fix: use js postinstall hook

Signed-off-by: Chapman Pendery <[email protected]>

.scripts/postinstall.js

@@ -0,0 +1,6 @@
+import fs from "node:fs";
+
+if (fs.existsSync("./build/commands/init.js")) {
+  const init = (await import("../build/commands/init.js")).default;
+  init.parse(["--generate-full-configs"], { from: "user" });
+}

package.json

@@ -25,7 +25,7 @@
     "lint:fix": "eslint src/ --ext .ts,.tsx --fix && prettier src/ --write",
     "debug": "node --inspect --import=tsx src/index.ts -V",
     "pre-commit": "lint-staged",
-    "postinstall": "node ./build/index.js init --generate-full-configs"
+    "postinstall": "node ./.scripts/postinstall.js"
   },
   "repository": {
     "type": "git",