feat(repairs): add repair management foundation

frontend/athena/components/repairs/RepairStatusDialog.tsx

@@ -0,0 +1,45 @@
+"use client";
+
+import { useState } from "react";
+
+import { Button } from "@/components/ui/button";
+import { Dialog, DialogContent, DialogDescription, DialogFooter, DialogHeader, DialogTitle } from "@/components/ui/dialog";
+import type { Repair, RepairStatus } from "@/types/repair";
+
+type Props = {
+  open: boolean;
+  repair: Repair | null;
+  pending: boolean;
+  serverError: string;
+  onOpenChange: (open: boolean) => void;
+  onSubmit: (status: RepairStatus, note: string) => void;
+};
+
+const statuses: RepairStatus[] = ["new", "accepted", "diagnosis", "estimate", "waiting_for_customer", "approved", "repair", "final_test", "ready_for_pickup", "shipped", "completed", "cancelled"];
+
+export default function RepairStatusDialog({ open, repair, pending, serverError, onOpenChange, onSubmit }: Props) {
+  const [status, setStatus] = useState<RepairStatus>("new");
+  const [note, setNote] = useState("");
+
+  return (
+    <Dialog open={open} onOpenChange={onOpenChange}>
+      <DialogContent>
+        <DialogHeader>
+          <DialogTitle>Status ändern</DialogTitle>
+          <DialogDescription>{repair ? `${repair.repair_number} · ${repair.customer_name}` : "Reparaturstatus aktualisieren"}</DialogDescription>
+        </DialogHeader>
+        <div className="grid gap-3">
+          <label className="grid gap-1 text-sm">Neuer Status<select className="h-8 rounded-lg border px-2 text-sm" value={status} onChange={(event) => setStatus(event.target.value as RepairStatus)}>
+            {statuses.map((item) => <option key={item} value={item}>{item}</option>)}
+          </select></label>
+          <label className="grid gap-1 text-sm">Notiz<textarea className="min-h-24 rounded-lg border p-2 text-sm" value={note} onChange={(event) => setNote(event.target.value)} /></label>
+          {serverError && <p className="text-sm text-red-600">{serverError}</p>}
+        </div>
+        <DialogFooter>
+          <Button type="button" variant="outline" onClick={() => onOpenChange(false)} disabled={pending}>Abbrechen</Button>
+          <Button type="button" onClick={() => onSubmit(status, note)} disabled={pending}>{pending ? "Speichert..." : "Status speichern"}</Button>
+        </DialogFooter>
+      </DialogContent>
+    </Dialog>
+  );
+}