feat: add biome

fix #11

Author: HerringtonDarkholme

biome.json

@@ -0,0 +1,30 @@
+{
+	"$schema": "https://biomejs.dev/schemas/1.9.4/schema.json",
+	"vcs": {
+		"enabled": true,
+		"clientKind": "git",
+		"useIgnoreFile": true
+	},
+	"files": {
+		"ignoreUnknown": false,
+		"ignore": []
+	},
+	"formatter": {
+		"enabled": true,
+		"indentStyle": "tab"
+	},
+	"organizeImports": {
+		"enabled": true
+	},
+	"linter": {
+		"enabled": true,
+		"rules": {
+			"recommended": true
+		}
+	},
+	"javascript": {
+		"formatter": {
+			"quoteStyle": "double"
+		}
+	}
+}

package.json

@@ -8,9 +8,13 @@
   "version": "0.0.1",
   "description": "Monorepo for `@ast-grep/lang-*` packages",
   "scripts": {
-    "postinstall": "pnpm -r compile-ts"
+    "postinstall": "pnpm -r compile-ts",
+    "lint": "biome lint --fix"
   },
   "keywords": [],
   "author": "Herrington Darkholme",
-  "license": "MIT"
+  "license": "MIT",
+  "devDependencies": {
+    "@biomejs/biome": "1.9.4"
+  }
 }