Refresh erroneous documents to detect server-side fixes

- Include erroneous server documents in auto-refresh
- Documents can transition from ERRONEOUS to SHIPPABLE when fixed on server
- Clear error message when document status becomes non-erroneous
- Properly handle status transitions in refresh flow

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

src/utils/pdf-queue.ts

@@ -303,6 +303,11 @@ export async function updatePDFStatus(
     entry.contentHash = meta.contentHash;
   }
 
+  // Clear error message when transitioning to non-erroneous state
+  if (status !== 'failed' && entry.errorMessage) {
+    entry.errorMessage = undefined;
+  }
+
   // Set timestamps based on status
   if (status === 'in_basket' && !entry.uploadedAt) {
     entry.uploadedAt = Date.now();