Let the config choose protocol 2 or 3, and fall back for one session only.

The default stays v2. A reflector that refuses that version and names the other gets one session of it, then the station announces the configured protocol again.

Co-authored-by: Cursor <cursoragent@cursor.com>

frontend/dist/app.css

@@ -1,12 +1,25 @@
+html,
+body {
+  height: 100%;
+}
+
 body {
   margin: 0;
+  overflow: hidden;
   background: #101418;
   color: #f2f4f6;
   font: 16px/1.4 system-ui, sans-serif;
 }
 
 main {
+  box-sizing: border-box;
+  height: 100%;
   padding: 24px;
+  overflow: auto;
+}
+
+body.config-open main {
+  display: none;
 }
 
 .status {
@@ -66,14 +79,28 @@ main {
 }
 
 #config {
-  position: fixed;
-  top: 64px;
-  right: 0;
-  bottom: 0;
-  left: 0;
   box-sizing: border-box;
+  height: 100%;
   padding: 16px;
-  background: rgba(16, 20, 24, 0.45);
+  overflow-x: hidden;
+  overflow-y: auto;
+  background: #101418;
+  scrollbar-color: #8b98a3 #0c1014;
+  scrollbar-width: auto;
+}
+
+#config::-webkit-scrollbar {
+  width: 12px;
+}
+
+#config::-webkit-scrollbar-track {
+  background: #0c1014;
+}
+
+#config::-webkit-scrollbar-thumb {
+  background: #8b98a3;
+  border: 2px solid #0c1014;
+  border-radius: 6px;
 }
 
 #config[hidden] {
@@ -106,7 +133,8 @@ main {
   font-size: 14px;
 }
 
-#config input {
+#config input,
+#config select {
   box-sizing: border-box;
   display: block;
   width: 100%;