chore: add eslint and prettier setup for center and guild

Fabric.Backend.Guild/eslint.config.mjs

@@ -0,0 +1,28 @@
+import tsParser from '@typescript-eslint/parser';
+import tsPlugin from '@typescript-eslint/eslint-plugin';
+
+export default [
+  {
+    ignores: ['dist/**', 'node_modules/**'],
+  },
+  {
+    files: ['src/**/*.ts'],
+    languageOptions: {
+      parser: tsParser,
+      parserOptions: {
+        ecmaVersion: 'latest',
+        sourceType: 'module',
+      },
+      globals: {
+        console: 'readonly',
+        process: 'readonly',
+      },
+    },
+    plugins: {
+      '@typescript-eslint': tsPlugin,
+    },
+    rules: {
+      ...tsPlugin.configs.recommended.rules,
+    },
+  },
+];