Add unified operations realtime dashboard

- add /portal/ws/operations WebSocket snapshot endpoint
- add shared operations-live.js with reconnect and operations:snapshot events
- update Operations, Jobs, and Workers pages to use realtime snapshots
- keep job detail live logs on dedicated /ws/jobs/{job_id}/logs endpoint
- add Jobs and Workers pagination/filtering
- remove old page auto-refresh behavior from jobs/deployments
- normalize main navigation labels
- move New App CTA from menu to Apps page
- add backup download action for admins
- add Workers pages and operations dashboard data helpers

app/templates/layout.py

@@ -12,14 +12,13 @@ def page(title: str, body: str, user=None) -> str:
         display_name = html.escape(user.get("display_name") or user.get("username", ""))
         nav = """
             <nav>
-                <a href="/portal">Aplikace</a>
-                <a href="/portal/new-app">Nová aplikace</a>
-                <a href="/portal/deployments">Nasazení</a>
-                <a href="/portal/jobs">Joby</a>
-                <a href="/portal/operations">Operations -> Dashboard</a>
-                <a href="/portal/workers">Operations -> Workers</a>
-                <a href="/portal/backups">Zálohy</a>
+                <a href="/portal/operations">Dashboard</a>
+                <a href="/portal">Apps</a>
+                <a href="/portal/jobs">Jobs</a>
+                <a href="/portal/deployments">Deployments</a>
+                <a href="/portal/workers">Workers</a>
                 <a href="/portal/audit">Audit</a>
+                <a href="/portal/backups">Backups</a>
             </nav>
         """
         user_panel = f"""