fix: prevent tokio runtime deadlock in credential issue/verify

The credential issuance and verification handlers used
Handle::block_on() directly inside the tokio runtime, causing a
deadlock. Wrapped with block_in_place() to properly yield the
runtime thread.

Also completed full feature verification across all 25 test groups
(~175 checks) on live server.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

neode-ui/src/stores/appLauncher.ts

@@ -60,6 +60,9 @@ const PORT_TO_PROXY: Record<string, string> = {
   '4080': '/app/mempool/',
   '50002': '/app/electrs/',
   '8175': '/app/fedimint/',
+  '8176': '/app/fedimint-gateway/',
+  '3100': '/app/dwn/',
+  '18081': '/app/nostr-rs-relay/',
 }
 
 /** Rewrite to same-origin proxy so iframe can embed (avoids mixed content on HTTPS) */