完成全项目响应式审核与换机交接

tests/f09-media-upload-contract.ps1

@@ -26,6 +26,8 @@ foreach ($expected in @(
   'class="media-photo-editor"',
   'class="media-photo-editor__thumb"',
   'class="media-photo-editor__position"',
+  '<textarea',
+  'auto-height',
   'const MAX_PHOTOS = 9;',
   'const selectMockPhotos = () =>',
   'const selectPhoto = (index) =>',
@@ -71,6 +73,7 @@ foreach ($requiredPosition in @(
   if ($page -notmatch $requiredPosition) { throw "F09 required thumbnail overlay boundary missing: $requiredPosition" }
 }
 if ([regex]::Matches($page, 'position\s*:').Count -ne 3) { throw 'F09 must keep only thumbnail badges and their local photo boundary positioned' }
+if ([regex]::Matches($page, '<textarea(?=[^>]*\sauto-height(?:\s|>))').Count -ne 2) { throw 'F09 batch and per-photo descriptions must both grow with content' }
 
 if ($catalog -match '(?m)^\s*f09\s*:') {
   throw 'F09 obsolete page-catalog owner must be removed'