feat: track crawl run employee changes and verify dismissals

tests/test_api_mcp.py

@@ -13,7 +13,7 @@ import app.security as security
 from app.config import Settings, get_settings
 from app.db import Base, get_db
 from app.main import app
-from app.models import CrawlRun, Employee
+from app.models import CrawlRun, CrawlRunEmployeeChange, Employee
 from app.security import SESSION_COOKIE, sign_session
 
 
@@ -23,7 +23,7 @@ def test_health_returns_versions():
     response = client.get("/api/health")
 
     assert response.status_code == 200
-    assert response.json()["backend_version"] == "0.3.0"
+    assert response.json()["backend_version"] == "0.4.0"
 
 
 def test_mcp_requires_token_and_lists_tools():
@@ -58,6 +58,7 @@ def test_mcp_requires_token_and_lists_tools():
     assert unauthorized.status_code == 401
     assert authorized.status_code == 200
     assert authorized.json()["result"]["tools"][0]["name"] == "search_employees"
+    assert any(tool["name"] == "get_crawl_run_details" for tool in authorized.json()["result"]["tools"])
 
     app.dependency_overrides.clear()
 
@@ -117,6 +118,76 @@ def test_mcp_search_employees_returns_matching_employee():
     app.dependency_overrides.clear()
 
 
+def test_mcp_get_crawl_run_details_returns_changes():
+    engine = create_engine(
+        "sqlite:///:memory:",
+        connect_args={"check_same_thread": False},
+        poolclass=StaticPool,
+    )
+    Base.metadata.create_all(engine)
+    Session = sessionmaker(bind=engine)
+    session = Session()
+    run = CrawlRun(source_url="https://miem.hse.ru/persons", status="completed", new_count=1)
+    employee = Employee(
+        profile_key="staff:new",
+        profile_type="staff",
+        profile_id="new",
+        canonical_url="https://www.hse.ru/staff/new",
+        full_name="New Person",
+        status="active",
+        first_seen_at=datetime.now(timezone.utc),
+        last_seen_at=datetime.now(timezone.utc),
+    )
+    session.add_all([run, employee])
+    session.commit()
+    session.add(
+        CrawlRunEmployeeChange(
+            crawl_run_id=run.id,
+            employee_id=employee.id,
+            profile_key=employee.profile_key,
+            profile_url=employee.canonical_url,
+            full_name=employee.full_name,
+            change_type="new",
+            profile_available=True,
+            message="added",
+        )
+    )
+    session.commit()
+    run_id = run.id
+    session.close()
+
+    def override_db():
+        db = Session()
+        try:
+            yield db
+        finally:
+            db.close()
+
+    app.dependency_overrides[get_db] = override_db
+    app.dependency_overrides[get_settings] = lambda: Settings(
+        mcp_auth_mode="token", mcp_token="secret", session_secret="session-secret"
+    )
+    client = TestClient(app)
+
+    response = client.post(
+        "/mcp",
+        headers={"Authorization": "Bearer secret"},
+        json={
+            "jsonrpc": "2.0",
+            "id": 1,
+            "method": "tools/call",
+            "params": {"name": "get_crawl_run_details", "arguments": {"run_id": run_id}},
+        },
+    )
+
+    assert response.status_code == 200
+    text = response.json()["result"]["content"][0]["text"]
+    assert "New Person" in text
+    assert "changes_detail_available" in text
+
+    app.dependency_overrides.clear()
+
+
 def test_mcp_oauth_rejects_static_token():
     engine = create_engine(
         "sqlite:///:memory:",
@@ -281,8 +352,23 @@ def test_api_employees_and_stats_require_admin_session():
             current_data={"contacts": {"emails": ["alpha@hse.ru"]}, "sections": []},
         )
     )
-    db.add(CrawlRun(source_url="https://miem.hse.ru/persons", status="completed", new_count=1))
+    run = CrawlRun(source_url="https://miem.hse.ru/persons", status="completed", new_count=1)
+    db.add(run)
     db.commit()
+    db.add(
+        CrawlRunEmployeeChange(
+            crawl_run_id=run.id,
+            employee_id=1,
+            profile_key="staff:alpha",
+            profile_url="https://www.hse.ru/staff/alpha",
+            full_name="Alpha Person",
+            change_type="new",
+            profile_available=True,
+            message="added",
+        )
+    )
+    db.commit()
+    run_id = run.id
     db.close()
 
     settings = Settings(admin_username="admin", admin_password="password", session_secret="session-secret")
@@ -301,11 +387,14 @@ def test_api_employees_and_stats_require_admin_session():
 
     employees = client.get("/api/employees", params={"q": "Alpha", "has_email": True})
     stats = client.get("/api/stats")
+    run_details = client.get(f"/api/crawl-runs/{run_id}")
 
     assert employees.status_code == 200
     assert employees.json()["total"] == 1
     assert stats.status_code == 200
     assert stats.json()["new_in_last_run"] == 1
+    assert run_details.status_code == 200
+    assert run_details.json()["changes"]["new"][0]["full_name"] == "Alpha Person"
 
     app.dependency_overrides.clear()