Add improved Ziti status check

launcher/checks.py

@@ -1,5 +1,7 @@
 # checks.py
 import socket
+import urllib.request
+import urllib.error
 
 
 class SystemChecks:
@@ -16,11 +18,21 @@ class SystemChecks:
     return False
 
   def check_ziti_status(self):
-    """Probes the configured Ziti target endpoint."""
+    """Makes an HTTP request to the configured address."""
     if not self.ziti_target:
       return False
-    host, port = self.ziti_target
+    
-    return self._tcp_ping(host, int(port), timeout=1.0)
+    try:
+      request = urllib.request.Request(
+        self.ziti_target,
+        method="GET",
+      )
+
+      with urllib.request.urlopen(request, timeout=2.0) as response:
+        return 200 <= response.status < 300
+
+    except (urllib.error.URLError, TimeoutError, OSError):
+      return False
 
   def _tcp_ping(self, host, port, timeout=1):
     try:

launcher/style.css

@@ -6,6 +6,12 @@ window {
 }
 
 /* Large, prominent clock */
+label.date-display {
+  font-size: 30px;
+  font-weight: 500;
+  color: #fafafa;
+  padding-right: 30px;
+}
 label.clock-display {
   font-size: 32px;
   font-weight: 700;