build: switch to biomejs

Author: jpoehnelt

.eslintignore

@@ -0,0 +1,20 @@
+{
+  "$schema": "https://biomejs.dev/schemas/1.9.4/schema.json",
+  "vcs": {
+    "enabled": true,
+    "clientKind": "git",
+    "useIgnoreFile": true
+  },
+  "formatter": {
+    "enabled": true
+  },
+  "linter": {
+    "enabled": true,
+    "rules": {
+      "recommended": true
+    }
+  },
+  "files": {
+    "ignore": ["moment.gs", "**/dist", "**/target", "**/pkg", "**/node_modules"]
+  }
+}

.eslintrc.js

@@ -16,20 +16,15 @@
   "devDependencies": {
     "@types/google-apps-script": "^2.0.7",
     "@types/node": "^24.10.1",
-    "eslint": "8.18.0",
-    "eslint-config-google": "0.14.0",
-    "eslint-plugin-googleappsscript": "1.0.4",
+    "@biomejs/biome": "1.9.4",
     "tsx": "^4.20.6",
     "typescript": "^5.9.3"
   },
   "scripts": {
-    "lint": "./node_modules/.bin/eslint **/*.gs",
-    "fix": "./node_modules/.bin/eslint **/*.gs --fix --quiet",
+    "lint": "biome check .",
+    "format": "biome check --write .",
     "check": "tsx .github/scripts/check-gs.ts"
   },
-  "eslintIgnore": [
-    "**/node_modules/**"
-  ],
   "type": "module",
   "packageManager": "pnpm@10.15.1",
   "engines": {