hub: unified customer page, blocked status, dashboard merge

- Replace separate config detail and report detail pages with unified
  /customers/{id} page showing both config info and live report data
- Add "blocked" status for customers (hidden from dashboard, notifications
  suppressed, still accepts reports)
- Dashboard now shows config-only customers as "PENDING" status
- Customers list: all rows link to /customers/{id}, show BLOCKED badge
- New actions: block/unblock, push config to controller, auto-create
  config from report data
- /configs/{id} now redirects to /customers/{id}
- Add config-badge CSS classes for MANAGED/MANUAL/BLOCKED badges

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

hub/internal/web/templates/dashboard.html

@@ -46,16 +46,16 @@
                     </td>
                     <td>
                         <span class="status-badge status-badge-{{.OverallStatus}}">
-                            {{if eq .OverallStatus "ok"}}OK{{else if eq .OverallStatus "warn"}}WARN{{else if eq .OverallStatus "disabled"}}PAUSED{{else}}DOWN{{end}}
+                            {{if eq .OverallStatus "ok"}}OK{{else if eq .OverallStatus "warn"}}WARN{{else if eq .OverallStatus "disabled"}}PAUSED{{else if eq .OverallStatus "pending"}}PENDING{{else}}DOWN{{end}}
                         </span>
                     </td>
-                    <td>{{timeAgo .ReceivedAt}}</td>
-                    <td>{{formatFloat .CPUPercent}}%</td>
-                    <td>{{formatFloat .MemoryPercent}}%</td>
-                    <td>{{.DiskSummary}}</td>
-                    <td>{{.ContainerRunning}}/{{.ContainerTotal}}</td>
+                    <td>{{if eq .OverallStatus "pending"}}—{{else}}{{timeAgo .ReceivedAt}}{{end}}</td>
+                    <td>{{if eq .OverallStatus "pending"}}—{{else}}{{formatFloat .CPUPercent}}%{{end}}</td>
+                    <td>{{if eq .OverallStatus "pending"}}—{{else}}{{formatFloat .MemoryPercent}}%{{end}}</td>
+                    <td>{{if eq .OverallStatus "pending"}}—{{else}}{{.DiskSummary}}{{end}}</td>
+                    <td>{{if eq .OverallStatus "pending"}}—{{else}}{{.ContainerRunning}}/{{.ContainerTotal}}{{end}}</td>
                     <td>{{.BackupAge}}</td>
-                    <td><code>{{.ControllerVersion}}</code></td>
+                    <td>{{if .ControllerVersion}}<code>{{.ControllerVersion}}</code>{{else}}—{{end}}</td>
                 </tr>
                 {{end}}
             </tbody>