[feat](trx-server): expose PSK Reporter status in About

Add pskreporter_status to shared rig snapshots and display it in the
HTTP frontend About tab.

Also include audio stream error log throttling to avoid repetitive ALSA
error flooding in backend logs.

Co-authored-by: Codex <codex@openai.com>
Signed-off-by: Stanislaw Grams <stanislawgrams@gmail.com>

src/trx-client/trx-frontend/trx-frontend-http/assets/web/app.js

@@ -391,6 +391,9 @@ function render(update) {
   if (update.server_callsign) {
     document.getElementById("about-server-call").textContent = update.server_callsign;
   }
+  if (update.pskreporter_status) {
+    document.getElementById("about-pskreporter").textContent = update.pskreporter_status;
+  }
   if (update.info) {
     const parts = [update.info.manufacturer, update.info.model, update.info.revision].filter(Boolean).join(" ");
     if (parts) document.getElementById("about-rig-info").textContent = parts;

src/trx-client/trx-frontend/trx-frontend-http/assets/web/index.html

@@ -224,6 +224,7 @@
         <tr><td>Rig connection</td><td id="about-rig-access">--</td></tr>
         <tr><td>Supported modes</td><td id="about-modes">--</td></tr>
         <tr><td>VFOs</td><td id="about-vfos">--</td></tr>
+        <tr><td>PSK Reporter</td><td id="about-pskreporter">--</td></tr>
         <tr><td>Client</td><td>{pkg} v{ver}</td></tr>
         <tr><td>Connected clients</td><td id="about-clients">--</td></tr>
       </table>

src/trx-client/trx-frontend/trx-frontend-http/src/api.rs

@@ -588,6 +588,7 @@ async fn wait_for_view(mut rx: watch::Receiver<RigState>) -> Result<RigSnapshot,
         server_version: state.server_version,
         server_latitude: state.server_latitude,
         server_longitude: state.server_longitude,
+        pskreporter_status: state.pskreporter_status,
         aprs_decode_enabled: state.aprs_decode_enabled,
         cw_decode_enabled: state.cw_decode_enabled,
         cw_auto: state.cw_auto,