feat: Improve notifications with templates, summarization, and more (#317)

* feat: Successfully added new notification settings to Zustand

* feat: Successfully implemented the Events subsection

* feat: Successfully wired new notification settings

* feat: Added notification template editor section to Notifications

* feat: Added server-side template resolution and summarize

* feat: Improve notifications with templates, summarization, and more

* fix: session not populated in messages

* fix notification template first-run defaults

---------

Co-authored-by: Bohdan Triapitsyn <artmore@protonmail.com>

packages/ui/src/hooks/useEventStream.ts

@@ -1465,9 +1465,11 @@ export const useEventStream = () => {
           break;
         }
 
-        // Desktop local instance uses native notifications via sidecar stdout.
-        // Avoid duplicating via UI runtime notifications.
-        if (isDesktopLocalOriginActive()) {
+        // When the sidecar stdout notification channel is active (production desktop builds),
+        // skip this SSE notification to avoid duplicating the native notification already
+        // shown by the Tauri process. In dev mode the stdout channel is not available,
+        // so we fall through and let the UI handle it via Tauri IPC.
+        if (isDesktopLocalOriginActive() && Boolean((props as { desktopStdoutActive?: unknown }).desktopStdoutActive)) {
           break;
         }