fix(ai): 审计问题修复 — 错误映射/性能/SSE/依赖规范化

- C3: handler 中 .map_err(AppError::Internal) 改为 ? 操作符，
  利用 From<AiError> for AppError 实现正确的 HTTP 状态码映射
- H1: AiState 预构建在 AppState 初始化时，避免每次请求重建
  ClaudeProvider/AnalysisService/PromptService/UsageService
- H3: stream_analyze 的 user_id 参数传递到 created_by/updated_by
- H5: SSE 事件添加 .event("chunk"/"error"/"done") 类型字段
- L3: erp-ai Cargo.toml 依赖改用 workspace 引用
  (reqwest/handlebars/sha2/hex)
- 修复 erp-health 编译错误: points_handler 缺少 ColumnTrait 导入,
  points_service 版本字段部分移动问题

crates/erp-ai/src/service/analysis.rs

@@ -32,7 +32,7 @@ impl AnalysisService {
     pub async fn stream_analyze(
         &self,
         tenant_id: Uuid,
-        _user_id: Uuid,
+        user_id: Uuid,
         patient_id: Uuid,
         analysis_type: AnalysisType,
         source_ref: String,
@@ -58,6 +58,7 @@ impl AnalysisService {
         self.create_analysis_record(
             analysis_id,
             tenant_id,
+            user_id,
             patient_id,
             analysis_type.as_str(),
             &source_ref,
@@ -145,6 +146,7 @@ impl AnalysisService {
         &self,
         id: Uuid,
         tenant_id: Uuid,
+        user_id: Uuid,
         patient_id: Uuid,
         analysis_type: &str,
         source_ref: &str,
@@ -170,8 +172,8 @@ impl AnalysisService {
             error_message: Set(None),
             created_at: Set(now),
             updated_at: Set(now),
-            created_by: Set(None),
-            updated_by: Set(None),
+            created_by: Set(Some(user_id)),
+            updated_by: Set(Some(user_id)),
             deleted_at: Set(None),
             version_lock: Set(1),
         };