v1.0.49: fix version auto-refresh by polling from the property inspector

The v1.0.47/48 attempt pushed sendProjectsToPI() from the plugin right
after streamDeck.connect() on startup, assuming that would reach an
already-open panel post-update-restart. It doesn't: per the SDK,
sendToPropertyInspector only delivers 'when the property inspector is
visible for an action provided by this plugin', and that visibility
state is tracked per-process via live didAppear/onSendToPlugin events
-- a freshly restarted process has never received one, so the push was
silently dropped. Confirmed in testing: the panel stayed frozen on
'Updating to vX...' indefinitely.

Removed the ineffective push. Instead, the property inspector's
'Check for Updates' handler now schedules a few refreshProjects
requests (1.5s/3.5s/6s/9s after the click) -- the same proven
PI-initiated round trip already used when entering an API token, which
reliably re-populates the panel including the version text once the
new process comes back up.

Also hardened checkForUpdates(): the final 'Updated to vX --
restarting...' status is now awaited with a short delay before
process.exit(0), best-effort only, since the panel no longer depends
on it arriving.

com.pdma.notion-timer.sdPlugin/ui/property-inspector.html

@@ -176,6 +176,21 @@
       el.className = cls || "";
     }
 
+    // The plugin process restarts after an update, and a freshly-restarted
+    // process has no way to push to an already-open panel (Stream Deck only
+    // tells a plugin a panel is visible via a live didAppear/onSendToPlugin
+    // round trip, which a cold-started process hasn't received yet). So the
+    // panel re-requests the version itself a few times after the restart
+    // window, instead of waiting on the plugin to notify it.
+    function pollForVersionRefresh() {
+      var token = document.getElementById("notionToken").value.trim();
+      [1500, 3500, 6000, 9000].forEach(function(delay) {
+        setTimeout(function() {
+          $PI.sendToPlugin({ event: "refreshProjects", token: token });
+        }, delay);
+      });
+    }
+
     // Collapsible credentials section
     document.getElementById("credToggle").addEventListener("click", function() {
       var section = document.getElementById("credSection");
@@ -264,6 +279,7 @@
       document.getElementById("updateBtn").addEventListener("click", function() {
         document.getElementById("updateStatus").textContent = "";
         $PI.sendToPlugin({ event: "checkForUpdates" });
+        pollForVersionRefresh();
       });
     });