docs/frontend-architecture.md

@@ -39,6 +39,15 @@ entry, so they use three intentional host namespaces:
 | `window.trxPluginRuntime` | Typed decoder registration and message dispatch | Runtime object is installed once; plugins register lifecycle handlers through its API. |
 | `window.trxUi` | Notifications, confirmations, tab accessibility, and control presentation | Installed once by `ui-core.ts`; consumers call methods but do not replace them. |
 
+`frontend/src/plugins/host.ts` declares the typed view of `window.trx.state`
+and `window.trx.core` that feature bundles consume. Feature entries import it
+instead of re-deriving the contract, so a service that moves out of the
+application entry is added in one place. Application state that a feature needs
+belongs in `trx.state`, and shared behavior belongs in `trx.core`; a feature
+that has to intercept application behavior registers a `modules.*` method the
+application calls, as the virtual-channel entry does for tuning, mode,
+bandwidth, and frequency display.
+
 The WebGL adapter exposes `createTrxWebGlRenderer`, `trxParseCssColor`,
 `trxHslToRgba`, and `trxClearCssColorCache` for the application bundle. Leaflet
 adds `L.TrxAisTrackSymbol` and `L.trxAisTrackSymbol` to the vendored Leaflet

src/trx-client/trx-frontend/trx-frontend-http/assets/web/generated/ais.js

@@ -1,6 +1,11 @@
+import {
+  hostCore,
+  hostState
+} from "./chunk-KL66PICH.js";
+
 // src/plugins/ais.ts
 var aisWindow = window;
-var escapeAisHtml = (input) => aisWindow.escapeMapHtml?.(input) ?? input.replaceAll("&", "&amp;").replaceAll("<", "&lt;").replaceAll(">", "&gt;").replaceAll('"', "&quot;");
+var escapeAisHtml = (input) => hostCore.escapeMapHtml(input);
 var aisStatus = document.getElementById("ais-status");
 var aisMessagesEl = document.getElementById("ais-messages");
 var aisFilterInput = document.getElementById("ais-filter");
@@ -119,10 +124,10 @@ function aisRouteText(msg) {
   return [msg.callsign, msg.destination].filter(Boolean).join(" -> ");
 }
 function aisDistanceText(msg) {
-  if (aisWindow.serverLat == null || aisWindow.serverLon == null || msg.lat == null || msg.lon == null || !aisWindow.haversineKm) {
+  if (hostState.serverLat == null || hostState.serverLon == null || msg.lat == null || msg.lon == null) {
     return "";
   }
-  const distKm = aisWindow.haversineKm(aisWindow.serverLat, aisWindow.serverLon, msg.lat, msg.lon);
+  const distKm = hostCore.haversineKm(hostState.serverLat, hostState.serverLon, msg.lat, msg.lon);
   if (!Number.isFinite(distKm)) return "";
   if (distKm < 1) return `${Math.round(distKm * 1e3)} m from TRX`;
   return `${distKm.toFixed(1)} km from TRX`;
@@ -303,7 +308,7 @@ document.getElementById("settings-clear-ais-history")?.addEventListener("click",
   void (async () => {
     if (!await aisWindow.trxUi.confirm({ title: "Clear AIS history?", message: "All stored AIS messages will be permanently removed.", confirmLabel: "Clear history" })) return;
     try {
-      await aisWindow.postPath?.("/clear_ais_decode");
+      await hostCore.postPath("/clear_ais_decode");
       resetAisHistoryView();
     } catch (e) {
       console.error("AIS history clear failed", e);

src/trx-client/trx-frontend/trx-frontend-http/assets/web/generated/app.js

@@ -3206,6 +3206,7 @@ function refreshWavelengthDisplay(hz) {
   wavelengthEl.textContent = formatWavelength(hz);
 }
 function refreshFreqDisplay() {
+  if (window.trx?.modules.vchan?.interceptFreqDisplay()) return;
   if (lastFreqHz == null || freqDirty) return;
   freqEl.value = formatFrequencyForStep(lastFreqHz, jogUnit);
   refreshWavelengthDisplay(lastFreqHz);
@@ -5775,6 +5776,19 @@ Object.defineProperties(trxState, {
   } },
   lastModeName: { get() {
     return lastModeName;
+  }, set(v) {
+    lastModeName = v;
+  } },
+  jogUnit: { get() {
+    return jogUnit;
+  } },
+  rxActive: { get() {
+    return rxActive;
+  } },
+  audioChannelOverride: { get() {
+    return _audioChannelOverride;
+  }, set(v) {
+    _audioChannelOverride = v;
   } },
   lastSpectrumData: { get() {
     return lastSpectrumData;
@@ -5832,6 +5846,16 @@ var trxCore = Object.freeze({
   syncBandwidthInput,
   scheduleSpectrumDraw,
   onDecoderRegistryReady,
+  formatFreqForStep: formatFrequencyForStep,
+  refreshFreqDisplay,
+  setJogDivisor,
+  mwDefaultsForMode,
+  resetRdsDisplay,
+  positionRdsPsOverlay,
+  updateWfmControls,
+  updateSdrSquelchControlVisibility,
+  startRxAudio,
+  stopRxAudio,
   latLonToMaidenhead,
   locatorToLatLon,
   haversineKm,

src/trx-client/trx-frontend/trx-frontend-http/assets/web/generated/aprs.js

@@ -8,12 +8,16 @@ import {
   renderAprsInfo,
   renderLocalAprsSymbol
 } from "./chunk-M2I6DH4X.js";
+import {
+  hostCore,
+  hostState
+} from "./chunk-KL66PICH.js";
 
 // src/plugins/aprs.ts
 var aprsWindow = window;
-var escapeAprsHtml = (input) => aprsWindow.escapeMapHtml?.(input) ?? input.replaceAll("&", "&amp;").replaceAll("<", "&lt;").replaceAll(">", "&gt;").replaceAll('"', "&quot;");
+var escapeAprsHtml = (input) => hostCore.escapeMapHtml(input);
 var showAprsHint = (message, durationMs) => {
-  aprsWindow.showHint?.(message, durationMs);
+  hostCore.showHint(message, durationMs);
 };
 var aprsStatus = document.getElementById("aprs-status");
 var aprsPacketsEl = document.getElementById("aprs-packets");
@@ -58,8 +62,8 @@ function scheduleAprsBarUpdate() {
   });
 }
 function aprsDistanceText(pkt) {
-  if (aprsWindow.serverLat == null || aprsWindow.serverLon == null || pkt.lat == null || pkt.lon == null || !aprsWindow.haversineKm) return "";
+  if (hostState.serverLat == null || hostState.serverLon == null || pkt.lat == null || pkt.lon == null) return "";
-  const distKm = aprsWindow.haversineKm(aprsWindow.serverLat, aprsWindow.serverLon, pkt.lat, pkt.lon);
+  const distKm = hostCore.haversineKm(hostState.serverLat, hostState.serverLon, pkt.lat, pkt.lon);
   if (!Number.isFinite(distKm)) return "";
   if (distKm < 1) return `${Math.round(distKm * 1e3)} m from TRX`;
   return `${distKm.toFixed(1)} km from TRX`;
@@ -260,7 +264,7 @@ document.getElementById("settings-clear-aprs-history")?.addEventListener("click"
   void (async () => {
     if (!await aprsWindow.trxUi.confirm({ title: "Clear APRS history?", message: "All stored APRS packets will be permanently removed.", confirmLabel: "Clear history" })) return;
     try {
-      await aprsWindow.postPath?.("/clear_aprs_decode");
+      await hostCore.postPath("/clear_aprs_decode");
       resetAprsHistoryView();
     } catch (e) {
       console.error("APRS history clear failed", e);

src/trx-client/trx-frontend/trx-frontend-http/assets/web/generated/background-decode.js

@@ -1,3 +1,7 @@
+import {
+  hostState
+} from "./chunk-KL66PICH.js";
+
 // src/plugins/background-decode.ts
 var bgdWindow = window;
 (function() {
@@ -104,7 +108,7 @@ var bgdWindow = window;
     }
     setCheckbox("background-decode-enabled", currentConfig.enabled);
     renderBookmarkChecklist();
-    const isControl = backgroundDecodeRole === "control" || bgdWindow.authEnabled === false;
+    const isControl = backgroundDecodeRole === "control" || hostState.authEnabled === false;
     const panel = document.getElementById("background-decode-panel");
     if (panel) {
       panel.querySelectorAll("input, select, button.sch-write").forEach(function(el) {

src/trx-client/trx-frontend/trx-frontend-http/assets/web/generated/bookmarks.js

@@ -1,7 +1,10 @@
+import {
+  hostCore,
+  hostState
+} from "./chunk-KL66PICH.js";
+
 // src/plugins/bookmarks.ts
 var bridge = window;
-var trxState = bridge.trx.state;
-var trxCore = bridge.trx.core;
 function bmEl(id) {
   const element = document.getElementById(id);
   if (!element) throw new Error(`Missing bookmark element #${id}`);
@@ -39,7 +42,7 @@ function bmEsc(str) {
   return d.innerHTML;
 }
 function bmCanControl() {
-  return !trxState.authEnabled || trxState.authRole === "control";
+  return !hostState.authEnabled || hostState.authRole === "control";
 }
 function bmSyncAccess() {
   const canCtrl = bmCanControl();
@@ -49,7 +52,7 @@ function bmSyncAccess() {
   if (selectAllBtn) selectAllBtn.style.display = canCtrl ? "" : "none";
 }
 function bmListScope() {
-  return trxState.lastActiveRigId || "general";
+  return hostState.lastActiveRigId || "general";
 }
 async function bmFetchOverlay() {
   const overlayScope = bmListScope();
@@ -65,7 +68,7 @@ async function bmFetchOverlay() {
   if (typeof bridge.syncBookmarkMapLocators === "function") {
     bridge.syncBookmarkMapLocators(bmOverlayList);
   }
-  trxCore.scheduleSpectrumDraw();
+  hostCore.scheduleSpectrumDraw();
 }
 async function bmFetch(categoryFilter) {
   let url = "/bookmarks";
@@ -188,11 +191,11 @@ function bmChangePage(delta) {
   bmRender(bmFilteredList);
 }
 function bmReadDecoders() {
-  return trxState.decoderRegistry.filter((d) => d.bookmark_selectable).filter((d) => bmOptionalEl("bm-dec-" + d.id)?.checked).map((d) => d.id);
+  return hostState.decoderRegistry.filter((d) => d.bookmark_selectable).filter((d) => bmOptionalEl("bm-dec-" + d.id)?.checked).map((d) => d.id);
 }
 function bmWriteDecoders(decoders) {
   const set = new Set(decoders || []);
-  trxState.decoderRegistry.filter((d) => d.bookmark_selectable).forEach((d) => {
+  hostState.decoderRegistry.filter((d) => d.bookmark_selectable).forEach((d) => {
     const el = bmOptionalEl("bm-dec-" + d.id);
     if (el) el.checked = set.has(d.id);
   });
@@ -201,7 +204,7 @@ function bmBuildDecoderCheckboxes() {
   const container = bmEl("bm-decoder-checkboxes");
   if (!container) return;
   container.innerHTML = "";
-  trxState.decoderRegistry.filter((d) => d.bookmark_selectable).forEach((d) => {
+  hostState.decoderRegistry.filter((d) => d.bookmark_selectable).forEach((d) => {
     const label = document.createElement("label");
     label.className = "bm-decoder-check";
     label.innerHTML = '<input type="checkbox" id="bm-dec-' + d.id + '" value="' + d.id + '" /> ' + d.label;
@@ -231,17 +234,17 @@ function bmCloseForm() {
   if (wrap) wrap.style.display = "none";
 }
 function bmPrefillFromStatus() {
-  const freqHz = trxState.lastFreqHz;
+  const freqHz = hostState.lastFreqHz;
   if (freqHz != null && Number.isFinite(freqHz)) {
     bmEl("bm-freq").value = String(Math.round(freqHz));
   }
-  if (trxState.lastModeName) {
+  if (hostState.lastModeName) {
-    bmEl("bm-mode").value = trxState.lastModeName;
+    bmEl("bm-mode").value = hostState.lastModeName;
   }
-  if (trxState.currentBandwidthHz > 0) {
+  if (hostState.currentBandwidthHz > 0) {
-    bmEl("bm-bw").value = String(Math.round(trxState.currentBandwidthHz));
+    bmEl("bm-bw").value = String(Math.round(hostState.currentBandwidthHz));
   }
-  const activeDecoders = trxState.decoderRegistry.filter((d) => d.bookmark_selectable && d.activation === "toggle").filter((d) => bmOptionalEl(d.id + "-decode-toggle-btn")?.dataset.enabled === "true").map((d) => d.id);
+  const activeDecoders = hostState.decoderRegistry.filter((d) => d.bookmark_selectable && d.activation === "toggle").filter((d) => bmOptionalEl(d.id + "-decode-toggle-btn")?.dataset.enabled === "true").map((d) => d.id);
   bmWriteDecoders(activeDecoders);
 }
 async function bmSave(e) {
@@ -327,36 +330,36 @@ function bmApply(bm) {
       modeEl.value = (bm.mode || "").toUpperCase();
     }
     if (bm.bandwidth_hz) {
-      trxState.currentBandwidthHz = bm.bandwidth_hz;
+      hostState.currentBandwidthHz = bm.bandwidth_hz;
-      trxCore.syncBandwidthInput(bm.bandwidth_hz);
+      hostCore.syncBandwidthInput(bm.bandwidth_hz);
     }
-    trxCore.armOptimisticFrequency(bm.freq_hz);
+    hostCore.armOptimisticFrequency(bm.freq_hz);
-    trxCore.applyLocalTunedFrequency(bm.freq_hz, true);
+    hostCore.applyLocalTunedFrequency(bm.freq_hz, true);
-    if (trxState.lastSpectrumData) {
+    if (hostState.lastSpectrumData) {
-      trxCore.scheduleSpectrumDraw();
+      hostCore.scheduleSpectrumDraw();
     }
     const tunePromise = (async () => {
       await bridge.trx.modules.vchan?.takeSchedulerControl();
       const onVirtual = await bridge.trx.modules.vchan?.interceptMode(bm.mode) ?? false;
       if (!onVirtual) {
-        await trxCore.postPath("/set_mode?mode=" + encodeURIComponent(bm.mode));
+        await hostCore.postPath("/set_mode?mode=" + encodeURIComponent(bm.mode));
       }
       if (bm.bandwidth_hz) {
         const bwHandledByVchan = await bridge.trx.modules.vchan?.interceptBandwidth(bm.bandwidth_hz) ?? false;
         if (!bwHandledByVchan) {
-          await trxCore.postPath(`/set_bandwidth?hz=${bm.bandwidth_hz}`);
+          await hostCore.postPath(`/set_bandwidth?hz=${bm.bandwidth_hz}`);
         }
       }
-      trxCore.setRigFrequency(bm.freq_hz);
+      hostCore.setRigFrequency(bm.freq_hz);
     })();
     const hasDecoders = Array.isArray(bm.decoders) && bm.decoders.length > 0;
     const modeUp = (bm.mode || "").toUpperCase();
-    const allToggleDecoders = trxState.decoderRegistry.filter(
+    const allToggleDecoders = hostState.decoderRegistry.filter(
       (d) => d.activation === "toggle"
     );
     const decoderPromise = allToggleDecoders.length ? (async () => {
       let statusUrl = "/status";
-      const rigId = trxState.lastActiveRigId;
+      const rigId = hostState.lastActiveRigId;
       if (rigId) {
         statusUrl += "?remote=" + encodeURIComponent(rigId);
       }
@@ -377,7 +380,7 @@ function bmApply(bm) {
           wanted = currentlyOn;
         }
         if (wanted !== currentlyOn) {
-          toggles.push(trxCore.postPath("/toggle_" + d.id.replace(/-/g, "_") + "_decode"));
+          toggles.push(hostCore.postPath("/toggle_" + d.id.replace(/-/g, "_") + "_decode"));
         }
       }
       if (toggles.length) await Promise.all(toggles);
@@ -427,8 +430,8 @@ function bmUpdateSelectionUi() {
 function bmPopulateMoveTarget() {
   const sel = bmEl("bm-move-target");
   if (!sel) return;
-  const rigIds = trxState.lastRigIds;
+  const rigIds = hostState.lastRigIds;
-  const displayNames = trxState.lastRigDisplayNames;
+  const displayNames = hostState.lastRigDisplayNames;
   const prev = sel.value;
   sel.innerHTML = "";
   if (bmScope !== "general") {
@@ -533,8 +536,8 @@ async function bmDeleteSelected() {
 function bmPopulateScopePicker() {
   const picker = bmEl("bm-scope-picker");
   if (!picker) return;
-  const rigIds = trxState.lastRigIds;
+  const rigIds = hostState.lastRigIds;
-  const displayNames = trxState.lastRigDisplayNames;
+  const displayNames = hostState.lastRigDisplayNames;
   const prev = picker.value;
   while (picker.options.length > 1) picker.remove(1);
   rigIds.forEach((id) => {
@@ -553,7 +556,7 @@ function bmPopulateScopePicker() {
 (function initBookmarks() {
   bmSyncAccess();
   bmBuildDecoderCheckboxes();
-  trxCore.onDecoderRegistryReady(bmBuildDecoderCheckboxes);
+  hostCore.onDecoderRegistryReady(bmBuildDecoderCheckboxes);
   bmPopulateScopePicker();
   const scopePicker = bmEl("bm-scope-picker");
   if (scopePicker) {

src/trx-client/trx-frontend/trx-frontend-http/assets/web/generated/chunk-KL66PICH.js

@@ -0,0 +1,9 @@
+// src/plugins/host.ts
+var host = window;
+var hostState = host.trx.state;
+var hostCore = host.trx.core;
+
+export {
+  hostState,
+  hostCore
+};

src/trx-client/trx-frontend/trx-frontend-http/assets/web/generated/chunk-O2Y7YEVQ.js

@@ -1,5 +1,13 @@
+import {
+  hostCore
+} from "./chunk-KL66PICH.js";
+
 // src/plugins/ftx-family.ts
 var bridge = window;
+function formatBarTime(timestampMs) {
+  if (!timestampMs) return "--:--:--";
+  return new Date(timestampMs).toLocaleTimeString([], { hour: "2-digit", minute: "2-digit", second: "2-digit" });
+}
 function finiteNumber(value) {
   const number = typeof value === "number" ? value : Number(value);
   return Number.isFinite(number) ? number : null;
@@ -198,7 +206,7 @@ function initializeFtxDecoder(config) {
     let html = "";
     for (const message of recent) {
       const timestamp = finiteNumber(message._tsMs ?? message.ts_ms);
-      const time = timestamp === null ? "" : `<span class="aprs-bar-time">${bridge.fmtTime?.(timestamp) ?? ""}</span>`;
+      const time = timestamp === null ? "" : `<span class="aprs-bar-time">${formatBarTime(timestamp)}</span>`;
       const snr = finiteNumber(message.snr_db);
       const delta = finiteNumber(message.dt_s);
       const frequency = displayFrequency(message.freq_hz);
@@ -243,7 +251,7 @@ function initializeFtxDecoder(config) {
     void (async () => {
       try {
         await bridge.takeSchedulerControlForDecoderDisable?.(toggle);
-        await bridge.postPath?.(`/toggle_${id}_decode`);
+        await hostCore.postPath(`/toggle_${id}_decode`);
       } catch (error) {
         console.error(`${label} toggle failed`, error);
       }
@@ -253,7 +261,7 @@ function initializeFtxDecoder(config) {
     void (async () => {
       if (!await bridge.trxUi.confirm({ title: `Clear ${label} history?`, message: `All stored ${label} decodes will be permanently removed.`, confirmLabel: "Clear history" })) return;
       try {
-        await bridge.postPath?.(`/clear_${id}_decode`);
+        await hostCore.postPath(`/clear_${id}_decode`);
         reset();
       } catch (error) {
         console.error(`${label} history clear failed`, error);

src/trx-client/trx-frontend/trx-frontend-http/assets/web/generated/cw.js

@@ -1,3 +1,7 @@
+import {
+  hostCore
+} from "./chunk-KL66PICH.js";
+
 // src/plugins/cw.ts
 var cwWindow = window;
 var cwStatusEl = document.getElementById("cw-status");
@@ -25,7 +29,7 @@ var cwBarCurrentLine = null;
 var cwBarDismissedAtMs = 0;
 var cwAutoLocalOverride = null;
 function escapeCwHtml(input) {
-  return cwWindow.escapeMapHtml?.(input) ?? input.replaceAll("&", "&amp;").replaceAll("<", "&lt;").replaceAll(">", "&gt;").replaceAll('"', "&quot;");
+  return hostCore.escapeMapHtml(input);
 }
 function applyCwAutoUi(enabled) {
   if (cwAutoInput) cwAutoInput.checked = enabled;
@@ -246,7 +250,7 @@ async function setCwTone(tone, { syncInput = true } = {}) {
     cwToneInput.value = String(clamped);
   }
   try {
-    await cwWindow.postPath?.(`/set_cw_tone?tone_hz=${encodeURIComponent(clamped)}`);
+    await hostCore.postPath(`/set_cw_tone?tone_hz=${encodeURIComponent(clamped)}`);
   } catch (e) {
     console.error("CW tone set failed", e);
   }
@@ -259,7 +263,7 @@ if (cwAutoInput) {
       cwAutoLocalOverride = enabled;
       applyCwAutoUi(enabled);
       try {
-        await cwWindow.postPath?.(`/set_cw_auto?enabled=${enabled ? "true" : "false"}`);
+        await hostCore.postPath(`/set_cw_auto?enabled=${enabled ? "true" : "false"}`);
         drawCwTonePicker();
       } catch (error) {
         console.error("CW auto toggle failed", error);
@@ -276,7 +280,7 @@ if (cwWpmInput) {
       const wpm = clampCwWpm(cwWpmInput.value);
       cwWpmInput.value = String(wpm);
       try {
-        await cwWindow.postPath?.(`/set_cw_wpm?wpm=${encodeURIComponent(wpm)}`);
+        await hostCore.postPath(`/set_cw_wpm?wpm=${encodeURIComponent(wpm)}`);
       } catch (error) {
         console.error("CW WPM set failed", error);
       }
@@ -312,7 +316,7 @@ document.getElementById("settings-clear-cw-history")?.addEventListener("click",
   void (async () => {
     if (!await cwWindow.trxUi.confirm({ title: "Clear CW history?", message: "All stored CW decodes will be permanently removed.", confirmLabel: "Clear history" })) return;
     try {
-      await cwWindow.postPath?.("/clear_cw_decode");
+      await hostCore.postPath("/clear_cw_decode");
       resetCwHistoryView();
     } catch (error) {
       console.error("CW history clear failed", error);

src/trx-client/trx-frontend/trx-frontend-http/assets/web/generated/ft2.js

@@ -1,6 +1,7 @@
 import {
   initializeFtxDecoder
-} from "./chunk-SGMG5LG2.js";
+} from "./chunk-O2Y7YEVQ.js";
+import "./chunk-KL66PICH.js";
 
 // src/plugins/ft2.ts
 initializeFtxDecoder({ id: "ft2", label: "FT2", periodMs: 3750 });

src/trx-client/trx-frontend/trx-frontend-http/assets/web/generated/ft4.js

@@ -1,6 +1,7 @@
 import {
   initializeFtxDecoder
-} from "./chunk-SGMG5LG2.js";
+} from "./chunk-O2Y7YEVQ.js";
+import "./chunk-KL66PICH.js";
 
 // src/plugins/ft4.ts
 initializeFtxDecoder({ id: "ft4", label: "FT4", periodMs: 7500 });

src/trx-client/trx-frontend/trx-frontend-http/assets/web/generated/ft8.js

@@ -2,7 +2,8 @@ import {
   initializeFt8FamilyBar,
   initializeFtxDecoder,
   installFtxCompatibilityHelpers
-} from "./chunk-SGMG5LG2.js";
+} from "./chunk-O2Y7YEVQ.js";
+import "./chunk-KL66PICH.js";
 
 // src/plugins/ft8.ts
 installFtxCompatibilityHelpers();

src/trx-client/trx-frontend/trx-frontend-http/assets/web/generated/hf-aprs.js

@@ -8,10 +8,14 @@ import {
   renderAprsInfo,
   renderLocalAprsSymbol
 } from "./chunk-M2I6DH4X.js";
+import {
+  hostCore,
+  hostState
+} from "./chunk-KL66PICH.js";
 
 // src/plugins/hf-aprs.ts
 var hfAprsWindow = window;
-var escapeHfAprsHtml = (input) => hfAprsWindow.escapeMapHtml?.(input) ?? input.replaceAll("&", "&amp;").replaceAll("<", "&lt;").replaceAll(">", "&gt;").replaceAll('"', "&quot;");
+var escapeHfAprsHtml = (input) => hostCore.escapeMapHtml(input);
 var hfAprsStatus = document.getElementById("hf-aprs-status");
 var hfAprsPacketsEl = document.getElementById("hf-aprs-packets");
 var hfAprsFilterInput = document.getElementById("hf-aprs-filter");
@@ -44,8 +48,8 @@ function scheduleHfAprsHistoryRender() {
   renderHfAprsHistory();
 }
 function hfAprsDistanceText(pkt) {
-  if (hfAprsWindow.serverLat == null || hfAprsWindow.serverLon == null || pkt.lat == null || pkt.lon == null || !hfAprsWindow.haversineKm) return "";
+  if (hostState.serverLat == null || hostState.serverLon == null || pkt.lat == null || pkt.lon == null) return "";
-  const distKm = hfAprsWindow.haversineKm(hfAprsWindow.serverLat, hfAprsWindow.serverLon, pkt.lat, pkt.lon);
+  const distKm = hostCore.haversineKm(hostState.serverLat, hostState.serverLon, pkt.lat, pkt.lon);
   if (!Number.isFinite(distKm)) return "";
   if (distKm < 1) return `${Math.round(distKm * 1e3)} m from TRX`;
   return `${distKm.toFixed(1)} km from TRX`;
@@ -134,10 +138,10 @@ function renderHfAprsRow(pkt, isFresh) {
           const clipboard = Reflect.get(navigator, "clipboard");
           if (clipboard) {
             await clipboard.writeText(raw);
-            hfAprsWindow.showHint?.("Coordinates copied", 1200);
+            hostCore.showHint("Coordinates copied", 1200);
           }
         } catch {
-          hfAprsWindow.showHint?.("Copy failed", 1500);
+          hostCore.showHint("Copy failed", 1500);
         }
       })();
     });
@@ -201,7 +205,7 @@ hfAprsDecodeToggleBtn?.addEventListener("click", () => {
   void (async () => {
     try {
       await hfAprsWindow.takeSchedulerControlForDecoderDisable?.(hfAprsDecodeToggleBtn);
-      await hfAprsWindow.postPath?.("/toggle_hf_aprs_decode");
+      await hostCore.postPath("/toggle_hf_aprs_decode");
     } catch (e) {
       console.error("HF APRS toggle failed", e);
     }
@@ -211,7 +215,7 @@ document.getElementById("settings-clear-hf-aprs-history")?.addEventListener("cli
   void (async () => {
     if (!await hfAprsWindow.trxUi.confirm({ title: "Clear HF APRS history?", message: "All stored HF APRS packets will be permanently removed.", confirmLabel: "Clear history" })) return;
     try {
-      await hfAprsWindow.postPath?.("/clear_hf_aprs_decode");
+      await hostCore.postPath("/clear_hf_aprs_decode");
       resetHfAprsHistoryView();
     } catch (e) {
       console.error("HF APRS history clear failed", e);

src/trx-client/trx-frontend/trx-frontend-http/assets/web/generated/sat.js

@@ -1,3 +1,7 @@
+import {
+  hostCore
+} from "./chunk-KL66PICH.js";
+
 // src/plugins/sat.ts
 var satWindow = window;
 var satDom = {
@@ -243,7 +247,7 @@ lrptDecodeToggleBtn?.addEventListener("click", () => {
   void (async () => {
     try {
       await satWindow.takeSchedulerControlForDecoderDisable?.(lrptDecodeToggleBtn);
-      await satWindow.postPath?.("/toggle_lrpt_decode");
+      await hostCore.postPath("/toggle_lrpt_decode");
     } catch (e) {
       console.error("LRPT toggle failed", e);
     }
@@ -264,7 +268,7 @@ document.getElementById("settings-clear-sat-history")?.addEventListener("click",
   void (async () => {
     if (!await satWindow.trxUi.confirm({ title: "Clear satellite history?", message: "All stored satellite decodes will be permanently removed.", confirmLabel: "Clear history" })) return;
     try {
-      await satWindow.postPath?.("/clear_lrpt_decode");
+      await hostCore.postPath("/clear_lrpt_decode");
       resetSatHistoryView();
     } catch (e) {
       console.error("Weather satellite history clear failed", e);

src/trx-client/trx-frontend/trx-frontend-http/assets/web/generated/scheduler.js

@@ -1,3 +1,7 @@
+import {
+  hostState
+} from "./chunk-KL66PICH.js";
+
 // src/plugins/scheduler.ts
 var schedulerWindow = window;
 var wiredElements = /* @__PURE__ */ new WeakSet();
@@ -6,6 +10,9 @@ function schedulerEl(id) {
   if (!element) throw new Error(`Missing scheduler element #${id}`);
   return element;
 }
+function schedulerOptionalEl(id) {
+  return document.getElementById(id);
+}
 (function() {
   "use strict";
   let schedulerRole = null;
@@ -359,8 +366,8 @@ function schedulerEl(id) {
     renderSatelliteSection();
     if (mode === "grayline" && currentConfig && currentConfig.grayline) {
       const gl = currentConfig.grayline;
-      const lat = gl.lat ?? schedulerWindow.serverLat ?? "";
+      const lat = gl.lat ?? hostState.serverLat ?? "";
-      const lon = gl.lon ?? schedulerWindow.serverLon ?? "";
+      const lon = gl.lon ?? hostState.serverLon ?? "";
       setInputValue("scheduler-gl-lat", lat != null ? lat : "");
       setInputValue("scheduler-gl-lon", lon != null ? lon : "");
       const gridEl = schedulerEl("scheduler-gl-grid");
@@ -373,8 +380,8 @@ function schedulerEl(id) {
       renderBookmarkSelect("scheduler-gl-dusk", gl.dusk_bookmark_id);
       renderBookmarkSelect("scheduler-gl-night", gl.night_bookmark_id);
     } else if (mode === "grayline") {
-      const lat = schedulerWindow.serverLat ?? "";
+      const lat = hostState.serverLat ?? "";
-      const lon = schedulerWindow.serverLon ?? "";
+      const lon = hostState.serverLon ?? "";
       setInputValue("scheduler-gl-lat", lat != null ? lat : "");
       setInputValue("scheduler-gl-lon", lon != null ? lon : "");
       const gridEl2 = schedulerEl("scheduler-gl-grid");
@@ -624,7 +631,7 @@ function schedulerEl(id) {
     return '<line class="sch-timeline-needle" x1="' + x.toFixed(1) + '" y1="2" x2="' + x.toFixed(1) + '" y2="38" /><polygon class="sch-timeline-needle-head" points="' + (x - 3).toFixed(1) + ",2 " + (x + 3).toFixed(1) + ",2 " + x.toFixed(1) + ',6" />';
   }
   function renderTimelineNeedle() {
-    const g = schedulerEl("sch-timeline-needle-g");
+    const g = schedulerOptionalEl("sch-timeline-needle-g");
     if (g) g.innerHTML = timelineNeedleSvg();
   }
   function schInlineEdit(tr, entry, idx) {
@@ -1213,8 +1220,8 @@ function schedulerEl(id) {
     markDirty: markSchedulerDirty
   };
   schedulerWindow.trx.modules.scheduler = schedulerService;
-  if (schedulerWindow.authRole != null) {
+  if (hostState.authRole != null) {
-    initScheduler(schedulerWindow.lastActiveRigId ?? null, schedulerWindow.authRole);
+    initScheduler(hostState.lastActiveRigId, hostState.authRole);
     wireSchedulerEvents();
   }
 })();

src/trx-client/trx-frontend/trx-frontend-http/assets/web/generated/vchan.js

@@ -1,3 +1,8 @@
+import {
+  hostCore,
+  hostState
+} from "./chunk-KL66PICH.js";
+
 // src/plugins/vchan.ts
 var vchanWindow = window;
 var vchanSessionId = null;
@@ -63,7 +68,7 @@ function vchanStartSchedulerReleasePolling() {
 }
 async function vchanToggleSchedulerRelease() {
   if (!vchanSessionId) return;
-  const rigId = vchanRigId || vchanWindow.lastActiveRigId || null;
+  const rigId = vchanRigId || hostState.lastActiveRigId || null;
   try {
     const resp = await fetch("/scheduler-control", {
       method: "PUT",
@@ -161,14 +166,12 @@ function vchanRender() {
   });
   picker.appendChild(addBtn);
   vchanSyncAccentUI();
-  if (vchanWindow.updateDocumentTitle && vchanWindow.activeChannelRds) {
+  hostCore.updateDocumentTitle(hostCore.activeChannelRds());
-    vchanWindow.updateDocumentTitle(vchanWindow.activeChannelRds());
-  }
   vchanRenderSchedulerRelease();
 }
 async function vchanAllocate() {
   if (!vchanSessionId || !vchanRigId) return;
-  const freqHz = typeof vchanWindow.lastFreqHz === "number" && vchanWindow.lastFreqHz > 0 ? vchanWindow.lastFreqHz : 0;
+  const freqHz = typeof hostState.lastFreqHz === "number" && hostState.lastFreqHz > 0 ? hostState.lastFreqHz : 0;
   const modeEl = document.getElementById("mode");
   const mode = modeEl ? modeEl.value || "USB" : "USB";
   try {
@@ -251,11 +254,11 @@ async function vchanSubscribe(channelId) {
 }
 function vchanReconnectAudio() {
   const ch = vchanIsOnVirtual() ? vchanActiveChannel() : null;
-  vchanWindow._audioChannelOverride = ch?.id ?? null;
+  hostState.audioChannelOverride = ch?.id ?? null;
-  if (!vchanWindow.rxActive) return;
+  if (!hostState.rxActive) return;
-  vchanWindow.stopRxAudio?.();
+  hostCore.stopRxAudio();
   setTimeout(() => {
-    vchanWindow.startRxAudio?.();
+    hostCore.startRxAudio();
   }, 300);
 }
 function vchanApplyCapabilities(caps) {
@@ -276,11 +279,7 @@ function vchanUpdateFreqDisplay() {
   if (!ch) return;
   const el = document.getElementById("freq");
   if (!el) return;
-  if (vchanWindow.formatFreqForStep && typeof vchanWindow.jogUnit === "number") {
+  el.value = hostCore.formatFreqForStep(ch.freq_hz, hostState.jogUnit);
-    el.value = vchanWindow.formatFreqForStep(ch.freq_hz, vchanWindow.jogUnit);
-  } else {
-    el.value = (ch.freq_hz / 1e6).toFixed(6).replace(/\.?0+$/, "");
-  }
 }
 function vchanSyncModeDisplay() {
   const modeEl = document.getElementById("mode");
@@ -290,21 +289,21 @@ function vchanSyncModeDisplay() {
     if (ch && ch.mode) modeEl.value = ch.mode.toUpperCase();
   }
   const modeUpper = (modeEl.value || "").toUpperCase();
-  if (typeof vchanWindow.lastModeName === "string") {
+  if (typeof hostState.lastModeName === "string") {
-    if (modeUpper === "WFM" && vchanWindow.lastModeName !== "WFM") {
+    if (modeUpper === "WFM" && hostState.lastModeName !== "WFM") {
-      vchanWindow.setJogDivisor?.(10);
+      hostCore.setJogDivisor(10);
-      vchanWindow.resetRdsDisplay?.();
+      hostCore.resetRdsDisplay();
-    } else if (modeUpper !== "WFM" && vchanWindow.lastModeName === "WFM") {
+    } else if (modeUpper !== "WFM" && hostState.lastModeName === "WFM") {
-      vchanWindow.resetRdsDisplay?.();
+      hostCore.resetRdsDisplay();
     }
-    vchanWindow.lastModeName = modeUpper;
+    hostState.lastModeName = modeUpper;
   }
-  vchanWindow.updateWfmControls?.();
+  hostCore.updateWfmControls();
-  vchanWindow.updateSdrSquelchControlVisibility?.();
+  hostCore.updateSdrSquelchControlVisibility();
   if (vchanWindow.refreshRdsUi) {
     vchanWindow.refreshRdsUi();
   } else {
-    vchanWindow.positionRdsPsOverlay?.();
+    hostCore.positionRdsPsOverlay();
   }
 }
 function vchanSyncBwDisplay() {
@@ -314,12 +313,12 @@ function vchanSyncBwDisplay() {
   const bwEl = document.getElementById("spectrum-bw-input");
   if (!bwEl) return;
   let bwHz = ch.bandwidth_hz || 0;
-  if (bwHz === 0 && vchanWindow.mwDefaultsForMode) {
+  if (bwHz === 0) {
-    bwHz = vchanWindow.mwDefaultsForMode(ch.mode)[0] || 0;
+    bwHz = hostCore.mwDefaultsForMode(ch.mode)[0] || 0;
   }
   if (bwHz > 0) {
     bwEl.value = (bwHz / 1e3).toFixed(3).replace(/\.?0+$/, "");
-    vchanWindow.currentBandwidthHz = bwHz;
+    hostState.currentBandwidthHz = bwHz;
   }
 }
 function vchanSyncAccentUI() {
@@ -333,25 +332,20 @@ function vchanSyncAccentUI() {
     vchanSyncModeDisplay();
     vchanSyncBwDisplay();
   } else {
-    origRefreshFreqDisplay?.();
+    hostCore.refreshFreqDisplay();
-  }
-  if (vchanWindow.updateDocumentTitle && vchanWindow.activeChannelRds) {
-    vchanWindow.updateDocumentTitle(vchanWindow.activeChannelRds());
   }
+  hostCore.updateDocumentTitle(hostCore.activeChannelRds());
 }
-var origRefreshFreqDisplay = null;
 function vchanSetChannelFreq(freqHz) {
   if (!vchanRigId || !vchanActiveId) return;
-  if (vchanWindow.lastSpectrumData && vchanWindow.lastSpectrumData.sample_rate > 0) {
+  if (hostState.lastSpectrumData && hostState.lastSpectrumData.sample_rate > 0) {
-    const halfSpan = vchanWindow.lastSpectrumData.sample_rate / 2;
+    const halfSpan = hostState.lastSpectrumData.sample_rate / 2;
-    const center = vchanWindow.lastSpectrumData.center_hz;
+    const center = hostState.lastSpectrumData.center_hz;
     if (Math.abs(freqHz - center) > halfSpan) {
-      if (vchanWindow.showHint) {
+      hostCore.showHint(
-        vchanWindow.showHint(
+        `Out of SDR bandwidth (center ${(center / 1e6).toFixed(3)} MHz ±${(halfSpan / 1e3).toFixed(0)} kHz)`,
-          `Out of SDR bandwidth (center ${(center / 1e6).toFixed(3)} MHz ±${(halfSpan / 1e3).toFixed(0)} kHz)`,
+        3e3
-          3e3
+      );
-        );
-      }
       return;
     }
   }
@@ -413,13 +407,17 @@ async function vchanInterceptBandwidth(bwHz) {
 }
 function vchanInterceptFrequency(freqHz) {
   if (!vchanIsOnVirtual()) return false;
-  const core = vchanWindow.trx?.core;
   const targetHz = Math.round(freqHz);
-  core?.armOptimisticFrequency(targetHz);
+  hostCore.armOptimisticFrequency(targetHz);
-  core?.applyLocalTunedFrequency(targetHz);
+  hostCore.applyLocalTunedFrequency(targetHz);
   vchanSetChannelFreq(freqHz);
   return true;
 }
+function vchanInterceptFreqDisplay() {
+  if (!vchanIsOnVirtual()) return false;
+  vchanUpdateFreqDisplay();
+  return true;
+}
 vchanWindow.trx ??= {};
 vchanWindow.trx.modules ??= {};
 vchanWindow.trx.modules.vchan = {
@@ -437,6 +435,7 @@ vchanWindow.trx.modules.vchan = {
   interceptMode: vchanInterceptMode,
   interceptBandwidth: vchanInterceptBandwidth,
   interceptFrequency: vchanInterceptFrequency,
+  interceptFreqDisplay: vchanInterceptFreqDisplay,
   takeSchedulerControl: vchanTakeSchedulerControl,
   releaseToScheduler: vchanToggleSchedulerRelease
 };
@@ -450,13 +449,3 @@ vchanWindow.trx.modules.vchan = {
   vchanStartSchedulerReleasePolling();
   vchanRenderSchedulerRelease();
 })();
-(function() {
-  origRefreshFreqDisplay = vchanWindow.refreshFreqDisplay ?? null;
-  vchanWindow.refreshFreqDisplay = function() {
-    if (vchanIsOnVirtual()) {
-      vchanUpdateFreqDisplay();
-      return;
-    }
-    origRefreshFreqDisplay?.();
-  };
-})();

src/trx-client/trx-frontend/trx-frontend-http/assets/web/generated/vdes.js

@@ -1,6 +1,10 @@
+import {
+  hostCore
+} from "./chunk-KL66PICH.js";
+
 // src/plugins/vdes.ts
 var vdesWindow = window;
-var escapeVdesHtml = (input) => vdesWindow.escapeMapHtml?.(input) ?? input.replaceAll("&", "&amp;").replaceAll("<", "&lt;").replaceAll(">", "&gt;").replaceAll('"', "&quot;");
+var escapeVdesHtml = (input) => hostCore.escapeMapHtml(input);
 var vdesStatus = document.getElementById("vdes-status");
 var vdesMessagesEl = document.getElementById("vdes-messages");
 var vdesFilterInput = document.getElementById("vdes-filter");
@@ -231,7 +235,7 @@ document.getElementById("settings-clear-vdes-history")?.addEventListener("click"
   void (async () => {
     if (!await vdesWindow.trxUi.confirm({ title: "Clear VDES history?", message: "All stored VDES decodes will be permanently removed.", confirmLabel: "Clear history" })) return;
     try {
-      await vdesWindow.postPath?.("/clear_vdes_decode");
+      await hostCore.postPath("/clear_vdes_decode");
       resetVdesHistoryView();
     } catch (e) {
       console.error("VDES history clear failed", e);

src/trx-client/trx-frontend/trx-frontend-http/assets/web/generated/wefax.js

@@ -1,3 +1,7 @@
+import {
+  hostCore
+} from "./chunk-KL66PICH.js";
+
 // src/plugins/wefax.ts
 var wefaxWindow = window;
 var wefaxDom = {
@@ -299,7 +303,7 @@ if (wefaxDom.toggleBtn) {
         if (wefaxWindow.takeSchedulerControlForDecoderDisable) {
           await wefaxWindow.takeSchedulerControlForDecoderDisable(toggleButton);
         }
-        await wefaxWindow.postPath?.("/toggle_wefax_decode");
+        await hostCore.postPath("/toggle_wefax_decode");
       } catch (e) {
         console.error("WEFAX toggle failed", e);
       }
@@ -310,7 +314,7 @@ if (wefaxDom.clearBtn) {
   wefaxDom.clearBtn.addEventListener("click", () => {
     void (async () => {
       try {
-        await wefaxWindow.postPath?.("/clear_wefax_decode");
+        await hostCore.postPath("/clear_wefax_decode");
         resetWefaxHistoryView();
       } catch (e) {
         console.error("WEFAX clear failed", e);

src/trx-client/trx-frontend/trx-frontend-http/assets/web/generated/wspr.js

@@ -1,3 +1,7 @@
+import {
+  hostCore
+} from "./chunk-KL66PICH.js";
+
 // src/plugins/wspr.ts
 var wsprWindow = window;
 var wsprStatus = document.getElementById("wspr-status");
@@ -229,7 +233,7 @@ wsprDecodeToggleBtn?.addEventListener("click", () => {
   void (async () => {
     try {
       await wsprWindow.takeSchedulerControlForDecoderDisable?.(wsprDecodeToggleBtn);
-      await wsprWindow.postPath?.("/toggle_wspr_decode");
+      await hostCore.postPath("/toggle_wspr_decode");
     } catch (error) {
       console.error("WSPR toggle failed", error);
     }
@@ -239,7 +243,7 @@ document.getElementById("settings-clear-wspr-history")?.addEventListener("click"
   void (async () => {
     if (!await wsprWindow.trxUi.confirm({ title: "Clear WSPR history?", message: "All stored WSPR decodes will be permanently removed.", confirmLabel: "Clear history" })) return;
     try {
-      await wsprWindow.postPath?.("/clear_wspr_decode");
+      await hostCore.postPath("/clear_wspr_decode");
       resetWsprHistoryView();
     } catch (error) {
       console.error("WSPR history clear failed", error);

src/trx-client/trx-frontend/trx-frontend-http/frontend/src/README.md

@@ -42,6 +42,9 @@ source change.
 - `core/` contains dependency-light shared helpers.
 - `features/` contains application behavior grouped by responsibility.
 - `plugins/` contains lazy decoder and high-coupling feature entries.
+- `plugins/host.ts` declares the typed `window.trx` state and services that
+  feature bundles read; feature entries import it rather than reaching for bare
+  `window` properties, which the module graph does not publish.
 - Files under `assets/web/vendor/` are vendored JavaScript and are not part of
   the TypeScript migration.
 

src/trx-client/trx-frontend/trx-frontend-http/frontend/src/app.ts

@@ -203,6 +203,7 @@ interface TrxModules {
     handleSession(data: string): void;
     interceptBandwidth(bandwidthHz: number): Promise<boolean>;
     interceptFrequency(frequencyHz: number): boolean;
+    interceptFreqDisplay(): boolean;
     interceptMode(mode: string): Promise<boolean>;
     isOnVirtual(): boolean;
     takeSchedulerControl(): Promise<void>;
@@ -236,7 +237,10 @@ interface TrxState {
   readonly aisVesselUrlBase: string | null;
   readonly serverRigs: RigListItem[];
   readonly serverActiveRigId: string | null;
-  readonly lastModeName: string;
+  lastModeName: string;
+  readonly jogUnit: number;
+  readonly rxActive: boolean;
+  audioChannelOverride: string | null;
   readonly lastSpectrumData: SpectrumFrame | null;
   readonly lastSpectrumRenderData: SpectrumFrame | null;
   currentBandwidthHz: number;
@@ -1987,6 +1991,9 @@ function refreshWavelengthDisplay(hz: number) {
 }
 
 function refreshFreqDisplay() {
+  // On a virtual channel the field must show that channel's frequency; SSE
+  // rig-state updates would otherwise overwrite it with the primary channel.
+  if (window.trx?.modules.vchan?.interceptFreqDisplay()) return;
   if (lastFreqHz == null || freqDirty) return;
   freqEl.value = formatFreqForStep(lastFreqHz, jogUnit);
   refreshWavelengthDisplay(lastFreqHz);
@@ -4856,7 +4863,10 @@ Object.defineProperties(trxState, {
   aisVesselUrlBase:       { get() { return aisVesselUrlBase;      } },
   serverRigs:             { get() { return serverRigs;            } },
   serverActiveRigId:      { get() { return serverActiveRigId;     } },
-  lastModeName:           { get() { return lastModeName;          } },
+  lastModeName:           { get() { return lastModeName;          }, set(v: string) { lastModeName = v; } },
+  jogUnit:                { get() { return jogUnit;               } },
+  rxActive:               { get() { return rxActive;              } },
+  audioChannelOverride:   { get() { return _audioChannelOverride; }, set(v: string | null) { _audioChannelOverride = v; } },
   lastSpectrumData:       { get() { return lastSpectrumData;      } },
   lastSpectrumRenderData: { get() { return lastSpectrumRenderData; } },
   currentBandwidthHz:     { get() { return currentBandwidthHz;     }, set(v: number) { currentBandwidthHz = v; window.currentBandwidthHz = v; } },
@@ -4875,6 +4885,9 @@ const trxCore = Object.freeze({
   postPath, scheduleUiFrameJob, navigateToTab, rigBadgeColor,
   setRigFrequency, applyLocalTunedFrequency, armOptimisticFrequency,
   syncBandwidthInput, scheduleSpectrumDraw, onDecoderRegistryReady,
+  formatFreqForStep, refreshFreqDisplay, setJogDivisor, mwDefaultsForMode,
+  resetRdsDisplay, positionRdsPsOverlay, updateWfmControls,
+  updateSdrSquelchControlVisibility, startRxAudio, stopRxAudio,
   latLonToMaidenhead, locatorToLatLon, haversineKm, formatDistanceKm,
   formatTimeAgo, bookmarkDistanceText, buildBookmarkTooltipText,
   nearestBookmarkForHz, currentDecodeHistoryRetentionMs,
@@ -5495,8 +5508,9 @@ function extractAudioFrameChannels(frame: AudioData) {
   return out;
 }
 
-// Optional channel_id injected by vchan.js when connecting to a virtual channel.
+// Optional channel_id set by the vchan feature when a virtual channel is
-const _audioChannelOverride: string | null = null;
+// active, so RX audio subscribes to that channel instead of the primary one.
+let _audioChannelOverride: string | null = null;
 
 /** Schedule decoded PCM channels for playback via Web Audio API. */
 function scheduleDecodedAudio(channelData: Float32Array[], frameCount: number, sampleRate: number) {

src/trx-client/trx-frontend/trx-frontend-http/frontend/src/plugins/ais.ts

@@ -2,6 +2,8 @@
 //
 // SPDX-License-Identifier: GPL-2.0-or-later
 
+import { hostCore, hostState } from "./host.js";
+
 export {};
 
 import type { PluginRuntimeWindow } from "./runtime-contract";
@@ -27,22 +29,15 @@ interface AisChannelInfo { label: string; badgeClass: string; freqText: string }
 interface AisBridge {
   getDecodeHistoryRetentionMs?: () => number;
   trxScheduleUiFrameJob?: (key: string, job: () => void) => void;
-  escapeMapHtml?: (input: string) => string;
   buildAisVesselUrl?: (mmsi: number | null | undefined) => string | null;
-  serverLat?: number | null;
-  serverLon?: number | null;
-  haversineKm?: (lat1: number, lon1: number, lat2: number, lon2: number) => number;
   aisMapAddVessel?: (message: AisMessage) => void;
   clearMapMarkersByType?: (type: string) => void;
-  postPath?: (path: string) => Promise<unknown>;
   trxUi: { confirm(options: { title: string; message: string; confirmLabel: string }): Promise<boolean> };
   updateAisBar?: () => void;
   clearAisBar?: () => void;
 }
 const aisWindow = window as unknown as AisBridge;
-const escapeAisHtml = (input: string): string => aisWindow.escapeMapHtml?.(input) ?? input
+const escapeAisHtml = (input: string): string => hostCore.escapeMapHtml(input);
-  .replaceAll("&", "&amp;").replaceAll("<", "&lt;")
-  .replaceAll(">", "&gt;").replaceAll('"', "&quot;");
 
 // --- AIS Decoder Plugin (server-side decode) ---
 const aisStatus = document.getElementById("ais-status");
@@ -176,10 +171,10 @@ function aisRouteText(msg: AisMessage): string {
 }
 
 function aisDistanceText(msg: AisMessage): string {
-  if (aisWindow.serverLat == null || aisWindow.serverLon == null || msg.lat == null || msg.lon == null || !aisWindow.haversineKm) {
+  if (hostState.serverLat == null || hostState.serverLon == null || msg.lat == null || msg.lon == null) {
     return "";
   }
-  const distKm = aisWindow.haversineKm(aisWindow.serverLat, aisWindow.serverLon, msg.lat, msg.lon);
+  const distKm = hostCore.haversineKm(hostState.serverLat, hostState.serverLon, msg.lat, msg.lon);
   if (!Number.isFinite(distKm)) return "";
   if (distKm < 1) return `${Math.round(distKm * 1000)} m from TRX`;
   return `${distKm.toFixed(1)} km from TRX`;
@@ -405,7 +400,7 @@ function pruneAisHistoryView(): void {
 document.getElementById("settings-clear-ais-history")?.addEventListener("click", () => { void (async () => {
   if (!await aisWindow.trxUi.confirm({ title: "Clear AIS history?", message: "All stored AIS messages will be permanently removed.", confirmLabel: "Clear history" })) return;
   try {
-    await aisWindow.postPath?.("/clear_ais_decode");
+    await hostCore.postPath("/clear_ais_decode");
     resetAisHistoryView();
   } catch (e) {
     console.error("AIS history clear failed", e);

src/trx-client/trx-frontend/trx-frontend-http/frontend/src/plugins/aprs.ts

@@ -2,6 +2,8 @@
 //
 // SPDX-License-Identifier: GPL-2.0-or-later
 
+import { hostCore, hostState } from "./host.js";
+
 import {
   aprsAgeText,
   aprsCategoryLabel,
@@ -18,26 +20,18 @@ import type { PluginRuntimeWindow } from "./runtime-contract";
 interface AprsBridge {
   getDecodeHistoryRetentionMs?: () => number;
   trxScheduleUiFrameJob?: (key: string, job: () => void) => void;
-  serverLat?: number | null;
-  serverLon?: number | null;
-  haversineKm?: (lat1: number, lon1: number, lat2: number, lon2: number) => number;
-  escapeMapHtml?: (input: string) => string;
   navigateToAprsMap?: (lat: number, lon: number) => void;
-  showHint?: (message: string, durationMs: number) => void;
   clearMapMarkersByType?: (type: string) => void;
   aprsMapAddStation?: (call: string, lat: number, lon: number, info: string, symbolTable: string | null | undefined, symbolCode: string | null | undefined, packet: AprsPacket) => void;
   getDecodeRigMeta?: () => unknown;
-  postPath?: (path: string) => Promise<unknown>;
   trxUi: { confirm(options: { title: string; message: string; confirmLabel: string }): Promise<boolean> };
   updateAprsBar?: () => void;
   clearAprsBar?: () => void;
   closeAprsBar?: () => void;
 }
 const aprsWindow = window as unknown as AprsBridge;
-const escapeAprsHtml = (input: string): string => aprsWindow.escapeMapHtml?.(input) ?? input
+const escapeAprsHtml = (input: string): string => hostCore.escapeMapHtml(input);
-  .replaceAll("&", "&amp;").replaceAll("<", "&lt;")
+const showAprsHint = (message: string, durationMs: number): void => { hostCore.showHint(message, durationMs); };
-  .replaceAll(">", "&gt;").replaceAll('"', "&quot;");
-const showAprsHint = (message: string, durationMs: number): void => { aprsWindow.showHint?.(message, durationMs); };
 
 // --- APRS Decoder Plugin (server-side decode) ---
 const aprsStatus = document.getElementById("aprs-status");
@@ -87,8 +81,8 @@ function scheduleAprsBarUpdate() {
 }
 
 function aprsDistanceText(pkt: AprsPacket): string {
-  if (aprsWindow.serverLat == null || aprsWindow.serverLon == null || pkt.lat == null || pkt.lon == null || !aprsWindow.haversineKm) return "";
+  if (hostState.serverLat == null || hostState.serverLon == null || pkt.lat == null || pkt.lon == null) return "";
-  const distKm = aprsWindow.haversineKm(aprsWindow.serverLat, aprsWindow.serverLon, pkt.lat, pkt.lon);
+  const distKm = hostCore.haversineKm(hostState.serverLat, hostState.serverLon, pkt.lat, pkt.lon);
   if (!Number.isFinite(distKm)) return "";
   if (distKm < 1) return `${Math.round(distKm * 1000)} m from TRX`;
   return `${distKm.toFixed(1)} km from TRX`;
@@ -354,7 +348,7 @@ function onServerAprsBatch(packets: AprsPacket[]): void {
 document.getElementById("settings-clear-aprs-history")?.addEventListener("click", () => { void (async () => {
   if (!await aprsWindow.trxUi.confirm({ title: "Clear APRS history?", message: "All stored APRS packets will be permanently removed.", confirmLabel: "Clear history" })) return;
   try {
-    await aprsWindow.postPath?.("/clear_aprs_decode");
+    await hostCore.postPath("/clear_aprs_decode");
     resetAprsHistoryView();
   } catch (e) {
     console.error("APRS history clear failed", e);

src/trx-client/trx-frontend/trx-frontend-http/frontend/src/plugins/background-decode.ts

@@ -2,6 +2,8 @@
 //
 // SPDX-License-Identifier: GPL-2.0-or-later
 
+import { hostState } from "./host.js";
+
 export {};
 
 interface DecoderDescriptor {
@@ -38,7 +40,6 @@ interface BackgroundDecodeStatus {
 }
 interface BackgroundBridge {
   decoderRegistry?: DecoderDescriptor[];
-  authEnabled?: boolean;
   trxUi: { confirm(options: { title: string; message: string; confirmLabel: string }): Promise<boolean> };
   trx?: { modules?: { backgroundDecode?: BackgroundDecodeService } };
 }
@@ -170,7 +171,7 @@ const bgdWindow = window as unknown as BackgroundBridge;
     setCheckbox("background-decode-enabled", currentConfig.enabled);
     renderBookmarkChecklist();
 
-    const isControl = backgroundDecodeRole === "control" || bgdWindow.authEnabled === false;
+    const isControl = backgroundDecodeRole === "control" || hostState.authEnabled === false;
     const panel = document.getElementById("background-decode-panel");
     if (panel) {
         panel.querySelectorAll<HTMLInputElement | HTMLSelectElement | HTMLButtonElement>("input, select, button.sch-write").forEach(function (el) {

src/trx-client/trx-frontend/trx-frontend-http/frontend/src/plugins/bookmarks.ts

@@ -2,6 +2,8 @@
 //
 // SPDX-License-Identifier: GPL-2.0-or-later
 
+import { hostCore, hostState } from "./host.js";
+
 export {};
 
 /* DOM IDs in the server-owned page are required by this feature; bmEl throws
@@ -19,14 +21,6 @@ interface Bookmark {
   scope?: string;
 }
 
-interface DecoderDescriptor {
-  id: string;
-  label: string;
-  activation?: string;
-  active_modes?: string[];
-  bookmark_selectable?: boolean;
-}
-
 interface BookmarkService {
   readonly overlayList: readonly Bookmark[];
   readonly overlayRevision: number;
@@ -43,37 +37,8 @@ interface VirtualChannelService {
   takeSchedulerControl(): Promise<void>;
 }
 
-/* Application state read through the `window.trx` host contract.  This plugin
- * is a separate bundle, so it cannot import the application module directly. */
-interface BookmarkHostState {
-  readonly authEnabled: boolean;
-  readonly authRole: string | null;
-  readonly lastActiveRigId: string | null;
-  readonly lastRigIds: string[];
-  readonly lastRigDisplayNames: Record<string, string>;
-  readonly lastFreqHz: number | null;
-  readonly lastModeName: string;
-  readonly lastSpectrumData: unknown;
-  currentBandwidthHz: number;
-  readonly decoderRegistry: readonly DecoderDescriptor[];
-}
-
-interface BookmarkHostCore {
-  postPath(path: string): Promise<unknown>;
-  setRigFrequency(frequencyHz: number): void;
-  applyLocalTunedFrequency(frequencyHz: number, forceDisplay?: boolean): void;
-  armOptimisticFrequency(frequencyHz: number): void;
-  syncBandwidthInput(bandwidthHz: number): void;
-  scheduleSpectrumDraw(): void;
-  onDecoderRegistryReady(callback: () => void): void;
-}
-
 interface BookmarkBridge {
-  trx: {
+  trx: { modules: { bookmarks?: BookmarkService; vchan?: VirtualChannelService } };
-    state: BookmarkHostState;
-    core: BookmarkHostCore;
-    modules: { bookmarks?: BookmarkService; vchan?: VirtualChannelService };
-  };
   trxUi: {
     confirm(options: { title: string; message: string; confirmLabel: string; danger?: boolean }): Promise<boolean>;
     notify?(message: string, options: { kind: "error" }): void;
@@ -83,8 +48,6 @@ interface BookmarkBridge {
 
 type BookmarkElement = HTMLElement & HTMLInputElement & HTMLSelectElement;
 const bridge = window as unknown as BookmarkBridge;
-const trxState = bridge.trx.state;
-const trxCore = bridge.trx.core;
 function bmEl(id: string): BookmarkElement {
   const element = document.getElementById(id);
   if (!element) throw new Error(`Missing bookmark element #${id}`);
@@ -137,7 +100,7 @@ function bmEsc(str: unknown): string {
 }
 
 function bmCanControl() {
-  return !trxState.authEnabled || trxState.authRole === "control";
+  return !hostState.authEnabled || hostState.authRole === "control";
 }
 
 // Show/hide the Add Bookmark / Select All buttons based on the current auth role.
@@ -151,7 +114,7 @@ function bmSyncAccess() {
 
 /** The listing scope: always the active rig (to merge general + rig bookmarks). */
 function bmListScope() {
-  return trxState.lastActiveRigId || "general";
+  return hostState.lastActiveRigId || "general";
 }
 
 async function bmFetchOverlay() {
@@ -168,7 +131,7 @@ async function bmFetchOverlay() {
   if (typeof bridge.syncBookmarkMapLocators === "function") {
     bridge.syncBookmarkMapLocators(bmOverlayList);
   }
-  trxCore.scheduleSpectrumDraw();
+  hostCore.scheduleSpectrumDraw();
 }
 
 async function bmFetch(categoryFilter: string): Promise<void> {
@@ -324,7 +287,7 @@ function bmChangePage(delta: number): void {
 
 // Read decoder checkboxes and return an array of selected decoder names.
 function bmReadDecoders(): string[] {
-  return trxState.decoderRegistry
+  return hostState.decoderRegistry
     .filter(d => d.bookmark_selectable)
     .filter(d => bmOptionalEl("bm-dec-" + d.id)?.checked)
     .map(d => d.id);
@@ -333,7 +296,7 @@ function bmReadDecoders(): string[] {
 // Set decoder checkboxes to match the given array.
 function bmWriteDecoders(decoders: readonly string[]): void {
   const set = new Set(decoders || []);
-  trxState.decoderRegistry
+  hostState.decoderRegistry
     .filter(d => d.bookmark_selectable)
     .forEach(d => {
       const el = bmOptionalEl("bm-dec-" + d.id);
@@ -346,7 +309,7 @@ function bmBuildDecoderCheckboxes() {
   const container = bmEl("bm-decoder-checkboxes");
   if (!container) return;
   container.innerHTML = "";
-  trxState.decoderRegistry
+  hostState.decoderRegistry
     .filter(d => d.bookmark_selectable)
     .forEach(d => {
       const label = document.createElement("label");
@@ -387,18 +350,18 @@ function bmCloseForm() {
 
 function bmPrefillFromStatus() {
   // Read live rig state from the host contract (updated by the SSE stream).
-  const freqHz = trxState.lastFreqHz;
+  const freqHz = hostState.lastFreqHz;
   if (freqHz != null && Number.isFinite(freqHz)) {
     bmEl("bm-freq").value = String(Math.round(freqHz));
   }
-  if (trxState.lastModeName) {
+  if (hostState.lastModeName) {
-    bmEl("bm-mode").value = trxState.lastModeName;
+    bmEl("bm-mode").value = hostState.lastModeName;
   }
-  if (trxState.currentBandwidthHz > 0) {
+  if (hostState.currentBandwidthHz > 0) {
-    bmEl("bm-bw").value = String(Math.round(trxState.currentBandwidthHz));
+    bmEl("bm-bw").value = String(Math.round(hostState.currentBandwidthHz));
   }
   // Prefill decoder checkboxes from current toggle button state.
-  const activeDecoders = trxState.decoderRegistry
+  const activeDecoders = hostState.decoderRegistry
     .filter(d => d.bookmark_selectable && d.activation === "toggle")
     .filter(d => bmOptionalEl(d.id + "-decode-toggle-btn")?.dataset.enabled === "true")
     .map(d => d.id);
@@ -495,15 +458,15 @@ function bmApply(bm: Bookmark): void {
       modeEl.value = (bm.mode || "").toUpperCase();
     }
     if (bm.bandwidth_hz) {
-      trxState.currentBandwidthHz = bm.bandwidth_hz;
+      hostState.currentBandwidthHz = bm.bandwidth_hz;
-      trxCore.syncBandwidthInput(bm.bandwidth_hz);
+      hostCore.syncBandwidthInput(bm.bandwidth_hz);
     }
     // Set optimistic guard before applying so SSE cannot snap back.
-    trxCore.armOptimisticFrequency(bm.freq_hz);
+    hostCore.armOptimisticFrequency(bm.freq_hz);
     // Force display so the BW overlay is repositioned even when freq is unchanged.
-    trxCore.applyLocalTunedFrequency(bm.freq_hz, true);
+    hostCore.applyLocalTunedFrequency(bm.freq_hz, true);
-    if (trxState.lastSpectrumData) {
+    if (hostState.lastSpectrumData) {
-      trxCore.scheduleSpectrumDraw();
+      hostCore.scheduleSpectrumDraw();
     }
 
     // Take scheduler control up front, then apply mode before bandwidth so a
@@ -513,21 +476,21 @@ function bmApply(bm: Bookmark): void {
 
       const onVirtual = await bridge.trx.modules.vchan?.interceptMode(bm.mode) ?? false;
       if (!onVirtual) {
-        await trxCore.postPath("/set_mode?mode=" + encodeURIComponent(bm.mode));
+        await hostCore.postPath("/set_mode?mode=" + encodeURIComponent(bm.mode));
       }
 
       if (bm.bandwidth_hz) {
         const bwHandledByVchan =
           await bridge.trx.modules.vchan?.interceptBandwidth(bm.bandwidth_hz) ?? false;
         if (!bwHandledByVchan) {
-          await trxCore.postPath(`/set_bandwidth?hz=${bm.bandwidth_hz}`);
+          await hostCore.postPath(`/set_bandwidth?hz=${bm.bandwidth_hz}`);
         }
       }
 
       // setRigFrequency redirects to the channel API when a virtual channel is
       // active.  It repeats the optimistic update applied above, which is a
       // no-op because the value is unchanged.
-      trxCore.setRigFrequency(bm.freq_hz);
+      hostCore.setRigFrequency(bm.freq_hz);
     })();
     // Decoder toggles — fire-and-forget.
     //  - Decoders incompatible with the new mode are always turned off
@@ -537,12 +500,12 @@ function bmApply(bm: Bookmark): void {
     //    alone.
     const hasDecoders = Array.isArray(bm.decoders) && bm.decoders.length > 0;
     const modeUp = (bm.mode || "").toUpperCase();
-    const allToggleDecoders = trxState.decoderRegistry.filter(d =>
+    const allToggleDecoders = hostState.decoderRegistry.filter(d =>
       d.activation === "toggle"
     );
     const decoderPromise = allToggleDecoders.length ? (async () => {
       let statusUrl = "/status";
-      const rigId = trxState.lastActiveRigId;
+      const rigId = hostState.lastActiveRigId;
       if (rigId) {
         statusUrl += "?remote=" + encodeURIComponent(rigId);
       }
@@ -566,7 +529,7 @@ function bmApply(bm: Bookmark): void {
           wanted = currentlyOn;
         }
         if (wanted !== currentlyOn) {
-          toggles.push(trxCore.postPath("/toggle_" + d.id.replace(/-/g, "_") + "_decode"));
+          toggles.push(hostCore.postPath("/toggle_" + d.id.replace(/-/g, "_") + "_decode"));
         }
       }
       if (toggles.length) await Promise.all(toggles);
@@ -616,8 +579,8 @@ function bmUpdateSelectionUi() {
 function bmPopulateMoveTarget() {
   const sel = bmEl("bm-move-target");
   if (!sel) return;
-  const rigIds = trxState.lastRigIds;
+  const rigIds = hostState.lastRigIds;
-  const displayNames = trxState.lastRigDisplayNames;
+  const displayNames = hostState.lastRigDisplayNames;
   const prev = sel.value;
   sel.innerHTML = "";
   if (bmScope !== "general") {
@@ -725,8 +688,8 @@ async function bmDeleteSelected() {
 function bmPopulateScopePicker() {
   const picker = bmEl("bm-scope-picker");
   if (!picker) return;
-  const rigIds = trxState.lastRigIds;
+  const rigIds = hostState.lastRigIds;
-  const displayNames = trxState.lastRigDisplayNames;
+  const displayNames = hostState.lastRigDisplayNames;
   // Preserve current selection if still valid.
   const prev = picker.value;
   while (picker.options.length > 1) picker.remove(1);
@@ -753,7 +716,7 @@ function bmPopulateScopePicker() {
   // Build decoder checkboxes from registry.  The registry is fetched async
   // so we rebuild once it arrives to ensure checkboxes are present.
   bmBuildDecoderCheckboxes();
-  trxCore.onDecoderRegistryReady(bmBuildDecoderCheckboxes);
+  hostCore.onDecoderRegistryReady(bmBuildDecoderCheckboxes);
 
   // Scope picker
   bmPopulateScopePicker();

src/trx-client/trx-frontend/trx-frontend-http/frontend/src/plugins/cw.ts

@@ -2,6 +2,8 @@
 //
 // SPDX-License-Identifier: GPL-2.0-or-later
 
+import { hostCore } from "./host.js";
+
 import type { PluginRuntimeWindow } from "./runtime-contract.js";
 
 export {};
@@ -30,8 +32,6 @@ interface CwBridge {
   lastFreqHz?: number;
   currentBandwidthHz?: number;
   lastSpectrumData?: CwSpectrum;
-  escapeMapHtml?: (input: string) => string;
-  postPath?: (path: string) => Promise<unknown>;
   trxUi: { confirm(options: { title: string; message: string; confirmLabel: string }): Promise<boolean> };
   applyCwAutoUi?: (enabled: boolean) => void;
   applyCwAutoUiFromServer?: (enabled: boolean) => void;
@@ -75,9 +75,7 @@ let cwBarDismissedAtMs = 0;
 let cwAutoLocalOverride: boolean | null = null;
 
 function escapeCwHtml(input: string): string {
-  return cwWindow.escapeMapHtml?.(input) ?? input
+  return hostCore.escapeMapHtml(input);
-    .replaceAll("&", "&amp;").replaceAll("<", "&lt;")
-    .replaceAll(">", "&gt;").replaceAll('"', "&quot;");
 }
 
 function applyCwAutoUi(enabled: boolean): void {
@@ -344,7 +342,7 @@ async function setCwTone(tone: unknown, { syncInput = true }: { syncInput?: bool
     cwToneInput.value = String(clamped);
   }
   try {
-    await cwWindow.postPath?.(`/set_cw_tone?tone_hz=${encodeURIComponent(clamped)}`);
+    await hostCore.postPath(`/set_cw_tone?tone_hz=${encodeURIComponent(clamped)}`);
   } catch (e) {
     console.error("CW tone set failed", e);
   }
@@ -358,7 +356,7 @@ if (cwAutoInput) {
       cwAutoLocalOverride = enabled;
       applyCwAutoUi(enabled);
       try {
-        await cwWindow.postPath?.(`/set_cw_auto?enabled=${enabled ? "true" : "false"}`);
+        await hostCore.postPath(`/set_cw_auto?enabled=${enabled ? "true" : "false"}`);
         drawCwTonePicker();
       } catch (error: unknown) {
         console.error("CW auto toggle failed", error);
@@ -375,7 +373,7 @@ if (cwWpmInput) {
       if (cwAutoInput?.checked) return;
       const wpm = clampCwWpm(cwWpmInput.value);
       cwWpmInput.value = String(wpm);
-      try { await cwWindow.postPath?.(`/set_cw_wpm?wpm=${encodeURIComponent(wpm)}`); }
+      try { await hostCore.postPath(`/set_cw_wpm?wpm=${encodeURIComponent(wpm)}`); }
       catch (error: unknown) { console.error("CW WPM set failed", error); }
     })();
   });
@@ -413,7 +411,7 @@ document.getElementById("settings-clear-cw-history")?.addEventListener("click",
   void (async () => {
     if (!await cwWindow.trxUi.confirm({ title: "Clear CW history?", message: "All stored CW decodes will be permanently removed.", confirmLabel: "Clear history" })) return;
     try {
-      await cwWindow.postPath?.("/clear_cw_decode");
+      await hostCore.postPath("/clear_cw_decode");
       resetCwHistoryView();
     } catch (error: unknown) {
       console.error("CW history clear failed", error);

src/trx-client/trx-frontend/trx-frontend-http/frontend/src/plugins/ftx-family.ts

@@ -2,6 +2,8 @@
 //
 // SPDX-License-Identifier: GPL-2.0-or-later
 
+import { hostCore } from "./host.js";
+
 import type { PluginRuntimeWindow } from "./runtime-contract.js";
 
 export type FtxDecoderId = "ft2" | "ft4" | "ft8";
@@ -45,8 +47,6 @@ interface FtxBridge {
   updateFt8Bar?: () => void;
   registerFt8FamilyBarRenderer?: (decoder: FtxDecoderId, renderer: () => BarFrames) => void;
   takeSchedulerControlForDecoderDisable?: (button: HTMLElement) => Promise<void>;
-  postPath?: (path: string) => Promise<unknown>;
-  fmtTime?: (timestampMs: number) => string;
   trxUi: ConfirmApi;
   clearFt8Bar?: () => void;
   closeFt8Bar?: () => void;
@@ -62,6 +62,14 @@ interface FtxConfig {
 
 const bridge = window as unknown as FtxBridge & PluginRuntimeWindow;
 
+// Legacy ft8.js owned this formatter locally; the shared module kept reading it
+// off `window`, where nothing published it, so bar timestamps rendered empty.
+function formatBarTime(timestampMs: number): string {
+  if (!timestampMs) return "--:--:--";
+  return new Date(timestampMs)
+    .toLocaleTimeString([], { hour: "2-digit", minute: "2-digit", second: "2-digit" });
+}
+
 function finiteNumber(value: unknown): number | null {
   const number = typeof value === "number" ? value : Number(value);
   return Number.isFinite(number) ? number : null;
@@ -274,7 +282,7 @@ export function initializeFtxDecoder(config: FtxConfig): void {
     let html = "";
     for (const message of recent) {
       const timestamp = finiteNumber(message._tsMs ?? message.ts_ms);
-      const time = timestamp === null ? "" : `<span class="aprs-bar-time">${bridge.fmtTime?.(timestamp) ?? ""}</span>`;
+      const time = timestamp === null ? "" : `<span class="aprs-bar-time">${formatBarTime(timestamp)}</span>`;
       const snr = finiteNumber(message.snr_db);
       const delta = finiteNumber(message.dt_s);
       const frequency = displayFrequency(message.freq_hz);
@@ -309,12 +317,12 @@ export function initializeFtxDecoder(config: FtxConfig): void {
   toggle?.addEventListener("click", () => { void (async () => {
     try {
       await bridge.takeSchedulerControlForDecoderDisable?.(toggle);
-      await bridge.postPath?.(`/toggle_${id}_decode`);
+      await hostCore.postPath(`/toggle_${id}_decode`);
     } catch (error: unknown) { console.error(`${label} toggle failed`, error); }
   })(); });
   document.getElementById(`settings-clear-${id}-history`)?.addEventListener("click", () => { void (async () => {
     if (!await bridge.trxUi.confirm({ title: `Clear ${label} history?`, message: `All stored ${label} decodes will be permanently removed.`, confirmLabel: "Clear history" })) return;
-    try { await bridge.postPath?.(`/clear_${id}_decode`); reset(); }
+    try { await hostCore.postPath(`/clear_${id}_decode`); reset(); }
     catch (error: unknown) { console.error(`${label} history clear failed`, error); }
   })(); });
 }

src/trx-client/trx-frontend/trx-frontend-http/frontend/src/plugins/hf-aprs.ts

@@ -2,6 +2,8 @@
 //
 // SPDX-License-Identifier: GPL-2.0-or-later
 
+import { hostCore, hostState } from "./host.js";
+
 import {
   aprsAgeText,
   aprsCategoryLabel,
@@ -19,21 +21,13 @@ import type { PluginRuntimeWindow } from "./runtime-contract";
 interface HfAprsBridge {
   getDecodeHistoryRetentionMs?: () => number;
   trxScheduleUiFrameJob?: (key: string, job: () => void) => void;
-  serverLat?: number | null;
-  serverLon?: number | null;
-  haversineKm?: (lat1: number, lon1: number, lat2: number, lon2: number) => number;
-  escapeMapHtml?: (input: string) => string;
   navigateToAprsMap?: (lat: number, lon: number) => void;
-  showHint?: (message: string, durationMs: number) => void;
   getDecodeRigMeta?: () => unknown;
   takeSchedulerControlForDecoderDisable?: (button: HTMLElement) => Promise<unknown>;
-  postPath?: (path: string) => Promise<unknown>;
   trxUi: { confirm(options: { title: string; message: string; confirmLabel: string }): Promise<boolean> };
 }
 const hfAprsWindow = window as unknown as HfAprsBridge;
-const escapeHfAprsHtml = (input: string): string => hfAprsWindow.escapeMapHtml?.(input) ?? input
+const escapeHfAprsHtml = (input: string): string => hostCore.escapeMapHtml(input);
-  .replaceAll("&", "&amp;").replaceAll("<", "&lt;")
-  .replaceAll(">", "&gt;").replaceAll('"', "&quot;");
 
 // --- HF APRS Decoder Plugin (server-side decode, 300 baud) ---
 const hfAprsStatus = document.getElementById("hf-aprs-status");
@@ -72,8 +66,8 @@ function scheduleHfAprsHistoryRender() {
 }
 
 function hfAprsDistanceText(pkt: AprsPacket): string {
-  if (hfAprsWindow.serverLat == null || hfAprsWindow.serverLon == null || pkt.lat == null || pkt.lon == null || !hfAprsWindow.haversineKm) return "";
+  if (hostState.serverLat == null || hostState.serverLon == null || pkt.lat == null || pkt.lon == null) return "";
-  const distKm = hfAprsWindow.haversineKm(hfAprsWindow.serverLat, hfAprsWindow.serverLon, pkt.lat, pkt.lon);
+  const distKm = hostCore.haversineKm(hostState.serverLat, hostState.serverLon, pkt.lat, pkt.lon);
   if (!Number.isFinite(distKm)) return "";
   if (distKm < 1) return `${Math.round(distKm * 1000)} m from TRX`;
   return `${distKm.toFixed(1)} km from TRX`;
@@ -214,10 +208,10 @@ function renderHfAprsRow(pkt: AprsPacket, isFresh: boolean): HTMLElement {
         const clipboard = Reflect.get(navigator, "clipboard") as Clipboard | undefined;
         if (clipboard) {
           await clipboard.writeText(raw);
-          hfAprsWindow.showHint?.("Coordinates copied", 1200);
+          hostCore.showHint("Coordinates copied", 1200);
         }
       } catch {
-        hfAprsWindow.showHint?.("Copy failed", 1500);
+        hostCore.showHint("Copy failed", 1500);
       }
     })(); });
   }
@@ -289,7 +283,7 @@ const hfAprsDecodeToggleBtn = document.getElementById("hf-aprs-decode-toggle-btn
 hfAprsDecodeToggleBtn?.addEventListener("click", () => { void (async () => {
   try {
     await hfAprsWindow.takeSchedulerControlForDecoderDisable?.(hfAprsDecodeToggleBtn);
-    await hfAprsWindow.postPath?.("/toggle_hf_aprs_decode");
+    await hostCore.postPath("/toggle_hf_aprs_decode");
   } catch (e) {
     console.error("HF APRS toggle failed", e);
   }
@@ -298,7 +292,7 @@ hfAprsDecodeToggleBtn?.addEventListener("click", () => { void (async () => {
 document.getElementById("settings-clear-hf-aprs-history")?.addEventListener("click", () => { void (async () => {
   if (!await hfAprsWindow.trxUi.confirm({ title: "Clear HF APRS history?", message: "All stored HF APRS packets will be permanently removed.", confirmLabel: "Clear history" })) return;
   try {
-    await hfAprsWindow.postPath?.("/clear_hf_aprs_decode");
+    await hostCore.postPath("/clear_hf_aprs_decode");
     resetHfAprsHistoryView();
   } catch (e) {
     console.error("HF APRS history clear failed", e);

src/trx-client/trx-frontend/trx-frontend-http/frontend/src/plugins/host.ts

@@ -0,0 +1,72 @@
+// SPDX-FileCopyrightText: 2026 Stan Grams <sjg@haxx.space>
+//
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+// Typed view of the `window.trx` host contract for lazy feature bundles.
+//
+// Feature entries are separate esbuild bundles, so they cannot share module
+// instances with the application entry and must reach application state and
+// services through the host namespace documented in
+// `docs/frontend-architecture.md`.  Declaring that contract once here keeps the
+// feature bundles from re-deriving it — and from drifting back to bare `window`
+// properties, which the module graph no longer publishes.
+
+export interface HostDecoderDescriptor {
+  id: string;
+  label: string;
+  activation?: string;
+  active_modes?: string[];
+  bookmark_selectable?: boolean;
+}
+
+export interface HostState {
+  readonly serverLat: number | null;
+  readonly serverLon: number | null;
+  readonly authEnabled: boolean;
+  readonly authRole: string | null;
+  readonly lastActiveRigId: string | null;
+  readonly lastRigIds: string[];
+  readonly lastRigDisplayNames: Record<string, string>;
+  readonly lastFreqHz: number | null;
+  readonly lastSpectrumData: { sample_rate: number; center_hz: number } | null;
+  readonly jogUnit: number;
+  readonly rxActive: boolean;
+  readonly decoderRegistry: readonly HostDecoderDescriptor[];
+  lastModeName: string;
+  currentBandwidthHz: number;
+  audioChannelOverride: string | null;
+}
+
+export interface HostCore {
+  postPath(path: string): Promise<unknown>;
+  applyLocalTunedFrequency(frequencyHz: number, forceDisplay?: boolean): void;
+  armOptimisticFrequency(frequencyHz: number): void;
+  escapeMapHtml(value: string): string;
+  haversineKm(lat1: number, lon1: number, lat2: number, lon2: number): number;
+  showHint(message: string, durationMs?: number): void;
+  formatFreqForStep(frequencyHz: number, stepHz: number): string;
+  refreshFreqDisplay(): void;
+  setJogDivisor(divisor: number): void;
+  mwDefaultsForMode(mode: string): [number, number, number, number];
+  resetRdsDisplay(): void;
+  positionRdsPsOverlay(): void;
+  updateWfmControls(): void;
+  updateSdrSquelchControlVisibility(): void;
+  updateDocumentTitle(rds: unknown): void;
+  activeChannelRds(): unknown;
+  startRxAudio(): void;
+  stopRxAudio(): void;
+  setRigFrequency(frequencyHz: number): void;
+  syncBandwidthInput(bandwidthHz: number): void;
+  scheduleSpectrumDraw(): void;
+  onDecoderRegistryReady(callback: () => void): void;
+}
+
+interface HostWindow {
+  trx: { state: HostState; core: HostCore };
+}
+
+const host = window as unknown as HostWindow;
+
+export const hostState: HostState = host.trx.state;
+export const hostCore: HostCore = host.trx.core;

src/trx-client/trx-frontend/trx-frontend-http/frontend/src/plugins/sat.ts

@@ -2,6 +2,8 @@
 //
 // SPDX-License-Identifier: GPL-2.0-or-later
 
+import { hostCore } from "./host.js";
+
 import type { LrptProgress, SatelliteImage, SatelliteLiveUpdate, SatellitePass, SatellitePassResponse } from "./satellite-types";
 import type { PluginRuntimeWindow } from "./runtime-contract.js";
 
@@ -13,7 +15,6 @@ interface SatelliteBridge {
   addSatMapOverlay?: (image: SatelliteImage) => void;
   clearSatMapOverlays?: () => void;
   takeSchedulerControlForDecoderDisable?: (button: HTMLElement) => Promise<unknown>;
-  postPath?: (path: string) => Promise<unknown>;
   trxUi: { confirm(options: { title: string; message: string; confirmLabel: string }): Promise<boolean> };
   satShowOnMap?: (south: number, west: number, north: number, east: number) => void;
   enableMapSourceFilter?: (source: string) => void;
@@ -305,7 +306,7 @@ const lrptDecodeToggleBtn = document.getElementById("lrpt-decode-toggle-btn");
 lrptDecodeToggleBtn?.addEventListener("click", () => { void (async () => {
   try {
     await satWindow.takeSchedulerControlForDecoderDisable?.(lrptDecodeToggleBtn);
-    await satWindow.postPath?.("/toggle_lrpt_decode");
+    await hostCore.postPath("/toggle_lrpt_decode");
   } catch (e) {
     console.error("LRPT toggle failed", e);
   }
@@ -327,7 +328,7 @@ document
   ?.addEventListener("click", () => { void (async () => {
   if (!await satWindow.trxUi.confirm({ title: "Clear satellite history?", message: "All stored satellite decodes will be permanently removed.", confirmLabel: "Clear history" })) return;
     try {
-      await satWindow.postPath?.("/clear_lrpt_decode");
+      await hostCore.postPath("/clear_lrpt_decode");
       resetSatHistoryView();
     } catch (e) {
       console.error("Weather satellite history clear failed", e);

src/trx-client/trx-frontend/trx-frontend-http/frontend/src/plugins/scheduler-types.ts

@@ -80,9 +80,5 @@ export interface SchedulerWindow {
     confirm(options: { title: string; message: string; confirmLabel: string; danger?: boolean }): Promise<boolean>;
     notify?(message: string, options: { kind: "error" }): void;
   };
-  authRole?: string | null;
-  lastActiveRigId?: string | null;
-  serverLat?: number | null;
-  serverLon?: number | null;
   satScheduler?: SatelliteSchedulerApi;
 }

src/trx-client/trx-frontend/trx-frontend-http/frontend/src/plugins/scheduler.ts

@@ -2,6 +2,8 @@
 //
 // SPDX-License-Identifier: GPL-2.0-or-later
 
+import { hostState } from "./host.js";
+
 import type {
   ScheduleEntry,
   SchedulerBookmark,
@@ -27,6 +29,12 @@ function schedulerEl(id: string): SchedulerElement {
   return element as SchedulerElement;
 }
 
+/* The timeline needle group is drawn by this feature's own SVG markup, so it is
+ * absent until the timeline has rendered at least once. */
+function schedulerOptionalEl(id: string): SchedulerElement | null {
+  return document.getElementById(id) as SchedulerElement | null;
+}
+
 // Background Decoding Scheduler UI
 
 (function () {
@@ -481,8 +489,8 @@ function schedulerEl(id: string): SchedulerElement {
     if (mode === "grayline" && currentConfig && currentConfig.grayline) {
       const gl = currentConfig.grayline;
       // Prefer saved value; fall back to server coordinates from app.js globals.
-      const lat = gl.lat ?? schedulerWindow.serverLat ?? "";
+      const lat = gl.lat ?? hostState.serverLat ?? "";
-      const lon = gl.lon ?? schedulerWindow.serverLon ?? "";
+      const lon = gl.lon ?? hostState.serverLon ?? "";
       setInputValue("scheduler-gl-lat", lat != null ? lat : "");
       setInputValue("scheduler-gl-lon", lon != null ? lon : "");
       const gridEl = schedulerEl("scheduler-gl-grid");
@@ -496,8 +504,8 @@ function schedulerEl(id: string): SchedulerElement {
       renderBookmarkSelect("scheduler-gl-night", gl.night_bookmark_id);
     } else if (mode === "grayline") {
       // No saved grayline config yet — pre-fill coords from server if available.
-      const lat = schedulerWindow.serverLat ?? "";
+      const lat = hostState.serverLat ?? "";
-      const lon = schedulerWindow.serverLon ?? "";
+      const lon = hostState.serverLon ?? "";
       setInputValue("scheduler-gl-lat", lat != null ? lat : "");
       setInputValue("scheduler-gl-lon", lon != null ? lon : "");
       const gridEl2 = schedulerEl("scheduler-gl-grid");
@@ -821,7 +829,7 @@ function schedulerEl(id: string): SchedulerElement {
   }
 
   function renderTimelineNeedle() {
-    const g = schedulerEl("sch-timeline-needle-g");
+    const g = schedulerOptionalEl("sch-timeline-needle-g");
     if (g) g.innerHTML = timelineNeedleSvg();
   }
 
@@ -1566,8 +1574,8 @@ function schedulerEl(id: string): SchedulerElement {
   // When loaded eagerly, initSettingsUI() in app.js calls initScheduler();
   // when loaded lazily (e.g. settings tab click after boot), the app has
   // already passed that point, so we must self-initialize here.
-  if (schedulerWindow.authRole != null) {
+  if (hostState.authRole != null) {
-    initScheduler(schedulerWindow.lastActiveRigId ?? null, schedulerWindow.authRole);
+    initScheduler(hostState.lastActiveRigId, hostState.authRole);
     wireSchedulerEvents();
   }
 })();

src/trx-client/trx-frontend/trx-frontend-http/frontend/src/plugins/vchan.ts

@@ -2,6 +2,8 @@
 //
 // SPDX-License-Identifier: GPL-2.0-or-later
 
+import { hostCore, hostState } from "./host.js";
+
 export {};
 
 interface VirtualChannel {
@@ -21,40 +23,13 @@ interface SchedulerReleaseState {
   all_released?: boolean;
   current_session_released?: boolean;
 }
-interface SpectrumSnapshot { sample_rate: number; center_hz: number }
+// Callbacks the application publishes as documented transitional window
+// properties; all other application state and services arrive through the
+// typed host contract in ./host.ts.
 interface VirtualChannelBridge {
-  lastActiveRigId?: string | null;
-  lastFreqHz?: number;
-  lastModeName?: string;
-  lastSpectrumData?: SpectrumSnapshot | null;
-  currentBandwidthHz?: number;
-  jogUnit?: number;
-  rxActive?: boolean;
-  _audioChannelOverride?: string | null;
   renderRdsOverlays?: () => void;
-  updateDocumentTitle?: (rds: unknown) => void;
-  activeChannelRds?: () => unknown;
-  stopRxAudio?: () => void;
-  startRxAudio?: () => void;
-  formatFreqForStep?: (frequencyHz: number, jogUnit: number) => string;
-  setJogDivisor?: (divisor: number) => void;
-  resetRdsDisplay?: () => void;
-  updateWfmControls?: () => void;
-  updateSdrSquelchControlVisibility?: () => void;
   refreshRdsUi?: () => void;
-  positionRdsPsOverlay?: () => void;
+  trx?: { modules?: { vchan?: VirtualChannelService } };
-  mwDefaultsForMode?: (mode: string) => [number, ...unknown[]];
-  showHint?: (message: string, durationMs: number) => void;
-  refreshFreqDisplay?: () => void;
-  trx?: {
-    core?: VirtualChannelCoreServices;
-    modules?: { vchan?: VirtualChannelService };
-  };
-}
-
-interface VirtualChannelCoreServices {
-  applyLocalTunedFrequency(frequencyHz: number, forceDisplay?: boolean): void;
-  armOptimisticFrequency(frequencyHz: number): void;
 }
 
 interface VirtualChannelService {
@@ -68,6 +43,7 @@ interface VirtualChannelService {
   interceptMode(mode: string): Promise<boolean>;
   interceptBandwidth(bandwidthHz: number): Promise<boolean>;
   interceptFrequency(frequencyHz: number): boolean;
+  interceptFreqDisplay(): boolean;
   takeSchedulerControl(): Promise<void>;
   releaseToScheduler(): Promise<void>;
 }
@@ -151,7 +127,7 @@ function vchanStartSchedulerReleasePolling() {
 
 async function vchanToggleSchedulerRelease() {
   if (!vchanSessionId) return;
-  const rigId = vchanRigId || vchanWindow.lastActiveRigId || null;
+  const rigId = vchanRigId || hostState.lastActiveRigId || null;
   try {
     const resp = await fetch("/scheduler-control", {
       method: "PUT",
@@ -266,9 +242,7 @@ function vchanRender() {
   picker.appendChild(addBtn);
 
   vchanSyncAccentUI();
-  if (vchanWindow.updateDocumentTitle && vchanWindow.activeChannelRds) {
+  hostCore.updateDocumentTitle(hostCore.activeChannelRds());
-    vchanWindow.updateDocumentTitle(vchanWindow.activeChannelRds());
-  }
   vchanRenderSchedulerRelease();
 }
 
@@ -276,8 +250,8 @@ async function vchanAllocate() {
   if (!vchanSessionId || !vchanRigId) return;
 
   // Use the last known rig frequency and mode as the starting point.
-  const freqHz = (typeof vchanWindow.lastFreqHz === "number" && vchanWindow.lastFreqHz > 0)
+  const freqHz = (typeof hostState.lastFreqHz === "number" && hostState.lastFreqHz > 0)
-    ? vchanWindow.lastFreqHz
+    ? hostState.lastFreqHz
     : 0;
   const modeEl = document.getElementById("mode") as HTMLSelectElement | null;
   const mode = modeEl ? (modeEl.value || "USB") : "USB";
@@ -379,14 +353,14 @@ function vchanReconnectAudio(): void {
   // Always update the override so startRxAudio picks up the right URL,
   // even when audio isn't currently running.
   const ch = vchanIsOnVirtual() ? vchanActiveChannel() : null;
-  vchanWindow._audioChannelOverride = ch?.id ?? null;
+  hostState.audioChannelOverride = ch?.id ?? null;
-  if (!vchanWindow.rxActive) return;
+  if (!hostState.rxActive) return;
-  vchanWindow.stopRxAudio?.();
+  hostCore.stopRxAudio();
   // Delay so the server has time to set up the per-channel encoder.
   // The server-side audio_ws handler also polls for up to 2 s, so this
   // just needs to be long enough for the WS upgrade to reach the server.
   setTimeout(() => {
-    vchanWindow.startRxAudio?.();
+    hostCore.startRxAudio();
   }, 300);
 }
 
@@ -419,11 +393,7 @@ function vchanUpdateFreqDisplay() {
   if (!ch) return;
   const el = document.getElementById("freq") as HTMLInputElement | null;
   if (!el) return;
-  if (vchanWindow.formatFreqForStep && typeof vchanWindow.jogUnit === "number") {
+  el.value = hostCore.formatFreqForStep(ch.freq_hz, hostState.jogUnit);
-    el.value = vchanWindow.formatFreqForStep(ch.freq_hz, vchanWindow.jogUnit);
-  } else {
-    el.value = (ch.freq_hz / 1e6).toFixed(6).replace(/\.?0+$/, "");
-  }
 }
 
 // Sync the mode picker to the active virtual channel's mode.
@@ -437,21 +407,21 @@ function vchanSyncModeDisplay() {
   }
   // When on primary channel, app.js rig-state updates handle the picker.
   const modeUpper = (modeEl.value || "").toUpperCase();
-  if (typeof vchanWindow.lastModeName === "string") {
+  if (typeof hostState.lastModeName === "string") {
-    if (modeUpper === "WFM" && vchanWindow.lastModeName !== "WFM") {
+    if (modeUpper === "WFM" && hostState.lastModeName !== "WFM") {
-      vchanWindow.setJogDivisor?.(10);
+      hostCore.setJogDivisor(10);
-      vchanWindow.resetRdsDisplay?.();
+      hostCore.resetRdsDisplay();
-    } else if (modeUpper !== "WFM" && vchanWindow.lastModeName === "WFM") {
+    } else if (modeUpper !== "WFM" && hostState.lastModeName === "WFM") {
-      vchanWindow.resetRdsDisplay?.();
+      hostCore.resetRdsDisplay();
     }
-    vchanWindow.lastModeName = modeUpper;
+    hostState.lastModeName = modeUpper;
   }
-  vchanWindow.updateWfmControls?.();
+  hostCore.updateWfmControls();
-  vchanWindow.updateSdrSquelchControlVisibility?.();
+  hostCore.updateSdrSquelchControlVisibility();
   if (vchanWindow.refreshRdsUi) {
     vchanWindow.refreshRdsUi();
   } else {
-    vchanWindow.positionRdsPsOverlay?.();
+    hostCore.positionRdsPsOverlay();
   }
 }
 
@@ -464,12 +434,12 @@ function vchanSyncBwDisplay() {
   if (!bwEl) return;
   // bandwidth_hz == 0 means mode-default; derive it from the channel mode.
   let bwHz = ch.bandwidth_hz || 0;
-  if (bwHz === 0 && vchanWindow.mwDefaultsForMode) {
+  if (bwHz === 0) {
-    bwHz = vchanWindow.mwDefaultsForMode(ch.mode)[0] || 0;
+    bwHz = hostCore.mwDefaultsForMode(ch.mode)[0] || 0;
   }
   if (bwHz > 0) {
     bwEl.value = (bwHz / 1000).toFixed(3).replace(/\.?0+$/, "");
-    vchanWindow.currentBandwidthHz = bwHz;
+    hostState.currentBandwidthHz = bwHz;
   }
 }
 
@@ -485,29 +455,22 @@ function vchanSyncAccentUI() {
     vchanSyncModeDisplay();
     vchanSyncBwDisplay();
   } else {
-    origRefreshFreqDisplay?.();
+    hostCore.refreshFreqDisplay();
-  }
-  if (vchanWindow.updateDocumentTitle && vchanWindow.activeChannelRds) {
-    vchanWindow.updateDocumentTitle(vchanWindow.activeChannelRds());
   }
+  hostCore.updateDocumentTitle(hostCore.activeChannelRds());
 }
 
-// Saved reference to the original refreshFreqDisplay from app.js.
-let origRefreshFreqDisplay: (() => void) | null = null;
-
 function vchanSetChannelFreq(freqHz: number): void {
   if (!vchanRigId || !vchanActiveId) return;
   // Validate against current SDR capture window.
-  if (vchanWindow.lastSpectrumData && vchanWindow.lastSpectrumData.sample_rate > 0) {
+  if (hostState.lastSpectrumData && hostState.lastSpectrumData.sample_rate > 0) {
-    const halfSpan = vchanWindow.lastSpectrumData.sample_rate / 2;
+    const halfSpan = hostState.lastSpectrumData.sample_rate / 2;
-    const center = vchanWindow.lastSpectrumData.center_hz;
+    const center = hostState.lastSpectrumData.center_hz;
     if (Math.abs(freqHz - center) > halfSpan) {
-      if (vchanWindow.showHint) {
+      hostCore.showHint(
-        vchanWindow.showHint(
+        `Out of SDR bandwidth (center ${(center / 1e6).toFixed(3)} MHz ±${(halfSpan / 1e3).toFixed(0)} kHz)`,
-          `Out of SDR bandwidth (center ${(center / 1e6).toFixed(3)} MHz ±${(halfSpan / 1e3).toFixed(0)} kHz)`,
+        3000
-          3000
+      );
-        );
-      }
       return;
     }
   }
@@ -581,14 +544,21 @@ async function vchanInterceptBandwidth(bwHz: number): Promise<boolean> {
 // so this applies the optimistic local update and reports the tune as handled.
 function vchanInterceptFrequency(freqHz: number): boolean {
   if (!vchanIsOnVirtual()) return false;
-  const core = vchanWindow.trx?.core;
   const targetHz = Math.round(freqHz);
-  core?.armOptimisticFrequency(targetHz);
+  hostCore.armOptimisticFrequency(targetHz);
-  core?.applyLocalTunedFrequency(targetHz);
+  hostCore.applyLocalTunedFrequency(targetHz);
   vchanSetChannelFreq(freqHz);
   return true;
 }
 
+// Called by the application's refreshFreqDisplay.  While a virtual channel is
+// active the field belongs to that channel, so report the render as handled.
+function vchanInterceptFreqDisplay(): boolean {
+  if (!vchanIsOnVirtual()) return false;
+  vchanUpdateFreqDisplay();
+  return true;
+}
+
 vchanWindow.trx ??= {};
 vchanWindow.trx.modules ??= {};
 vchanWindow.trx.modules.vchan = {
@@ -602,6 +572,7 @@ vchanWindow.trx.modules.vchan = {
   interceptMode: vchanInterceptMode,
   interceptBandwidth: vchanInterceptBandwidth,
   interceptFrequency: vchanInterceptFrequency,
+  interceptFreqDisplay: vchanInterceptFreqDisplay,
   takeSchedulerControl: vchanTakeSchedulerControl,
   releaseToScheduler: vchanToggleSchedulerRelease,
 };
@@ -617,16 +588,3 @@ vchanWindow.trx.modules.vchan = {
   vchanRenderSchedulerRelease();
 })();
 
-// Wrap refreshFreqDisplay so the main freq field stays in sync with the
-// active virtual channel's frequency (SSE rig-state updates would otherwise
-// constantly overwrite it with channel 0's freq).
-(function() {
-  origRefreshFreqDisplay = vchanWindow.refreshFreqDisplay ?? null;
-  vchanWindow.refreshFreqDisplay = function() {
-    if (vchanIsOnVirtual()) {
-      vchanUpdateFreqDisplay();
-      return;
-    }
-    origRefreshFreqDisplay?.();
-  };
-})();

src/trx-client/trx-frontend/trx-frontend-http/frontend/src/plugins/vdes.ts

@@ -2,6 +2,8 @@
 //
 // SPDX-License-Identifier: GPL-2.0-or-later
 
+import { hostCore } from "./host.js";
+
 export {};
 
 import type { PluginRuntimeWindow } from "./runtime-contract";
@@ -38,8 +40,6 @@ interface VdesMessage {
 interface VdesBridge {
   getDecodeHistoryRetentionMs?: () => number;
   trxScheduleUiFrameJob?: (key: string, job: () => void) => void;
-  escapeMapHtml?: (input: string) => string;
-  postPath?: (path: string) => Promise<unknown>;
   trxUi: { confirm(options: { title: string; message: string; confirmLabel: string }): Promise<boolean> };
   vdesMapAddPoint?: (message: VdesMessage) => void;
   updateVdesBar?: () => void;
@@ -47,9 +47,7 @@ interface VdesBridge {
 }
 
 const vdesWindow = window as unknown as VdesBridge;
-const escapeVdesHtml = (input: string): string => vdesWindow.escapeMapHtml?.(input) ?? input
+const escapeVdesHtml = (input: string): string => hostCore.escapeMapHtml(input);
-  .replaceAll("&", "&amp;").replaceAll("<", "&lt;")
-  .replaceAll(">", "&gt;").replaceAll('"', "&quot;");
 
 // --- VDES Decoder Plugin (server-side decode) ---
 const vdesStatus = document.getElementById("vdes-status");
@@ -337,7 +335,7 @@ function onServerVdesBatch(messages: VdesMessage[]): void {
 document.getElementById("settings-clear-vdes-history")?.addEventListener("click", () => { void (async () => {
   if (!await vdesWindow.trxUi.confirm({ title: "Clear VDES history?", message: "All stored VDES decodes will be permanently removed.", confirmLabel: "Clear history" })) return;
   try {
-    await vdesWindow.postPath?.("/clear_vdes_decode");
+    await hostCore.postPath("/clear_vdes_decode");
     resetVdesHistoryView();
   } catch (e) {
     console.error("VDES history clear failed", e);

src/trx-client/trx-frontend/trx-frontend-http/frontend/src/plugins/wefax.ts

@@ -2,6 +2,8 @@
 //
 // SPDX-License-Identifier: GPL-2.0-or-later
 
+import { hostCore } from "./host.js";
+
 import type { PluginRuntimeWindow } from "./runtime-contract.js";
 
 export {};
@@ -29,7 +31,6 @@ interface WefaxProgress {
 interface WefaxBridge {
   getDecodeHistoryRetentionMs?: () => number;
   trxScheduleUiFrameJob?: (key: string, job: () => void) => void;
-  postPath?: (path: string) => Promise<unknown>;
   takeSchedulerControlForDecoderDisable?: (button: HTMLElement) => Promise<unknown>;
   syncWefaxToggle?: (enabled: boolean) => void;
 }
@@ -411,7 +412,7 @@ if (wefaxDom.toggleBtn) {
       if (wefaxWindow.takeSchedulerControlForDecoderDisable) {
         await wefaxWindow.takeSchedulerControlForDecoderDisable(toggleButton);
       }
-      await wefaxWindow.postPath?.('/toggle_wefax_decode');
+      await hostCore.postPath('/toggle_wefax_decode');
     } catch (e) {
       console.error('WEFAX toggle failed', e);
     }
@@ -420,7 +421,7 @@ if (wefaxDom.toggleBtn) {
 if (wefaxDom.clearBtn) {
   wefaxDom.clearBtn.addEventListener('click', () => { void (async () => {
     try {
-      await wefaxWindow.postPath?.('/clear_wefax_decode');
+      await hostCore.postPath('/clear_wefax_decode');
       resetWefaxHistoryView();
     } catch (e) {
       console.error('WEFAX clear failed', e);

src/trx-client/trx-frontend/trx-frontend-http/frontend/src/plugins/wspr.ts

@@ -2,6 +2,8 @@
 //
 // SPDX-License-Identifier: GPL-2.0-or-later
 
+import { hostCore } from "./host.js";
+
 import type { PluginRuntimeWindow } from "./runtime-contract.js";
 
 export {};
@@ -25,7 +27,6 @@ interface WsprBridge {
   navigateToMapLocator?: (grid: string, type: "wspr") => void;
   clearMapMarkersByType?: (type: "wspr") => void;
   takeSchedulerControlForDecoderDisable?: (button: HTMLElement) => Promise<void>;
-  postPath?: (path: string) => Promise<unknown>;
   trxUi: { confirm(options: { title: string; message: string; confirmLabel: string }): Promise<boolean> };
   [key: string]: unknown;
 }
@@ -291,7 +292,7 @@ wsprDecodeToggleBtn?.addEventListener("click", () => {
   void (async () => {
     try {
       await wsprWindow.takeSchedulerControlForDecoderDisable?.(wsprDecodeToggleBtn);
-      await wsprWindow.postPath?.("/toggle_wspr_decode");
+      await hostCore.postPath("/toggle_wspr_decode");
     } catch (error: unknown) {
       console.error("WSPR toggle failed", error);
     }
@@ -302,7 +303,7 @@ document.getElementById("settings-clear-wspr-history")?.addEventListener("click"
   void (async () => {
     if (!await wsprWindow.trxUi.confirm({ title: "Clear WSPR history?", message: "All stored WSPR decodes will be permanently removed.", confirmLabel: "Clear history" })) return;
     try {
-      await wsprWindow.postPath?.("/clear_wspr_decode");
+      await hostCore.postPath("/clear_wspr_decode");
       resetWsprHistoryView();
     } catch (error: unknown) {
       console.error("WSPR history clear failed", error);

src/trx-client/trx-frontend/trx-frontend-http/frontend/tests/ais.test.mjs

@@ -3,14 +3,15 @@
 // SPDX-License-Identifier: GPL-2.0-or-later
 
 import assert from "node:assert/strict";
-import { readFile } from "node:fs/promises";
 import test from "node:test";
 import vm from "node:vm";
 import { bundleEntry } from "./bundle-entry.mjs";
+import { createHost } from "./host-fixture.mjs";
 
 test("AIS entry forwards positioned vessels with normalized metadata", async () => {
   const forwarded = [];
   const window = {
+    ...createHost(),
     trxUi: { confirm: async () => true },
     aisMapAddVessel: (message) => { forwarded.push(message); },
   };
@@ -25,7 +26,7 @@ test("AIS entry forwards positioned vessels with normalized metadata", async ()
     console,
   });
   const runtime = await bundleEntry(new URL("../src/plugin-runtime.ts", import.meta.url));
-  const source = await readFile(new URL("../../assets/web/generated/ais.js", import.meta.url), "utf8");
+  const source = await bundleEntry(new URL("../src/plugins/ais.ts", import.meta.url));
   new vm.Script(runtime).runInContext(context);
   new vm.Script(source).runInContext(context);
 

src/trx-client/trx-frontend/trx-frontend-http/frontend/tests/aprs.test.mjs

@@ -6,10 +6,12 @@ import assert from "node:assert/strict";
 import test from "node:test";
 import vm from "node:vm";
 import { bundleEntry } from "./bundle-entry.mjs";
+import { createHost } from "./host-fixture.mjs";
 
 test("APRS entry normalizes positioned packets without remote symbol assets", async () => {
   const forwarded = [];
   const window = {
+    ...createHost(),
     trxUi: { confirm: async () => true },
     aprsMapAddStation: (...args) => { forwarded.push(args); },
   };
@@ -38,3 +40,49 @@ test("APRS entry normalizes positioned packets without remote symbol assets", as
   assert.equal(forwarded[0][1], 54.5);
   assert.equal(forwarded[0][6].rig_id, null);
 });
+
+// Distance is computed from the receiver position and the great-circle helper,
+// both of which the entry reads through the host contract.  These used to be
+// bare window properties that the module graph stopped publishing, so the
+// distance column rendered empty for every positioned packet.
+test("APRS distance text uses the receiver position from the host contract", async () => {
+  const distanceArgs = [];
+  const host = createHost({
+    state: { serverLat: 54.0, serverLon: 18.0 },
+    core: {
+      haversineKm: (lat1, lon1, lat2, lon2) => {
+        distanceArgs.push([lat1, lon1, lat2, lon2]);
+        return 61.7;
+      },
+    },
+  });
+  const window = { ...host, trxUi: { confirm: async () => true }, aprsMapAddStation: () => {} };
+  const node = () => ({
+    innerHTML: "", textContent: "", className: "", style: {}, dataset: {},
+    appendChild(child) { return child; }, addEventListener() {}, replaceChildren() {},
+    querySelector: () => null, querySelectorAll: () => [], setAttribute() {},
+    classList: { add() {}, toggle() {} },
+  });
+  const context = vm.createContext({
+    window,
+    document: {
+      getElementById: (id) => (id === "aprs-packets" ? node() : null),
+      querySelectorAll: () => [],
+      createElement: node,
+      createDocumentFragment: node,
+    },
+    navigator: {},
+    Date, Number, String, Array, Set, Reflect, console,
+  });
+  const runtime = await bundleEntry(new URL("../src/plugin-runtime.ts", import.meta.url));
+  const source = await bundleEntry(new URL("../src/plugins/aprs.ts", import.meta.url));
+  new vm.Script(runtime).runInContext(context);
+  new vm.Script(source).runInContext(context);
+
+  window.trxPluginRuntime.dispatch("aprs", {
+    src_call: "SP0ABC", dest_call: "APRS", crc_ok: true, lat: 54.5, lon: 18.5,
+    symbol_table: "/", symbol_code: ">",
+  });
+
+  assert.deepEqual(distanceArgs, [[54.0, 18.0, 54.5, 18.5]]);
+});

src/trx-client/trx-frontend/trx-frontend-http/frontend/tests/background-decode.test.mjs

@@ -3,13 +3,15 @@
 // SPDX-License-Identifier: GPL-2.0-or-later
 
 import assert from "node:assert/strict";
-import { readFile } from "node:fs/promises";
 import test from "node:test";
 import vm from "node:vm";
+import { createHost } from "./host-fixture.mjs";
+import { bundleEntry } from "./bundle-entry.mjs";
 
 test("background decode loads configuration for the explicitly selected rig", async () => {
   const requested = [];
   const window = {
+    ...createHost(),
     decoderRegistry: [],
     trxUi: { confirm: async () => true },
   };
@@ -35,7 +37,7 @@ test("background decode loads configuration for the explicitly selected rig", as
     Error,
     console,
   });
-  const source = await readFile(new URL("../../assets/web/generated/background-decode.js", import.meta.url), "utf8");
+  const source = await bundleEntry(new URL("../src/plugins/background-decode.ts", import.meta.url));
   new vm.Script(source).runInContext(context);
 
   window.trx.modules.backgroundDecode.initialize("rig/a", "control");

src/trx-client/trx-frontend/trx-frontend-http/frontend/tests/bookmarks.test.mjs

@@ -3,9 +3,9 @@
 // SPDX-License-Identifier: GPL-2.0-or-later
 
 import assert from "node:assert/strict";
-import { readFile } from "node:fs/promises";
 import test from "node:test";
 import vm from "node:vm";
+import { bundleEntry } from "./bundle-entry.mjs";
 
 class ElementFixture {
   constructor() {
@@ -66,7 +66,7 @@ function documentFixture(element) {
   };
 }
 
-const source = await readFile(new URL("../../assets/web/generated/bookmarks.js", import.meta.url), "utf8");
+const source = await bundleEntry(new URL("../src/plugins/bookmarks.ts", import.meta.url));
 
 test("bookmarks register an explicit typed service for application consumers", async () => {
   const elements = new Map();

src/trx-client/trx-frontend/trx-frontend-http/frontend/tests/cw.test.mjs

@@ -3,10 +3,10 @@
 // SPDX-License-Identifier: GPL-2.0-or-later
 
 import assert from "node:assert/strict";
-import { readFile } from "node:fs/promises";
 import test from "node:test";
 import vm from "node:vm";
 import { bundleEntry } from "./bundle-entry.mjs";
+import { createHost } from "./host-fixture.mjs";
 
 class ElementFixture {
   constructor() { this.children = []; this.textContent = ""; this.style = {}; this.classList = { toggle() {} }; }
@@ -21,7 +21,7 @@ test("CW entry appends server-decoded text and registers lifecycle callbacks", a
   const output = new ElementFixture();
   const status = new ElementFixture();
   const elements = new Map([["cw-output", output], ["cw-status", status]]);
-  const window = { trxUi: { confirm: async () => true }, addEventListener() {} };
+  const window = { ...createHost(), trxUi: { confirm: async () => true }, addEventListener() {} };
   const context = vm.createContext({
     window,
     document: {
@@ -39,7 +39,7 @@ test("CW entry appends server-decoded text and registers lifecycle callbacks", a
     console,
   });
   const runtime = await bundleEntry(new URL("../src/plugin-runtime.ts", import.meta.url));
-  const source = await readFile(new URL("../../assets/web/generated/cw.js", import.meta.url), "utf8");
+  const source = await bundleEntry(new URL("../src/plugins/cw.ts", import.meta.url));
   new vm.Script(runtime).runInContext(context);
   new vm.Script(source).runInContext(context);
 

src/trx-client/trx-frontend/trx-frontend-http/frontend/tests/ftx-family.test.mjs

@@ -6,11 +6,13 @@ import assert from "node:assert/strict";
 import test from "node:test";
 import vm from "node:vm";
 import { bundleEntry } from "./bundle-entry.mjs";
+import { createHost } from "./host-fixture.mjs";
 
 test("FT2 entry normalizes audio offsets and registers typed callbacks", async () => {
   let barRenderer;
   const mapMessages = [];
   const window = {
+    ...createHost(),
     ft8BaseHz: 14_074_000,
     trxUi: { confirm: async () => true },
     ft8ExtractAllGrids: () => ["JO91"],
@@ -46,6 +48,7 @@ test("FT2 entry normalizes audio offsets and registers typed callbacks", async (
 test("FT8 entry installs shared parsing without relying on script globals", async () => {
   const forwarded = [];
   const window = {
+    ...createHost(),
     ft8BaseHz: 7_074_000,
     trxUi: { confirm: async () => true },
     mapAddLocator: (...args) => { forwarded.push(args); },

src/trx-client/trx-frontend/trx-frontend-http/frontend/tests/hf-aprs.test.mjs

@@ -6,9 +6,10 @@ import assert from "node:assert/strict";
 import test from "node:test";
 import vm from "node:vm";
 import { bundleEntry } from "./bundle-entry.mjs";
+import { createHost } from "./host-fixture.mjs";
 
 test("HF APRS entry uses shared typed normalization and local symbols", async () => {
-  const window = { trxUi: { confirm: async () => true } };
+  const window = { ...createHost(), trxUi: { confirm: async () => true } };
   const context = vm.createContext({
     window,
     document: { getElementById: () => null, querySelectorAll: () => [] },

src/trx-client/trx-frontend/trx-frontend-http/frontend/tests/host-fixture.mjs

@@ -0,0 +1,66 @@
+// SPDX-FileCopyrightText: 2026 Stan Grams <sjg@haxx.space>
+//
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+// Mirrors the `window.trx` host contract that app.ts publishes and that
+// src/plugins/host.ts consumes.  Feature bundles read all application state
+// and services through it, so every plugin test needs it on its stub window.
+
+export function createHost({ state = {}, core = {}, modules = {} } = {}) {
+  const calls = [];
+  const record = (name, result) => (...args) => {
+    calls.push({ name, args });
+    return typeof result === "function" ? result(...args) : result;
+  };
+  return {
+    calls,
+    trx: {
+      state: {
+        serverLat: null,
+        serverLon: null,
+        authEnabled: false,
+        authRole: "control",
+        lastActiveRigId: null,
+        lastRigIds: [],
+        lastRigDisplayNames: {},
+        lastFreqHz: null,
+        lastSpectrumData: null,
+        jogUnit: 1000,
+        rxActive: false,
+        decoderRegistry: [],
+        lastModeName: "",
+        currentBandwidthHz: 2400,
+        audioChannelOverride: null,
+        ...state,
+      },
+      core: {
+        postPath: record("postPath", async () => undefined),
+        applyLocalTunedFrequency: record("applyLocalTunedFrequency"),
+        armOptimisticFrequency: record("armOptimisticFrequency"),
+        escapeMapHtml: (value) => String(value)
+          .replaceAll("&", "&amp;").replaceAll("<", "&lt;")
+          .replaceAll(">", "&gt;").replaceAll('"', "&quot;"),
+        haversineKm: record("haversineKm", () => 0),
+        showHint: record("showHint"),
+        formatFreqForStep: (hz) => String(hz),
+        refreshFreqDisplay: record("refreshFreqDisplay"),
+        setJogDivisor: record("setJogDivisor"),
+        mwDefaultsForMode: record("mwDefaultsForMode", () => [0, 0, 0, 0]),
+        resetRdsDisplay: record("resetRdsDisplay"),
+        positionRdsPsOverlay: record("positionRdsPsOverlay"),
+        updateWfmControls: record("updateWfmControls"),
+        updateSdrSquelchControlVisibility: record("updateSdrSquelchControlVisibility"),
+        updateDocumentTitle: record("updateDocumentTitle"),
+        activeChannelRds: record("activeChannelRds", () => null),
+        startRxAudio: record("startRxAudio"),
+        stopRxAudio: record("stopRxAudio"),
+        setRigFrequency: record("setRigFrequency"),
+        syncBandwidthInput: record("syncBandwidthInput"),
+        scheduleSpectrumDraw: record("scheduleSpectrumDraw"),
+        onDecoderRegistryReady: record("onDecoderRegistryReady"),
+        ...core,
+      },
+      modules,
+    },
+  };
+}

src/trx-client/trx-frontend/trx-frontend-http/frontend/tests/sat.test.mjs

@@ -3,14 +3,15 @@
 // SPDX-License-Identifier: GPL-2.0-or-later
 
 import assert from "node:assert/strict";
-import { readFile } from "node:fs/promises";
 import test from "node:test";
 import vm from "node:vm";
 import { bundleEntry } from "./bundle-entry.mjs";
+import { createHost } from "./host-fixture.mjs";
 
 test("satellite entry registers lifecycle callbacks and forwards georeferenced images", async () => {
   const overlays = [];
   const window = {
+    ...createHost(),
     trxUi: { confirm: async () => true },
     addSatMapOverlay: (image) => { overlays.push(image); },
   };
@@ -28,7 +29,7 @@ test("satellite entry registers lifecycle callbacks and forwards georeferenced i
     console,
   });
   const runtime = await bundleEntry(new URL("../src/plugin-runtime.ts", import.meta.url));
-  const source = await readFile(new URL("../../assets/web/generated/sat.js", import.meta.url), "utf8");
+  const source = await bundleEntry(new URL("../src/plugins/sat.ts", import.meta.url));
   new vm.Script(runtime).runInContext(context);
   new vm.Script(source).runInContext(context);
 

src/trx-client/trx-frontend/trx-frontend-http/frontend/tests/scheduler.test.mjs

@@ -3,12 +3,15 @@
 // SPDX-License-Identifier: GPL-2.0-or-later
 
 import assert from "node:assert/strict";
-import { readFile } from "node:fs/promises";
 import test from "node:test";
 import vm from "node:vm";
+import { createHost } from "./host-fixture.mjs";
+import { bundleEntry } from "./bundle-entry.mjs";
 
 test("scheduler registers a typed module service without lifecycle globals", async () => {
-  const window = { trx: { modules: {} }, trxUi: { confirm: async () => true } };
+  // No role known yet: the entry registers its service and waits for the
+  // application to drive initialization.
+  const window = { ...createHost({ state: { authRole: null } }), trxUi: { confirm: async () => true } };
   const context = vm.createContext({
     window,
     document: {
@@ -31,7 +34,7 @@ test("scheduler registers a typed module service without lifecycle globals", asy
     WeakSet,
     console,
   });
-  const source = await readFile(new URL("../../assets/web/generated/scheduler.js", import.meta.url), "utf8");
+  const source = await bundleEntry(new URL("../src/plugins/scheduler.ts", import.meta.url));
   new vm.Script(source).runInContext(context);
 
   const service = window.trx.modules.scheduler;
@@ -41,3 +44,70 @@ test("scheduler registers a typed module service without lifecycle globals", asy
   assert.equal(window.initScheduler, undefined);
   assert.equal(window.schedulerBridge, undefined);
 });
+
+// Lazy-load case: the settings tab is opened after boot, so the application has
+// already passed initSettingsUI() and the entry must initialize itself from the
+// host state.  This read used to come from a bare window property that the
+// module graph stopped publishing, so the scheduler never started.
+test("scheduler self-initializes for the active rig when a role is already known", async () => {
+  class ElementFixture {
+    constructor() {
+      this.value = "";
+      this.textContent = "";
+      this.innerHTML = "";
+      this.style = {};
+      this.dataset = {};
+      this.options = [];
+      this.classList = { add() {}, remove() {}, toggle() {}, contains: () => false };
+      this.children = [];
+    }
+    addEventListener() {}
+    appendChild(child) { this.children.push(child); return child; }
+    remove() {}
+    focus() {}
+    closest() { return null; }
+    querySelector() { return null; }
+    querySelectorAll() { return []; }
+  }
+  const elements = new Map();
+  const fetched = [];
+  const element = (id) => {
+    if (!elements.has(id)) elements.set(id, new ElementFixture());
+    return elements.get(id);
+  };
+  const window = {
+    ...createHost({ state: { authRole: "control", lastActiveRigId: "sdr" } }),
+    trxUi: { confirm: async () => true },
+  };
+  const context = vm.createContext({
+    window,
+    document: {
+      activeElement: null,
+      addEventListener() {},
+      getElementById: element,
+      querySelector: () => new ElementFixture(),
+      querySelectorAll: () => [],
+      createElement: () => new ElementFixture(),
+    },
+    localStorage: { getItem: () => null, setItem() {} },
+    fetch: async (url) => { fetched.push(String(url)); return { ok: true, json: async () => ({}) }; },
+    setInterval: () => 1,
+    clearInterval() {},
+    setTimeout: () => 1,
+    HTMLElement: ElementFixture,
+    Element: ElementFixture,
+    Date,
+    Number,
+    String,
+    Array,
+    Promise,
+    WeakSet,
+    console,
+  });
+  const source = await bundleEntry(new URL("../src/plugins/scheduler.ts", import.meta.url));
+  new vm.Script(source).runInContext(context);
+  await new Promise((resolve) => setImmediate(resolve));
+
+  assert.ok(fetched.some((url) => url.includes("scheduler") && url.includes("sdr")),
+    `expected a scheduler load for the active rig, saw ${JSON.stringify(fetched)}`);
+});

src/trx-client/trx-frontend/trx-frontend-http/frontend/tests/vchan.test.mjs

@@ -3,12 +3,13 @@
 // SPDX-License-Identifier: GPL-2.0-or-later
 
 import assert from "node:assert/strict";
-import { readFile } from "node:fs/promises";
 import test from "node:test";
 import vm from "node:vm";
+import { createHost } from "./host-fixture.mjs";
+import { bundleEntry } from "./bundle-entry.mjs";
 
 test("virtual channels expose typed SSE and interception boundaries", async () => {
-  const window = {};
+  const window = { ...createHost() };
   const context = vm.createContext({
     window,
     document: { getElementById: () => null },
@@ -25,7 +26,7 @@ test("virtual channels expose typed SSE and interception boundaries", async () =
     Error,
     console,
   });
-  const source = await readFile(new URL("../../assets/web/generated/vchan.js", import.meta.url), "utf8");
+  const source = await bundleEntry(new URL("../src/plugins/vchan.ts", import.meta.url));
   new vm.Script(source).runInContext(context);
 
   const service = window.trx.modules.vchan;

src/trx-client/trx-frontend/trx-frontend-http/frontend/tests/vdes.test.mjs

@@ -3,14 +3,15 @@
 // SPDX-License-Identifier: GPL-2.0-or-later
 
 import assert from "node:assert/strict";
-import { readFile } from "node:fs/promises";
 import test from "node:test";
 import vm from "node:vm";
 import { bundleEntry } from "./bundle-entry.mjs";
+import { createHost } from "./host-fixture.mjs";
 
 test("VDES entry normalizes and forwards positioned server messages", async () => {
   const forwarded = [];
   const window = {
+    ...createHost(),
     trxUi: { confirm: async () => true },
     vdesMapAddPoint: (message) => { forwarded.push(message); },
   };
@@ -24,7 +25,7 @@ test("VDES entry normalizes and forwards positioned server messages", async () =
     console,
   });
   const runtime = await bundleEntry(new URL("../src/plugin-runtime.ts", import.meta.url));
-  const source = await readFile(new URL("../../assets/web/generated/vdes.js", import.meta.url), "utf8");
+  const source = await bundleEntry(new URL("../src/plugins/vdes.ts", import.meta.url));
   new vm.Script(runtime).runInContext(context);
   new vm.Script(source).runInContext(context);
 

src/trx-client/trx-frontend/trx-frontend-http/frontend/tests/wefax.test.mjs

@@ -3,14 +3,14 @@
 // SPDX-License-Identifier: GPL-2.0-or-later
 
 import assert from "node:assert/strict";
-import { readFile } from "node:fs/promises";
 import test from "node:test";
 import vm from "node:vm";
 import { bundleEntry } from "./bundle-entry.mjs";
+import { createHost } from "./host-fixture.mjs";
 
 test("WEFAX entry exposes typed lifecycle handlers and renders decoder state", async () => {
   const status = { textContent: "", style: { color: "" } };
-  const window = {};
+  const window = { ...createHost() };
   const context = vm.createContext({
     window,
     document: { getElementById: (id) => id === "wefax-status" ? status : null },
@@ -21,7 +21,7 @@ test("WEFAX entry exposes typed lifecycle handlers and renders decoder state", a
     console,
   });
   const runtime = await bundleEntry(new URL("../src/plugin-runtime.ts", import.meta.url));
-  const source = await readFile(new URL("../../assets/web/generated/wefax.js", import.meta.url), "utf8");
+  const source = await bundleEntry(new URL("../src/plugins/wefax.ts", import.meta.url));
   new vm.Script(runtime).runInContext(context);
   new vm.Script(source).runInContext(context);
 

src/trx-client/trx-frontend/trx-frontend-http/frontend/tests/wspr.test.mjs

@@ -3,14 +3,15 @@
 // SPDX-License-Identifier: GPL-2.0-or-later
 
 import assert from "node:assert/strict";
-import { readFile } from "node:fs/promises";
 import test from "node:test";
 import vm from "node:vm";
 import { bundleEntry } from "./bundle-entry.mjs";
+import { createHost } from "./host-fixture.mjs";
 
 test("WSPR entry forwards decoded locators at their absolute frequency", async () => {
   const forwarded = [];
   const window = {
+    ...createHost(),
     ft8BaseHz: 14_095_600,
     trxUi: { confirm: async () => true },
     mapAddLocator: (...args) => { forwarded.push(args); },
@@ -27,7 +28,7 @@ test("WSPR entry forwards decoded locators at their absolute frequency", async (
     console,
   });
   const runtime = await bundleEntry(new URL("../src/plugin-runtime.ts", import.meta.url));
-  const source = await readFile(new URL("../../assets/web/generated/wspr.js", import.meta.url), "utf8");
+  const source = await bundleEntry(new URL("../src/plugins/wspr.ts", import.meta.url));
   new vm.Script(runtime).runInContext(context);
   new vm.Script(source).runInContext(context);