -20,6 +26,11 @@
     "electron:pack:win": "npm run electron:build && electron-builder --win --config electron-builder.yml",
     "electron:pack:linux": "npm run electron:build && electron-builder --linux --config electron-builder.yml"
   },
+  "lint-staged": {
+    "*.{ts,tsx}": [
+      "eslint --fix"
+    ]
+  },
   "dependencies": {
     "@ai-sdk/anthropic": "^3.0.47",
     "@ai-sdk/google": "^3.0.31",
@@ -78,7 +89,10 @@
     "esbuild": "^0.27.3",
     "eslint": "^9",
     "eslint-config-next": "16.1.6",
+    "husky": "^9.1.7",
+    "lint-staged": "^16.3.2",
     "tailwindcss": "^4",
+    "tsx": "^4.21.0",
     "tw-animate-css": "^1.4.0",
     "typescript": "^5",
     "wait-on": "^9.0.3"
diff --git a/src/__tests__/e2e/smoke.spec.ts b/src/__tests__/e2e/smoke.spec.ts
new file mode 100644
index 0000000..b305bd3
--- /dev/null
+++ b/src/__tests__/e2e/smoke.spec.ts
@@ -0,0 +1,91 @@
+import { test, expect } from '@playwright/test';
+import {
+  goToChat,
+  goToPlugins,
+  goToMCP,
+  goToSettings,
+  collectConsoleErrors,
+  filterCriticalErrors,
+  waitForPageReady,
+} from '../helpers';
+
+test.describe('Smoke @smoke', () => {
+  test('Home redirects to /chat @smoke', async ({ page }) => {
+    const errors = collectConsoleErrors(page);
+    const response = await page.goto('/');
+    await waitForPageReady(page);
+
+    expect(response?.status()).toBeLessThan(400);
+    expect(page.url()).toContain('/chat');
+
+    const title = await page.title();
+    expect(title).not.toContain('404');
+    expect(title).not.toContain('500');
+
+    const hasErrorOverlay = await page.locator('#__next-build-error, [data-nextjs-dialog]').count();
+    expect(hasErrorOverlay).toBe(0);
+
+    const critical = filterCriticalErrors(errors);
+    expect(critical).toHaveLength(0);
+  });
+
+  test('Chat page loads @smoke', async ({ page }) => {
+    const errors = collectConsoleErrors(page);
+    await goToChat(page);
+
+    const title = await page.title();
+    expect(title).not.toContain('404');
+    expect(title).not.toContain('500');
+
+    const hasErrorOverlay = await page.locator('#__next-build-error, [data-nextjs-dialog]').count();
+    expect(hasErrorOverlay).toBe(0);
+
+    const critical = filterCriticalErrors(errors);
+    expect(critical).toHaveLength(0);
+  });
+
+  test('Plugins page loads @smoke', async ({ page }) => {
+    const errors = collectConsoleErrors(page);
+    await goToPlugins(page);
+
+    const title = await page.title();
+    expect(title).not.toContain('404');
+    expect(title).not.toContain('500');
+
+    const hasErrorOverlay = await page.locator('#__next-build-error, [data-nextjs-dialog]').count();
+    expect(hasErrorOverlay).toBe(0);
+
+    const critical = filterCriticalErrors(errors);
+    expect(critical).toHaveLength(0);
+  });
+
+  test('MCP page loads @smoke', async ({ page }) => {
+    const errors = collectConsoleErrors(page);
+    await goToMCP(page);
+
+    const title = await page.title();
+    expect(title).not.toContain('404');
+    expect(title).not.toContain('500');
+
+    const hasErrorOverlay = await page.locator('#__next-build-error, [data-nextjs-dialog]').count();
+    expect(hasErrorOverlay).toBe(0);
+
+    const critical = filterCriticalErrors(errors);
+    expect(critical).toHaveLength(0);
+  });
+
+  test('Settings page loads @smoke', async ({ page }) => {
+    const errors = collectConsoleErrors(page);
+    await goToSettings(page);
+
+    const title = await page.title();
+    expect(title).not.toContain('404');
+    expect(title).not.toContain('500');
+
+    const hasErrorOverlay = await page.locator('#__next-build-error, [data-nextjs-dialog]').count();
+    expect(hasErrorOverlay).toBe(0);
+
+    const critical = filterCriticalErrors(errors);
+    expect(critical).toHaveLength(0);
+  });
+});
diff --git a/src/__tests__/smoke-test.ts b/src/__tests__/smoke-test.ts
index 5329c3c..cfa4257 100644
--- a/src/__tests__/smoke-test.ts
+++ b/src/__tests__/smoke-test.ts
@@ -1,5 +1,8 @@
 /**
- * Smoke test script -- run with: npx tsx src/__tests__/smoke-test.ts
+ * @deprecated Use the Playwright version instead: npx playwright test --grep @smoke
+ * See: src/__tests__/e2e/smoke.spec.ts
+ *
+ * Legacy smoke test script -- run with: npx tsx src/__tests__/smoke-test.ts
  * Tests basic page rendering for all routes.
  */
 import { chromium } from 'playwright';