fix(init): remove double-close of Dir handle in walkDir

for-await-of auto-closes the Dir handle on completion (including break).
The finally block was double-closing it, which throws ERR_DIR_CLOSED on
Node.js (masked by Bun which silently succeeds). Matches the existing
pattern in env-file.ts and project-root.ts.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: betegon

src/lib/init/local-ops.ts

@@ -411,6 +411,7 @@ async function walkDir(
     return;
   }
 
+  // No explicit handle.close() needed: for-await-of auto-closes the Dir
   try {
     for await (const entry of handle) {
       if (ctx.entries.length >= ctx.maxEntries) {
@@ -420,8 +421,6 @@ async function walkDir(
     }
   } catch {
     // Directory unreadable (ENOENT, EACCES, etc.) — skip gracefully
-  } finally {
-    await handle.close();
   }
 }