Fix: don't apply time window when navigating to specific packet hash

Direct links like #/packets/HASH should always show the packet
regardless of the time window filter.

public/index.html

@@ -86,7 +86,7 @@
   <script src="hop-display.js?v=1774221932"></script>
   <script src="app.js?v=1774126708"></script>
   <script src="home.js?v=1774042199"></script>
-  <script src="packets.js?v=1774223564"></script>
+  <script src="packets.js?v=1774224243"></script>
   <script src="map.js?v=1774220756" onerror="console.error('Failed to load:', this.src)"></script>
   <script src="channels.js?v=1774331200" onerror="console.error('Failed to load:', this.src)"></script>
   <script src="nodes.js?v=1774221131" onerror="console.error('Failed to load:', this.src)"></script>

public/packets.js

@@ -372,7 +372,7 @@
     try {
       const params = new URLSearchParams();
       const windowMin = Number(document.getElementById('fTimeWindow')?.value || 15);
-      if (windowMin > 0) {
+      if (windowMin > 0 && !filters.hash) {
         const since = new Date(Date.now() - windowMin * 60000).toISOString();
         params.set('since', since);
       }