fix: Include pending_id in redirect URL and form data when available

abogen/web/static/find_books.js

@@ -799,6 +799,9 @@ if (modal && browser) {
         if (wizard?.requestStep) {
           try {
             const target = new URL(redirectUrl, window.location.origin);
+            if (payload.pending_id && !target.searchParams.has('pending_id')) {
+              target.searchParams.set('pending_id', payload.pending_id);
+            }
             target.searchParams.set('format', 'json');
             if (!target.searchParams.has('step')) {
               target.searchParams.set('step', 'book');
@@ -812,6 +815,7 @@ if (modal && browser) {
           window.location.assign(redirectUrl);
         }
       }
+
     } catch (error) {
       setStatus(error instanceof Error ? error.message : 'Unable to queue this book.', 'error');
     } finally {

abogen/web/static/wizard.js

@@ -330,6 +330,12 @@ const submitWizardForm = async (form, submitter) => {
   if (submitter && submitter.name && !formData.has(submitter.name)) {
     formData.append(submitter.name, submitter.value ?? "");
   }
+  
+  // Ensure pending_id is included if available in modal state but missing from form
+  if (!formData.get("pending_id") && modal && modal.dataset.pendingId) {
+    formData.set("pending_id", modal.dataset.pendingId);
+  }
+
   const allowValidation = !submitter?.hasAttribute("formnovalidate") && !form.noValidate;
   if (allowValidation && typeof form.reportValidity === "function" && !form.reportValidity()) {
     return;