- 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/state.js

@@ -47,6 +47,16 @@ function getStatePath() {
   return stateFilePath;
 }
 
+/** Create the storage directory if it does not exist (e.g. fresh install on Windows). */
+function ensureStorageDir() {
+  const dir = path.dirname(getStatePath());
+  try {
+    fs.mkdirSync(dir, { recursive: true });
+  } catch (e) {
+    if (process.stderr) process.stderr.write('[holesail-manager] could not create storage dir: ' + e.message + '\n');
+  }
+}
+
 function getLegacyPersistPath() {
   const dir = path.dirname(getStatePath());
   return path.join(dir, LEGACY_PERSIST_FILENAME);
@@ -82,6 +92,8 @@ function loadState() {
 
   try {
     const raw = fs.readFileSync(file, 'utf8');
+    const trimmed = raw && typeof raw === 'string' ? raw.trim() : '';
+    if (!trimmed) return buildDefaultState();
     const data = JSON.parse(raw);
     if (!data || typeof data !== 'object') return buildDefaultState();
     const out = {
@@ -110,6 +122,8 @@ function loadState() {
   const legacyFile = getLegacyPersistPath();
   try {
     const raw = fs.readFileSync(legacyFile, 'utf8');
+    const trimmed = raw && typeof raw === 'string' ? raw.trim() : '';
+    if (!trimmed) return buildDefaultState();
     const data = JSON.parse(raw);
     if (process.stderr) process.stderr.write('[holesail-manager] migrating from ' + legacyFile + ' to ' + file + '\n');
     const out = {
@@ -134,4 +148,4 @@ function loadState() {
   return buildDefaultState();
 }
 
-module.exports = { SETTINGS_DEFAULTS, setStoragePath, loadState, saveStateSync, buildDefaultState };
+module.exports = { SETTINGS_DEFAULTS, setStoragePath, loadState, saveStateSync, buildDefaultState, ensureStorageDir };