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/routes/apps.py

@@ -129,7 +129,6 @@ def index(request: Request, user=Depends(require_user)):
             <div class="card">
                 <h2>Aplikace</h2>
                 <p class="muted">Vytváření, nasazení, klonování, nastavení prostředků a mazání služeb.</p>
-                <a class="btn" href="/portal/new-app">+ Nová aplikace</a>
             </div>
             <div class="card">
                 <h2>Zálohy</h2>
@@ -145,6 +144,7 @@ def index(request: Request, user=Depends(require_user)):
 
         <div class="card">
             <h2>Nasazené aplikace</h2>
+            <p><a class="btn" href="/portal/new-app">+ Nová aplikace</a></p>
             <table>
                 <tr>
                     <th>Aplikace</th>