[feat](trx-frontend-http): improve scheduler and decode map controls

Remove settings rig pickers, restore the last scheduler cycle on release, fix FT8 locator role parsing, and add toggleable decode contact paths on the map.

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/plugins/background-decode.js

@@ -16,34 +16,16 @@
   function initBackgroundDecode(rigId, role) {
     backgroundDecodeRole = role;
     currentRigId = rigId || null;
-    renderRigSelect();
-    loadBackgroundDecode();
+    if (currentRigId) loadBackgroundDecode();
     startStatusPolling();
   }
 
-  function renderRigSelect() {
-    const sel = document.getElementById("background-decode-rig-select");
-    if (!sel) return;
-    const rigs = typeof getAvailableRigIds === "function" ? getAvailableRigIds() : [];
-    if (!rigs.length) return;
-    const prevRigId = currentRigId;
-    sel.innerHTML = "";
-    rigs.forEach(function (rigId) {
-      const opt = document.createElement("option");
-      opt.value = rigId;
-      opt.textContent = rigId;
-      if (rigId === currentRigId) opt.selected = true;
-      sel.appendChild(opt);
-    });
-    if (!currentRigId || !rigs.includes(currentRigId)) {
-      currentRigId = rigs[0];
-      sel.value = currentRigId;
-    } else {
-      sel.value = currentRigId;
-    }
-    if (currentRigId && currentRigId !== prevRigId) {
-      loadBackgroundDecode();
-    }
+  function setBackgroundDecodeRig(rigId) {
+    const nextRigId = rigId || null;
+    if (nextRigId === currentRigId) return;
+    currentRigId = nextRigId;
+    if (!currentRigId) return;
+    loadBackgroundDecode();
   }
 
   function apiGetConfig(rigId) {
@@ -346,15 +328,6 @@
   }
 
   function wireBackgroundDecodeEvents() {
-    const rigSel = document.getElementById("background-decode-rig-select");
-    if (rigSel && !rigSel._wired) {
-      rigSel._wired = true;
-      rigSel.addEventListener("change", function () {
-        currentRigId = rigSel.value;
-        loadBackgroundDecode();
-      });
-    }
-
     const addBtn = document.getElementById("background-decode-bookmark-add");
     if (addBtn && !addBtn._wired) {
       addBtn._wired = true;
@@ -376,5 +349,5 @@
 
   window.initBackgroundDecode = initBackgroundDecode;
   window.wireBackgroundDecodeEvents = wireBackgroundDecodeEvents;
-  window.reloadBackgroundDecodeRigSelect = renderRigSelect;
+  window.setBackgroundDecodeRig = setBackgroundDecodeRig;
 })();