feat(health,ai): 后端服务优化 + 媒体文件处理

- erp-health: article/banner/consultation/media 服务层优化
- erp-ai: analysis/insight/prompt 服务增强
- erp-auth: auth/role/token 服务改进
- erp-workflow: executor 执行引擎修复
- erp-plugin: 服务层改进
- 新增媒体上传文件样例

crates/erp-health/src/error.rs

@@ -101,6 +101,12 @@ pub enum HealthError {
     #[error("交接记录不存在")]
     HandoffLogNotFound,
 
+    #[error("媒体文件不存在")]
+    MediaNotFound,
+
+    #[error("媒体文件夹不存在")]
+    MediaFolderNotFound,
+
     #[error("状态转换无效: {0}")]
     InvalidStatusTransition(String),
 
@@ -148,7 +154,9 @@ impl From<HealthError> for AppError {
             | HealthError::CarePlanOutcomeNotFound
             | HealthError::ShiftNotFound
             | HealthError::PatientAssignmentNotFound
-            | HealthError::HandoffLogNotFound => AppError::NotFound(err.to_string()),
+            | HealthError::HandoffLogNotFound
+            | HealthError::MediaNotFound
+            | HealthError::MediaFolderNotFound => AppError::NotFound(err.to_string()),
             HealthError::ScheduleFull => AppError::Validation(err.to_string()),
             HealthError::InvalidStatusTransition(s) => AppError::Validation(s),
             HealthError::VersionMismatch => AppError::VersionMismatch,