chore: add simple-git-hooks + lint-staged pre-commit hook

Runs Biome check --write on staged .ts/.tsx/.js/.mjs/.cjs files
and Biome format on .json/.jsonc files before every commit.

- simple-git-hooks wires up the .git/hooks/pre-commit
- lint-staged runs Biome only on changed files (fast)
- prepare script re-registers the hook after pnpm install

To bypass in emergencies: SKIP_SIMPLE_GIT_HOOKS=1 git commit

Author: SPCFXDA

package.json

@@ -19,11 +19,14 @@
     "devkit:build": "pnpm --filter conflux-devkit-ui build && pnpm --filter conflux-devkit build",
     "devkit:start": "node devtools/devkit/dist/cli.js",
     "devkit:dev": "pnpm --filter conflux-devkit dev:server",
-    "release": "node scripts/release.mjs"
+    "release": "node scripts/release.mjs",
+    "prepare": "simple-git-hooks"
   },
   "devDependencies": {
     "@biomejs/biome": "^2.0.0",
     "@vitest/coverage-v8": "^4.0.18",
+    "lint-staged": "^16.3.3",
+    "simple-git-hooks": "^2.13.1",
     "turbo": "^2.5.0"
   },
   "pnpm": {
@@ -41,5 +44,16 @@
       "keccak",
       "utf-8-validate"
     ]
+  },
+  "simple-git-hooks": {
+    "pre-commit": "pnpm lint-staged"
+  },
+  "lint-staged": {
+    "**/*.{ts,tsx,js,jsx,mjs,cjs}": [
+      "biome check --write --no-errors-on-unmatched --files-ignore-unknown=true"
+    ],
+    "**/*.{json,jsonc}": [
+      "biome format --write --no-errors-on-unmatched --files-ignore-unknown=true"
+    ]
   }
 }