chore: apply prettier on the entire project

shared/eslint.config.mjs

@@ -0,0 +1,28 @@
+import js from "@eslint/js";
+import tseslint from "typescript-eslint";
+import eslintConfigPrettier from "eslint-config-prettier";
+import eslintPluginPrettier from "eslint-plugin-prettier";
+import gitignore from "eslint-config-flat-gitignore";
+
+export default tseslint.config(
+  gitignore({ strict: false }),
+  js.configs.recommended,
+  ...tseslint.configs.recommended,
+  eslintConfigPrettier,
+  {
+    plugins: {
+      prettier: eslintPluginPrettier,
+    },
+    rules: {
+      "prettier/prettier": "error",
+      "@typescript-eslint/no-unused-vars": [
+        "error",
+        { argsIgnorePattern: "^_", varsIgnorePattern: "^_" },
+      ],
+      "@typescript-eslint/no-explicit-any": "error",
+    },
+  },
+  {
+    ignores: ["node_modules"],
+  },
+);