chore: add biome formatter configuration

Author: devin-ai-integration[bot]

biome.json

@@ -0,0 +1,33 @@
+{
+  "$schema": "https://biomejs.dev/schemas/2.2.5/schema.json",
+  "vcs": { "enabled": true, "clientKind": "git", "useIgnoreFile": true },
+  "files": { "ignoreUnknown": false },
+  "formatter": {
+    "enabled": true,
+    "formatWithErrors": false,
+    "indentStyle": "space",
+    "indentWidth": 2,
+    "lineEnding": "lf",
+    "lineWidth": 120,
+    "attributePosition": "auto",
+    "bracketSameLine": false,
+    "bracketSpacing": true,
+    "expand": "auto",
+    "useEditorconfig": true,
+    "includes": ["**", "!./coverage", "!./dist", "!**/package.json"]
+  },
+  "javascript": {
+    "formatter": {
+      "jsxQuoteStyle": "single",
+      "quoteProperties": "preserve",
+      "trailingCommas": "es5",
+      "semicolons": "asNeeded",
+      "arrowParentheses": "asNeeded",
+      "bracketSameLine": false,
+      "quoteStyle": "single",
+      "attributePosition": "auto",
+      "bracketSpacing": true
+    }
+  },
+  "html": { "formatter": { "selfCloseVoidElements": "always" } }
+}