[feat](trx-client): link web header title to website

Add an optional website URL to config and use it for the web header
title when present, falling back to the version title otherwise.

Co-authored-by: OpenAI Codex <codex@openai.com>
Signed-off-by: Stan Grams <sjg@haxx.space>

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

@@ -1265,6 +1265,7 @@ let serverVersion = null;
 let serverBuildDate = null;
 let serverCallsign = null;
 let ownerCallsign = null;
+let ownerWebsiteUrl = null;
 let serverRigs = [];
 let serverActiveRigId = null;
 let serverLat = null;
@@ -1282,11 +1283,26 @@ function updateFooterBuildInfo() {
 function updateTitle() {
   const titleEl = document.getElementById("rig-title");
   if (titleEl) {
-    titleEl.textContent = serverVersion ? `trx-rs v${serverVersion}` : "trx-rs";
+    if (ownerWebsiteUrl) {
+      const label = ownerCallsign || displayLabelFromUrl(ownerWebsiteUrl);
+      titleEl.innerHTML =
+        `<a class="title-link" href="${escapeMapHtml(ownerWebsiteUrl)}" target="_blank" rel="noopener">${escapeMapHtml(label)}</a>`;
+    } else {
+      titleEl.textContent = serverVersion ? `trx-rs v${serverVersion}` : "trx-rs";
+    }
   }
   updateDocumentTitle(lastSpectrumData?.rds ?? null);
 }
 
+function displayLabelFromUrl(url) {
+  try {
+    const host = new URL(url).hostname.replace(/^www\./i, "");
+    return host || url;
+  } catch (_e) {
+    return url;
+  }
+}
+
 function render(update) {
   if (!update) return;
   if (update.server_version) serverVersion = update.server_version;
@@ -1295,6 +1311,9 @@ function render(update) {
   if (typeof update.owner_callsign === "string" && update.owner_callsign.length > 0) {
     ownerCallsign = update.owner_callsign;
   }
+  if (typeof update.owner_website_url === "string" && update.owner_website_url.length > 0) {
+    ownerWebsiteUrl = update.owner_website_url;
+  }
   if (update.server_latitude != null) serverLat = update.server_latitude;
   if (update.server_longitude != null) serverLon = update.server_longitude;
   if (typeof update.initial_map_zoom === "number" && Number.isFinite(update.initial_map_zoom)) {

src/trx-client/trx-frontend/trx-frontend-http/assets/web/style.css

@@ -508,6 +508,14 @@ small { color: var(--text-muted); }
   flex: 0 1 auto;
 }
 .title { font-size: 1.4rem; font-weight: 700; display: inline-flex; align-items: center; gap: 0.35rem; }
+.title-link {
+  color: inherit;
+  text-decoration: none;
+}
+.title-link:hover {
+  text-decoration: underline;
+  text-underline-offset: 0.14em;
+}
 .overview-strip {
   width: 100%;
   margin: 0;

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

@@ -36,6 +36,7 @@ struct FrontendMeta {
     active_rig_id: Option<String>,
     rig_ids: Vec<String>,
     owner_callsign: Option<String>,
+    owner_website_url: Option<String>,
     show_sdr_gain_control: bool,
     initial_map_zoom: u8,
 }
@@ -82,6 +83,9 @@ fn inject_frontend_meta(json: &str, meta: FrontendMeta) -> String {
     if let Some(owner) = meta.owner_callsign {
         map.insert("owner_callsign".to_string(), serde_json::json!(owner));
     }
+    if let Some(url) = meta.owner_website_url {
+        map.insert("owner_website_url".to_string(), serde_json::json!(url));
+    }
     map.insert(
         "show_sdr_gain_control".to_string(),
         serde_json::json!(meta.show_sdr_gain_control),
@@ -105,6 +109,7 @@ fn frontend_meta_from_context(
         active_rig_id: active_rig_id_from_context(context),
         rig_ids: rig_ids_from_context(context),
         owner_callsign: owner_callsign_from_context(context),
+        owner_website_url: owner_website_url_from_context(context),
         show_sdr_gain_control: show_sdr_gain_control_from_context(context),
         initial_map_zoom: initial_map_zoom_from_context(context),
     }
@@ -140,6 +145,10 @@ fn owner_callsign_from_context(context: &FrontendRuntimeContext) -> Option<Strin
     context.owner_callsign.clone()
 }
 
+fn owner_website_url_from_context(context: &FrontendRuntimeContext) -> Option<String> {
+    context.owner_website_url.clone()
+}
+
 fn show_sdr_gain_control_from_context(context: &FrontendRuntimeContext) -> bool {
     context.http_show_sdr_gain_control
 }