- Build: explicitly write tt-native package.json into the bundle in

patchBundle so the runtime never gets empty content for that key
  (fixes "Unexpected end of JSON input" in Module._extensions..json
  when the host is started by the extension on Windows).
- State: treat empty or whitespace-only state.json (and legacy
  persist file) as missing and return default state instead of
  throwing in JSON.parse.
- State: add ensureStorageDir() and call it from message-router
  after setStoragePath so the storage directory exists on fresh
  install before any state is loaded or saved.

native-host/holesail-manager/index.js

@@ -65,6 +65,10 @@ function setStoragePath(baseDir) {
   stateModule.setStoragePath(baseDir);
 }
 
+function ensureStorageDir() {
+  stateModule.ensureStorageDir();
+}
+
 // ── Restore persisted state ───────────────────────────────────────────────────
 
 /**
@@ -108,6 +112,7 @@ module.exports = {
   setEventEmitter,
   // Storage
   setStoragePath,
+  ensureStorageDir,
   // Settings
   getSettings: settingsModule.getSettings,
   updateSettings: settingsModule.updateSettings,