feat(ui): add action buttons to Docker, Git, systemd, and Caddy modules

- Docker table: Restart and Stop buttons per container row (docker_compose_restart / docker_compose_stop)
- Git repos list: Fetch and Pull buttons per repo; Pull disabled when working tree is dirty
- systemd units list: Restart button per unit (systemctl_restart)
- Caddy: Edit link on /caddy page, new /caddy/edit page with textarea + 3-step Validate → Save+Reload flow
- All buttons open ConfirmDialog with exact agent-call preview, then stream output via StreamingTerminal
- Add docker_compose_stop to ops-agent/commands.yml.example

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

app/docker/_components/docker-table.tsx

@@ -3,6 +3,9 @@
 import { useCallback, useEffect, useState } from 'react'
 import Link from 'next/link'
 import { type Container, parseDockerPs } from '@/lib/parse-docker'
+import { useFlowRun } from '@/hooks/useFlowRun'
+import ConfirmDialog from '@/components/ConfirmDialog'
+import StreamingTerminal from '@/components/StreamingTerminal'
 
 async function fetchContainers(): Promise<Container[]> {
   const res = await fetch('/api/agent/exec', {
@@ -68,6 +71,13 @@ function statusBadge(status: string) {
   )
 }
 
+type ActionDef = {
+  commandKey: string
+  args: string[]
+  preview: string
+  title: string
+}
+
 type Props = {
   initialContainers: Container[]
   initialError: string | null
@@ -78,6 +88,8 @@ export default function DockerTable({ initialContainers, initialError }: Props)
   const [error, setError] = useState<string | null>(initialError)
   const [refreshing, setRefreshing] = useState(false)
   const [lastUpdated, setLastUpdated] = useState<Date>(new Date())
+  const [pendingAction, setPendingAction] = useState<ActionDef | null>(null)
+  const flowRun = useFlowRun()
 
   const refresh = useCallback(async () => {
     setRefreshing(true)
@@ -98,6 +110,12 @@ export default function DockerTable({ initialContainers, initialError }: Props)
     return () => clearInterval(id)
   }, [refresh])
 
+  const handleConfirm = useCallback(() => {
+    if (!pendingAction) return
+    flowRun.start(pendingAction.commandKey, pendingAction.args)
+    setPendingAction(null)
+  }, [pendingAction, flowRun.start])
+
   return (
     <div className="space-y-4">
       <div className="flex items-center justify-between">
@@ -129,12 +147,13 @@ export default function DockerTable({ initialContainers, initialError }: Props)
               <th className="px-4 py-3 text-left font-medium text-muted-foreground">Status</th>
               <th className="px-4 py-3 text-left font-medium text-muted-foreground">Ports</th>
               <th className="px-4 py-3 text-left font-medium text-muted-foreground">Uptime</th>
+              <th className="px-4 py-3 text-left font-medium text-muted-foreground">Actions</th>
             </tr>
           </thead>
           <tbody>
             {containers.length === 0 && !error ? (
               <tr>
-                <td colSpan={5} className="px-4 py-8 text-center text-muted-foreground">
+                <td colSpan={6} className="px-4 py-8 text-center text-muted-foreground">
                   No containers running
                 </td>
               </tr>
@@ -158,12 +177,69 @@ export default function DockerTable({ initialContainers, initialError }: Props)
                     {c.ports || '—'}
                   </td>
                   <td className="px-4 py-3 text-xs text-muted-foreground">{c.created}</td>
+                  <td className="px-4 py-3">
+                    <div className="flex items-center gap-2">
+                      <button
+                        onClick={() =>
+                          setPendingAction({
+                            commandKey: 'docker_compose_restart',
+                            args: [c.name],
+                            preview: `docker compose restart ${c.name}`,
+                            title: `Restart ${c.name}`,
+                          })
+                        }
+                        disabled={flowRun.status === 'running'}
+                        className="rounded-md border border-border px-2 py-1 text-xs hover:bg-muted/50 disabled:opacity-50 transition-colors"
+                      >
+                        Restart
+                      </button>
+                      <button
+                        onClick={() =>
+                          setPendingAction({
+                            commandKey: 'docker_compose_stop',
+                            args: [c.name],
+                            preview: `docker compose stop ${c.name}`,
+                            title: `Stop ${c.name}`,
+                          })
+                        }
+                        disabled={flowRun.status === 'running'}
+                        className="rounded-md border border-destructive/30 px-2 py-1 text-xs text-destructive hover:bg-destructive/10 disabled:opacity-50 transition-colors"
+                      >
+                        Stop
+                      </button>
+                    </div>
+                  </td>
                 </tr>
               ))
             )}
           </tbody>
         </table>
       </div>
+
+      {flowRun.status !== 'idle' && (
+        <div className="space-y-2">
+          <div className="flex items-center justify-between">
+            <span className="text-sm font-medium text-foreground">Output</span>
+            {flowRun.status !== 'running' && (
+              <button
+                onClick={flowRun.reset}
+                className="text-xs text-muted-foreground hover:text-foreground transition-colors"
+              >
+                Close
+              </button>
+            )}
+          </div>
+          <StreamingTerminal lines={flowRun.lines} status={flowRun.status} error={flowRun.error} />
+        </div>
+      )}
+
+      <ConfirmDialog
+        open={pendingAction !== null}
+        title={pendingAction?.title ?? ''}
+        commandPreview={pendingAction?.preview ?? ''}
+        onConfirm={handleConfirm}
+        onCancel={() => setPendingAction(null)}
+      />
     </div>
   )
 }