test(server): add OCR endpoint and service tests

New tests:
- server/tests/test_ocr_endpoints.py: OCR API endpoint tests
- server/tests/test_ocr_service.py: OCR service unit tests

Updated tests:
- server/tests/test_openapi_schema.py: update OpenAPI schema tests
- server/tests/test_orchestrator_service.py: update orchestrator service tests

server/tests/test_orchestrator_service.py

@@ -3,13 +3,14 @@ from __future__ import annotations
 from collections.abc import Generator
 
 from fastapi.testclient import TestClient
-from sqlalchemy import create_engine
+from sqlalchemy import create_engine, select
 from sqlalchemy.orm import Session, sessionmaker
 from sqlalchemy.pool import StaticPool
 
 from app.api.deps import get_db
 from app.db.base import Base
 from app.main import create_app
+from app.models.financial_record import ExpenseClaim
 from app.services.agent_assets import AgentAssetService
 
 
@@ -142,7 +143,7 @@ def test_orchestrator_approval_required_returns_confirmation_result() -> None:
 
 
 def test_orchestrator_user_agent_draft_returns_structured_payload() -> None:
-    client, _ = build_client()
+    client, session_factory = build_client()
 
     response = client.post(
         "/api/v1/orchestrator/run",
@@ -159,8 +160,22 @@ def test_orchestrator_user_agent_draft_returns_structured_payload() -> None:
     assert payload["selected_agent"] == "user_agent"
     assert payload["status"] == "succeeded"
     assert payload["result"]["draft_payload"]["confirmation_required"] is True
+    assert payload["result"]["draft_payload"]["claim_id"]
+    assert payload["result"]["draft_payload"]["claim_no"].startswith("EXP-")
+    assert payload["result"]["draft_payload"]["status"] == "draft"
     assert payload["result"]["suggested_actions"]
 
+    with session_factory() as db:
+        claim = db.scalar(
+            select(ExpenseClaim).where(
+                ExpenseClaim.id == payload["result"]["draft_payload"]["claim_id"]
+            )
+        )
+        assert claim is not None
+        assert claim.claim_no == payload["result"]["draft_payload"]["claim_no"]
+        assert claim.status == "draft"
+        assert claim.items
+
 
 def test_orchestrator_treats_expense_narrative_as_draft_instead_of_ar_query() -> None:
     client, _ = build_client()