feat: add category-driven ticket workflows

backend/apps/tickets/tests/test_ticket_api.py

@@ -1,15 +1,21 @@
 from django.contrib.auth import get_user_model
 
-from apps.tickets.models import Ticket, TicketEvent
+from apps.tickets.models import Ticket, TicketCategory, TicketEvent
 
 
 def test_create_ticket_returns_ticket_detail(admin_client, db):
+    TicketCategory.objects.get_or_create(code="business_issue", defaults={"name": "业务问题"})
     response = admin_client.post(
         "/api/tickets",
         data={
             "title": "Payment callback fails",
             "description": "Callback returns HTTP 500 in production",
+            "category_code": "business_issue",
             "priority": "high",
+            "problem_performance": "采集进度未更新",
+            "problem_object": "客户 A",
+            "submitter_name": "张三",
+            "submitter_org": "华东分公司",
             "impact_scope": "payment users",
             "environment": "production",
             "related_system": "payment",
@@ -21,6 +27,10 @@ def test_create_ticket_returns_ticket_detail(admin_client, db):
     payload = response.json()
     assert payload["ticket_no"].startswith("TK")
     assert payload["title"] == "Payment callback fails"
+    assert payload["category"]["name"] == "业务问题"
+    assert payload["category_code"] == "business_issue"
+    assert payload["problem_object"] == "客户 A"
+    assert payload["submitter_org"] == "华东分公司"
     assert payload["status"] == "pending"
     assert TicketEvent.objects.filter(ticket_id=payload["id"], event_type="created").exists()
 
@@ -129,6 +139,59 @@ def test_transition_ticket_requires_non_empty_remark(admin_client, db):
     assert response.status_code == 400
 
 
+def test_business_ticket_can_be_resolved_directly_with_resolution(admin_client, db):
+    category, _ = TicketCategory.objects.get_or_create(
+        code="business_issue",
+        defaults={"name": "业务问题"},
+    )
+    ticket = Ticket.objects.create(
+        ticket_no="TK202607010104",
+        title="查询采集进度",
+        description="客户需要确认采集进度",
+        status="pending",
+        category=category,
+    )
+
+    response = admin_client.post(
+        f"/api/tickets/{ticket.id}/status",
+        data={
+            "status": "resolved",
+            "resolution": "已查询采集进度，当前已完成 80%。",
+            "replied_to_customer": True,
+        },
+        content_type="application/json",
+    )
+
+    assert response.status_code == 200
+    ticket.refresh_from_db()
+    assert ticket.status == "resolved"
+    assert ticket.resolution_summary == "已查询采集进度，当前已完成 80%。"
+    assert ticket.is_resolved is True
+    assert ticket.replied_to_customer is True
+
+
+def test_technical_ticket_cannot_be_resolved_directly(admin_client, db):
+    category, _ = TicketCategory.objects.get_or_create(
+        code="technical_issue",
+        defaults={"name": "技术问题"},
+    )
+    ticket = Ticket.objects.create(
+        ticket_no="TK202607010105",
+        title="生产接口异常",
+        description="接口 500",
+        status="pending",
+        category=category,
+    )
+
+    response = admin_client.post(
+        f"/api/tickets/{ticket.id}/status",
+        data={"status": "resolved", "resolution": "已恢复"},
+        content_type="application/json",
+    )
+
+    assert response.status_code == 400
+
+
 def test_get_ticket_events_returns_real_timeline_with_operator(admin_client, db):
     user_model = get_user_model()
     operator = user_model.objects.get(username="admin")