feat: add hostname and IP display to Ivanti queue panel

- Add migration to add hostname column to ivanti_todo_queue table
- Update POST and batch POST endpoints to accept and store hostname
- Pass hostName from findings data when adding items to queue
- Display hostname and IP address in CARD queue section
- Display hostname and IP address in vendor (FP/Archer) queue sections

.gitignore

@@ -51,3 +51,6 @@ backend/add_vendor_to_documents.js
 backend/fix_multivendor_constraint.js
 backend/server.js-backup
 backend/setup.js-backup
+
+# Kiro implementation summary (internal only)
+docs/kiro-implementation-summary.md