test(health): 健康数据集成测试 — 8 个测试覆盖体征CRUD/化验报告CRUD+审阅/租户隔离

fix(auth): WechatSessionResp mock 缺少 unionid 字段

crates/erp-server/tests/integration.rs

@@ -26,3 +26,5 @@ mod health_device_reading_tests;
 mod health_follow_up_tests;
 #[path = "integration/health_consultation_tests.rs"]
 mod health_consultation_tests;
+#[path = "integration/health_data_tests.rs"]
+mod health_data_tests;