feat: add shared ESLint config package (@repo/eslint-config)

packages/eslint-config/base.js

@@ -0,0 +1,17 @@
+import js from "@eslint/js";
+import eslintConfigPrettier from "eslint-config-prettier";
+import tseslint from "typescript-eslint";
+import turboPlugin from "eslint-plugin-turbo";
+
+export default [
+  { ignores: ["dist/**", "node_modules/**"] },
+  js.configs.recommended,
+  ...tseslint.configs.recommended,
+  eslintConfigPrettier,
+  {
+    plugins: { turbo: turboPlugin },
+    rules: {
+      "turbo/no-undeclared-env-vars": "warn",
+    },
+  },
+];

packages/eslint-config/next.js

@@ -0,0 +1,6 @@
+import baseConfig from "./base.js";
+
+export default [
+  ...baseConfig,
+  { ignores: [".next/**", "out/**"] },
+];

packages/eslint-config/package.json

@@ -0,0 +1,20 @@
+{
+  "name": "@repo/eslint-config",
+  "private": true,
+  "version": "0.0.0",
+  "type": "module",
+  "exports": {
+    "./base": "./base.js",
+    "./next": "./next.js",
+    "./react-internal": "./react-internal.js"
+  },
+  "devDependencies": {
+    "@eslint/js": "^9.20.0",
+    "@typescript-eslint/eslint-plugin": "^8.25.0",
+    "@typescript-eslint/parser": "^8.25.0",
+    "eslint": "^9.20.0",
+    "eslint-config-prettier": "^10.1.0",
+    "eslint-plugin-turbo": "^2.4.0",
+    "typescript-eslint": "^8.25.0"
+  }
+}

packages/eslint-config/react-internal.js

@@ -0,0 +1,3 @@
+import baseConfig from "./base.js";
+
+export default [...baseConfig];