feat(deployments): surface /deploy on the mobile nav + dashboard header

Capture entry-point was hidden in /tools cards.  Field workflow needs
to be one tap from anywhere, especially on mobile.

Mobile bottom nav: swap Devices → Deploy (slot 3).
  Menu / Dashboard / Deploy / Events.
  Devices still in the hamburger Menu drawer.

Desktop dashboard header: new orange "Field Deploy" button next to
"Last updated".  Only renders at md+ breakpoint (mobile already has it
in the bottom nav).

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

templates/base.html

@@ -211,8 +211,10 @@
     </div>
 
     <!-- Bottom Navigation (Mobile Only) — primary field-work shortcuts.
-         Settings + Projects + Job Planner are reachable via the
-         hamburger Menu (slot 1) which opens the full sidebar drawer. -->
+         Deploy is here because the whole point of the workflow is "I'm
+         on site, capture this install in 90s before I leave."  Devices,
+         Settings, Projects, Job Planner reachable via the hamburger
+         Menu (slot 1) which opens the full sidebar drawer. -->
     <nav class="bottom-nav{% if request.query_params.get('embed') == '1' %} hidden{% endif %}">
         <div class="grid grid-cols-4 h-16">
             <button id="hamburgerBtn" class="bottom-nav-btn" onclick="toggleMenu()" aria-label="Menu">
@@ -227,11 +229,12 @@
                 </svg>
                 <span>Dashboard</span>
             </button>
-            <button class="bottom-nav-btn" data-href="/roster" onclick="window.location.href='/roster'">
+            <button class="bottom-nav-btn" data-href="/deploy" onclick="window.location.href='/deploy'">
                 <svg fill="none" stroke="currentColor" viewBox="0 0 24 24">
-                    <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2"></path>
+                    <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M3 9a2 2 0 012-2h.93a2 2 0 001.664-.89l.812-1.22A2 2 0 0110.07 4h3.86a2 2 0 011.664.89l.812 1.22A2 2 0 0018.07 7H19a2 2 0 012 2v9a2 2 0 01-2 2H5a2 2 0 01-2-2V9z"/>
+                    <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M15 13a3 3 0 11-6 0 3 3 0 016 0z"/>
                 </svg>
-                <span>Devices</span>
+                <span>Deploy</span>
             </button>
             <button class="bottom-nav-btn" data-href="/sfm" onclick="window.location.href='/sfm'">
                 <svg fill="none" stroke="currentColor" viewBox="0 0 24 24">