feat: add ticket workflow pages

frontend/src/features/tickets/api.ts

@@ -0,0 +1,36 @@
+import { apiRequest } from '@/lib/api'
+
+import type { Ticket, TicketComment, TicketInput, TicketStatus } from './types'
+
+export function listTickets(params: { status?: string; q?: string } = {}) {
+  const query = new URLSearchParams()
+  if (params.status) query.set('status', params.status)
+  if (params.q) query.set('q', params.q)
+  const suffix = query.toString() ? `?${query}` : ''
+  return apiRequest<Ticket[]>(`/tickets${suffix}`)
+}
+
+export function createTicket(payload: TicketInput) {
+  return apiRequest<Ticket>('/tickets', {
+    method: 'POST',
+    body: JSON.stringify(payload)
+  })
+}
+
+export function getTicket(ticketId: number) {
+  return apiRequest<Ticket>(`/tickets/${ticketId}`)
+}
+
+export function transitionTicket(ticketId: number, status: TicketStatus, remark = '') {
+  return apiRequest<Ticket>(`/tickets/${ticketId}/status`, {
+    method: 'POST',
+    body: JSON.stringify({ status, remark })
+  })
+}
+
+export function addTicketComment(ticketId: number, content: string) {
+  return apiRequest<TicketComment>(`/tickets/${ticketId}/comments`, {
+    method: 'POST',
+    body: JSON.stringify({ content, comment_type: 'internal_note', visibility: 'internal' })
+  })
+}