fix(scripts): Push-Mirror ignores untracked files

Co-authored-by: Cursor <cursoragent@cursor.com>

scripts/Push-Mirror.ps1

@@ -21,8 +21,8 @@ if ($LASTEXITCODE -ne 0) {
     throw "remote not configured: $remote"
 }
 
-if ((git status --porcelain)) {
+if ((git status --porcelain -uno)) {
-    throw 'working tree not clean; commit or stash first'
+    throw 'working tree has uncommitted tracked changes; commit or stash first'
 }
 
 $before = (git rev-parse HEAD).Trim()