refactor: move plugin loading into typed registry

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

@@ -1640,74 +1640,8 @@ SPDX-License-Identifier: GPL-2.0-or-later
   <script defer src="/leaflet-ais-tracksymbol.js"></script>
   <script defer src="/webgl-renderer.js"></script>
   <script defer src="/ui-core.js"></script>
+  <script defer src="/plugin-loader.js"></script>
   <script defer src="/app.js"></script>
-  <script>
-// Lazy plugin loader: loads plugin scripts when their tab/feature is first activated
-(function() {
-  var pluginScripts = {
-    'digital-modes': ['/ft8.js', '/ft4.js', '/ft2.js', '/wspr.js', '/cw.js', '/background-decode.js', '/sat.js', '/wefax.js'],
-    'map-data': ['/map-core.js', '/ais.js', '/vdes.js', '/aprs.js', '/hf-aprs.js'],
-    'map': ['/map-core.js', '/ais.js', '/vdes.js', '/aprs.js', '/hf-aprs.js', '/sat.js', '/sat-scheduler.js'],
-    'statistics': ['/map-core.js'],
-    'bookmarks': ['/bookmarks.js'],
-    'recorder': [],
-    'settings': ['/vchan.js', '/scheduler.js']
-  };
-  var loaded = new Set();
-  var loading = new Map();
-
-  function loadScript(src) {
-    if (loaded.has(src)) return Promise.resolve();
-    if (loading.has(src)) return loading.get(src);
-
-    var request = new Promise(function(resolve, reject) {
-      var s = document.createElement('script');
-      s.src = src;
-      s.onload = function() {
-        loaded.add(src);
-        loading.delete(src);
-        resolve();
-      };
-      s.onerror = function() {
-        loading.delete(src);
-        reject(new Error('Failed to load plugin script: ' + src));
-      };
-      document.body.appendChild(s);
-    });
-    loading.set(src, request);
-    return request;
-  }
-
-  function loadPlugins(tab) {
-    var scripts = pluginScripts[tab];
-    if (!scripts) return Promise.resolve();
-    return scripts.reduce(function(sequence, src) {
-      return sequence.then(function() { return loadScript(src); });
-    }, Promise.resolve());
-  }
-
-  function requestPlugins(tab) {
-    return loadPlugins(tab).catch(function(err) {
-      console.error(err);
-    });
-  }
-  // Eager plugin loading is triggered by app.js (after window.trx is set up)
-  // via window.loadEagerPlugins().  Dynamic scripts are effectively async, so
-  // loading them before app.js would cause map-core.js to crash when
-  // window.trx is not yet defined.
-  window.loadEagerPlugins = function() {
-    return Promise.all(
-      ['digital-modes', 'map-data', 'bookmarks', 'settings'].map(requestPlugins)
-    );
-  };
-  // Load others on tab switch
-  document.addEventListener('click', function(e) {
-    var tab = e.target.closest('[data-tab]');
-    if (tab) requestPlugins(tab.dataset.tab);
-  });
-  window.loadPluginsForTab = loadPlugins;
-})();
-  </script>
   <!-- Template cloning is handled by navigateToTab() in app.js -->
 </body>
 </html>