feat(application-form-fill): 串联填表工作流产物输出

tests/test_application_form_fill_notification.py

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+import pytest
+
+from review_agent.application_form_fill.services.notifier import notify_completion
+from review_agent.models import (
+    ApplicationFormFillBatch,
+    ApplicationFormFillNotificationRecord,
+    Conversation,
+    ExportedSummaryFile,
+    FileSummaryBatch,
+)
+
+
+pytestmark = pytest.mark.django_db
+
+
+def test_notify_completion_records_success(django_user_model):
+    user = django_user_model.objects.create_user(username="owner", password="pass")
+    conversation = Conversation.objects.create(user=user, title="会话")
+    summary = FileSummaryBatch.objects.create(conversation=conversation, user=user, batch_no="FS-NOTIFY")
+    batch = ApplicationFormFillBatch.objects.create(
+        conversation=conversation,
+        user=user,
+        source_summary_batch=summary,
+        batch_no="AFF-NOTIFY",
+        selected_templates=["registration_certificate"],
+    )
+    exported = ExportedSummaryFile.objects.create(
+        batch=summary,
+        workflow_type="application_form_fill",
+        workflow_batch_id=batch.pk,
+        export_category="filled_template",
+        export_type=ExportedSummaryFile.ExportType.WORD,
+        file_name="filled.docx",
+        storage_path="filled.docx",
+    )
+
+    record = notify_completion(batch, [exported])
+
+    assert record.send_status == ApplicationFormFillNotificationRecord.SendStatus.SUCCESS
+    assert record.export_ids == [exported.pk]
+    assert record.template_codes == ["registration_certificate"]
+    assert record.sent_at is not None
+
+
+def test_notify_completion_records_failure_without_raising(django_user_model):
+    user = django_user_model.objects.create_user(username="owner", password="pass")
+    conversation = Conversation.objects.create(user=user, title="会话")
+    summary = FileSummaryBatch.objects.create(conversation=conversation, user=user, batch_no="FS-NOTIFY-FAIL")
+    batch = ApplicationFormFillBatch.objects.create(
+        conversation=conversation,
+        user=user,
+        source_summary_batch=summary,
+        batch_no="AFF-NOTIFY-FAIL",
+        selected_templates=["registration_certificate"],
+    )
+
+    record = notify_completion(batch, [], fail=True)
+
+    assert record.send_status == ApplicationFormFillNotificationRecord.SendStatus.FAILED
+    assert record.retry_count == 1
+    assert "mock" in record.error_message