feat(PBI-59): SprintSubTasksPane component voor jobs-pagina

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

components/jobs/sprint-sub-tasks-pane.tsx

@@ -0,0 +1,67 @@
+'use client'
+
+import { useEffect, useState } from 'react'
+import { cn } from '@/lib/utils'
+import { JOB_STATUS_LABELS, JOB_STATUS_COLORS } from '@/components/shared/job-status'
+import type { ClaudeJobStatusApi } from '@/lib/job-status'
+
+type SubTask = {
+  id: string
+  taskCode: string | null
+  taskTitle: string
+  status: string
+}
+
+interface SprintSubTasksPaneProps {
+  jobId: string | null
+  isSprintJob: boolean
+}
+
+function SubTaskList({ jobId }: { jobId: string }) {
+  const [subTasks, setSubTasks] = useState<SubTask[]>([])
+  const [loading, setLoading] = useState(true)
+
+  useEffect(() => {
+    const controller = new AbortController()
+
+    fetch(`/api/jobs/${jobId}/sub-tasks`, { signal: controller.signal })
+      .then(res => res.json())
+      .then((data: SubTask[]) => {
+        setSubTasks(data)
+        setLoading(false)
+      })
+      .catch(() => {
+        setLoading(false)
+      })
+
+    return () => controller.abort()
+  }, [jobId])
+
+  if (loading) {
+    return <div className="text-xs text-muted-foreground p-3">Laden…</div>
+  }
+
+  if (subTasks.length === 0) return null
+
+  return (
+    <div className="border-b p-2 space-y-1 max-h-44 overflow-y-auto shrink-0">
+      {subTasks.map(t => {
+        const apiStatus = t.status.toLowerCase() as ClaudeJobStatusApi
+        return (
+          <div key={t.id} className="flex items-center gap-2 py-1 px-2 rounded hover:bg-surface-container text-sm">
+            <span className="text-xs font-mono text-muted-foreground w-16 shrink-0 truncate">{t.taskCode}</span>
+            <span className="flex-1 truncate">{t.taskTitle}</span>
+            <span className={cn('text-xs px-1.5 py-0.5 rounded-full border', JOB_STATUS_COLORS[apiStatus])}>
+              {JOB_STATUS_LABELS[apiStatus] ?? t.status}
+            </span>
+          </div>
+        )
+      })}
+    </div>
+  )
+}
+
+export default function SprintSubTasksPane({ jobId, isSprintJob }: SprintSubTasksPaneProps) {
+  if (!isSprintJob || !jobId) return null
+  return <SubTaskList key={jobId} jobId={jobId} />
+}