Replace ESLint/Prettier with Biome

Author: AlecRust

.github/workflows/ci.yml

@@ -12,14 +12,10 @@ jobs:
     steps:
       - name: Checkout code
         uses: actions/checkout@v4
-      - name: Setup Node.js
-        uses: actions/setup-node@v4
-        with:
-          node-version: "lts/*"
-      - name: Install dependencies
-        run: npm ci
-      - name: Run lint
-        run: npm run lint
+      - name: Setup Biome
+        uses: biomejs/setup-biome@v2
+      - name: Run Biome check
+        run: biome ci .
 
   test:
     needs: lint

.prettierrc

@@ -0,0 +1,31 @@
+{
+  "$schema": "https://biomejs.dev/schemas/1.9.4/schema.json",
+  "vcs": {
+    "enabled": false,
+    "clientKind": "git",
+    "useIgnoreFile": false
+  },
+  "files": {
+    "ignoreUnknown": false,
+    "ignore": []
+  },
+  "formatter": {
+    "enabled": true,
+    "indentStyle": "space"
+  },
+  "organizeImports": {
+    "enabled": true
+  },
+  "linter": {
+    "enabled": true,
+    "rules": {
+      "recommended": true
+    }
+  },
+  "javascript": {
+    "formatter": {
+      "quoteStyle": "single",
+      "semicolons": "asNeeded"
+    }
+  }
+}