feat(health): consultation_message + follow_up_record PII 加密

- 迁移 m000065/m000066: 添加 key_version 列
- consultation_message: content 加密写入 + 解密读取
- follow_up_record: result/patient_condition/medical_advice 加密
- Entity: 添加 key_version 字段

crates/erp-server/migration/src/lib.rs

@@ -64,6 +64,8 @@ mod m20260426_000061_create_consent;
 mod m20260427_000062_create_tenant_crypto_keys;
 mod m20260427_000063_content_management;
 mod m20260427_000064_add_patient_pii_fields;
+mod m20260427_000065_add_consultation_message_key_version;
+mod m20260427_000066_add_follow_up_record_key_version;
 
 pub struct Migrator;
 
@@ -135,6 +137,8 @@ impl MigratorTrait for Migrator {
             Box::new(m20260427_000062_create_tenant_crypto_keys::Migration),
             Box::new(m20260427_000063_content_management::Migration),
             Box::new(m20260427_000064_add_patient_pii_fields::Migration),
+            Box::new(m20260427_000065_add_consultation_message_key_version::Migration),
+            Box::new(m20260427_000066_add_follow_up_record_key_version::Migration),
         ]
     }
 }