Server sync, erroneous doc handling, and @binect/js v0.1.0 integration

- Add server sync to discover documents uploaded elsewhere (fixes missing
  basket documents issue)
- Handle erroneous uploads: preserve binectDocumentId for delete button
- Add "Delete from server" button for erroneous and canceled documents
- Remove archive button for active documents (in_basket, in_production)
- Auto-restore archived documents that have active status
- Refactor to use @binect/js v0.1.0 features:
  - DocumentStatus enum instead of magic numbers
  - isErroneous(), getErrors() helper functions
  - getStatusDescription() for status text
- Add binect-js improvement requirements document

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

src/utils/pdf-queue.ts

@@ -205,7 +205,8 @@ export async function syncFromServer(
   binectStatusCode: number,
   binectStatusText: string,
   price?: number,
-  recipientAddress?: string
+  recipientAddress?: string,
+  errorMessage?: string
 ): Promise<DocumentProxy> {
   const state = await loadQueue();
 
@@ -219,6 +220,7 @@ export async function syncFromServer(
     proxy.binectStatus = mapBinectStatusCode(binectStatusCode);
     if (price !== undefined) proxy.price = price;
     if (recipientAddress) proxy.recipientAddress = recipientAddress;
+    if (errorMessage) proxy.errorMessage = errorMessage;
   } else {
     // Create new proxy from server data
     proxy = {
@@ -234,7 +236,8 @@ export async function syncFromServer(
       binectStatusCode,
       binectStatusText,
       price,
-      recipientAddress
+      recipientAddress,
+      errorMessage
     };
     state.entries.unshift(proxy);
   }