feat(ai): Phase 2A-3 随访页 AI 辅助生成小结 — SSE 端点 + 前端集成

- AnalysisType 新增 FollowUpSummary 变体（as_str/prompt_name）
- HealthDataProvider 新增 get_follow_up_summary_data() + FollowUpSummaryDataDto
- erp-health 实现随访数据查询（task + records + PII 解密）
- 新增 /ai/analyze/follow-up-summary SSE 端点
- SanitizationService 新增 sanitize_follow_up_data()
- 前端 analysisSse.ts/AiAnalysisCard 支持 follow-up-summary 类型
- FollowUpTaskList 操作列新增「AI 小结」按钮

crates/erp-ai/src/handler/mod.rs

@@ -52,6 +52,7 @@ pub struct AnalyzeBody {
     pub report_id: Option<uuid::Uuid>,
     pub patient_id: Option<uuid::Uuid>,
     pub metrics: Option<Vec<String>>,
+    pub source_id: Option<uuid::Uuid>,
 }
 
 // === SSE 分析端点 ===
@@ -378,6 +379,83 @@ where
     Ok(Sse::new(sse_stream).keep_alive(KeepAlive::default()))
 }
 
+#[utoipa::path(
+    post,
+    path = "/ai/analyze/follow-up-summary",
+    request_body = AnalyzeBody,
+    responses((status = 200, description = "SSE 随访小结生成流")),
+    tag = "AI 分析",
+    security(("bearer_auth" = [])),
+)]
+pub async fn stream_follow_up_summary<S>(
+    State(state): State<AiState>,
+    Extension(ctx): Extension<TenantContext>,
+    Json(body): Json<AnalyzeBody>,
+) -> Result<Sse<impl futures::Stream<Item = Result<Event, Infallible>>>, erp_core::error::AppError>
+where
+    AiState: FromRef<S>,
+    S: Clone + Send + Sync + 'static,
+{
+    require_permission(&ctx, "ai.analysis.manage")?;
+    let task_id = body
+        .source_id
+        .ok_or_else(|| erp_core::error::AppError::Validation("source_id (task_id) 必填".into()))?;
+
+    let data = state
+        .health_provider
+        .get_follow_up_summary_data(ctx.tenant_id, task_id)
+        .await?;
+
+    if data.records.is_empty() {
+        return Err(erp_core::error::AppError::Validation(
+            "该随访任务尚无随访记录，无法生成小结。请先填写至少一条随访记录。".into(),
+        ));
+    }
+
+    let sanitized_data = state.analysis.sanitizer.sanitize_follow_up_data(&data)?;
+
+    let prompt = state
+        .prompt
+        .get_active_prompt(ctx.tenant_id, "follow_up_summary_generation")
+        .await?;
+
+    let model_config = &prompt.model_config;
+    let (model, temperature, max_tokens) =
+        resolve_model_config(model_config, ctx.tenant_id, &state.db).await;
+
+    let (stream, analysis_id, _) = state
+        .analysis
+        .stream_analyze(
+            ctx.tenant_id,
+            ctx.user_id,
+            data.patient_id,
+            AnalysisType::FollowUpSummary,
+            task_id.to_string(),
+            prompt.system_prompt,
+            prompt.user_prompt_template,
+            sanitized_data,
+            model,
+            temperature,
+            max_tokens,
+        )
+        .await?;
+
+    let analysis_id_clone = analysis_id;
+    let state_clone = state.clone();
+    let patient_id_clone = data.patient_id;
+
+    let sse_stream = build_sse_stream(
+        stream,
+        analysis_id_clone,
+        state_clone,
+        "follow_up_summary",
+        ctx.tenant_id,
+        patient_id_clone,
+        ctx.user_id,
+    );
+    Ok(Sse::new(sse_stream).keep_alive(KeepAlive::default()))
+}
+
 // === 分析历史 ===
 
 #[derive(Debug, Deserialize, utoipa::IntoParams)]