Add update progress polling overlay and strengthen state flags

pikit-web/assets/main.js

@@ -106,6 +106,7 @@ const busyOverlay = document.getElementById("busyOverlay");
 const busyTitle = document.getElementById("busyTitle");
 const busyText = document.getElementById("busyText");
 const toastContainer = document.getElementById("toastContainer");
+const readyOverlay = document.getElementById("readyOverlay");
 
 const TOAST_POS_KEY = "pikit-toast-pos";
 const TOAST_ANIM_KEY = "pikit-toast-anim";
@@ -398,6 +399,7 @@ async function loadReleaseStatus() {
       auto_check = false,
       progress = null,
     } = data || {};
+    window.__lastReleaseState = data;
     setReleaseChip(data);
     if (releaseCurrent) releaseCurrent.textContent = current_version;
     if (releaseLatest) releaseLatest.textContent = latest_version;
@@ -485,9 +487,10 @@ function wireReleaseControls() {
 
   releaseApplyBtn?.addEventListener("click", async () => {
     try {
+      showBusy("Updating Pi-Kit…", "Applying release. This can take up to a minute.");
       if (releaseProgress) releaseProgress.textContent = "Downloading and installing…";
       await applyRelease();
-      await loadReleaseStatus();
+      pollReleaseStatus();
       showToast("Update started", "success");
     } catch (e) {
       showToast(e.error || "Update failed", "error");
@@ -498,10 +501,11 @@ function wireReleaseControls() {
 
   releaseRollbackBtn?.addEventListener("click", async () => {
     try {
+      showBusy("Rolling back…", "Restoring previous backup.");
       if (releaseProgress) releaseProgress.textContent = "Rolling back…";
       await rollbackRelease();
-      await loadReleaseStatus();
-      showToast("Rollback complete", "success");
+      pollReleaseStatus();
+      showToast("Rollback started", "success");
     } catch (e) {
       showToast(e.error || "Rollback failed", "error");
     } finally {
@@ -520,6 +524,27 @@ function wireReleaseControls() {
   });
 }
 
+function pollReleaseStatus() {
+  let attempts = 0;
+  const maxAttempts = 30; // ~1 min at 2s
+  const tick = async () => {
+    attempts += 1;
+    await loadReleaseStatus();
+    const state = window.__lastReleaseState || {};
+    if (state.status === "in_progress" && attempts < maxAttempts) {
+      setTimeout(tick, 2000);
+    } else {
+      hideBusy();
+      if (state.status === "up_to_date") {
+        showToast("Update complete", "success");
+      } else if (state.status === "error") {
+        showToast(state.message || "Update failed", "error");
+      }
+    }
+  };
+  tick();
+}
+
 function showBusy(title = "Working…", text = "This may take a few seconds.") {
   if (!busyOverlay) return;
   busyTitle.textContent = title;