feat(ai): Phase 1A 收尾 — 用量记录 + 健康摘要端点 + 小程序组件

- chat_handler 添加 log_usage 精确记录 token 消耗（provider + model）
- SSE build_sse_stream 添加估算 token 用量记录（4 字符 ≈ 1 token）
- 新增 GET /ai/health-summary 端点聚合患者洞察+分析记录
- 小程序 AiHealthSummaryCard 组件（风险等级+洞察统计+摘要列表）
- 小程序 services/ai-analysis 新增 getHealthSummary API

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

@@ -144,6 +144,8 @@ where
         "AI Agent chat request"
     );
 
+    let provider_name = provider_arc.name().to_string();
+
     // 执行 Agent ReAct 循环
     let orchestrator = AgentOrchestrator::new(provider_arc, std::sync::Arc::new(registry));
     let result = orchestrator
@@ -170,6 +172,25 @@ where
         "AI Agent response sent"
     );
 
+    // 记录用量的 token 消耗
+    if let Err(e) = ai_state
+        .usage
+        .log_usage(
+            ctx.tenant_id,
+            &provider_name,
+            &run_params.model,
+            "chat",
+            result.total_input_tokens as u32,
+            result.total_output_tokens as u32,
+            0,
+            0,
+            false,
+        )
+        .await
+    {
+        tracing::warn!(error = %e, "Failed to log chat usage");
+    }
+
     Ok(Json(ApiResponse::ok(ChatResponse {
         reply: result.reply,
         message_id,

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

@@ -2,8 +2,8 @@ use axum::Json;
 use axum::extract::{Extension, FromRef, Path, Query, State};
 use erp_core::rbac::require_permission;
 use erp_core::types::{ApiResponse, TenantContext};
-use sea_orm::{ColumnTrait, EntityTrait, QueryFilter};
-use serde::Deserialize;
+use sea_orm::{ColumnTrait, EntityTrait, QueryFilter, QueryOrder, QuerySelect};
+use serde::{Deserialize, Serialize};
 
 use crate::dto::copilot::ListInsightsQuery;
 use crate::state::AiState;
@@ -112,3 +112,134 @@ where
         serde_json::json!({"dismissed": true}),
     )))
 }
+
+// === 健康摘要（小程序患者端） ===
+
+#[derive(Debug, Deserialize, utoipa::IntoParams)]
+pub struct HealthSummaryQuery {
+    pub patient_id: uuid::Uuid,
+}
+
+#[derive(Debug, Serialize, utoipa::ToSchema)]
+pub struct HealthSummaryResponse {
+    pub patient_id: uuid::Uuid,
+    pub risk_level: String,
+    pub active_insights_count: usize,
+    pub recent_analyses_count: i64,
+    pub latest_insight_title: Option<String>,
+    pub latest_analysis_type: Option<String>,
+    pub summary_items: Vec<SummaryItem>,
+}
+
+#[derive(Debug, Serialize, utoipa::ToSchema)]
+pub struct SummaryItem {
+    pub category: String,
+    pub title: String,
+    pub severity: Option<String>,
+    pub created_at: String,
+}
+
+#[utoipa::path(
+    get,
+    path = "/ai/health-summary",
+    params(HealthSummaryQuery),
+    responses((status = 200, description = "患者健康摘要")),
+    tag = "AI 健康摘要",
+    security(("bearer_auth" = [])),
+)]
+pub async fn health_summary<S>(
+    State(state): State<AiState>,
+    Extension(ctx): Extension<TenantContext>,
+    Query(params): Query<HealthSummaryQuery>,
+) -> Result<Json<ApiResponse<HealthSummaryResponse>>, erp_core::error::AppError>
+where
+    AiState: FromRef<S>,
+    S: Clone + Send + Sync + 'static,
+{
+    require_permission(&ctx, "ai.analysis.list")?;
+
+    let patient_id = params.patient_id;
+
+    // 查询该患者的活跃洞察（最近 7 天、未读）
+    let seven_days_ago = chrono::Utc::now() - chrono::Duration::days(7);
+    let insights_query = crate::entity::copilot_insights::Entity::find()
+        .filter(crate::entity::copilot_insights::Column::TenantId.eq(ctx.tenant_id))
+        .filter(crate::entity::copilot_insights::Column::PatientId.eq(patient_id))
+        .filter(crate::entity::copilot_insights::Column::DeletedAt.is_null())
+        .filter(crate::entity::copilot_insights::Column::CreatedAt.gte(seven_days_ago))
+        .order_by_desc(crate::entity::copilot_insights::Column::CreatedAt);
+    let insights: Vec<crate::entity::copilot_insights::Model> = insights_query
+        .limit(10)
+        .all(&state.db)
+        .await
+        .unwrap_or_default();
+
+    let active_insights_count = insights.len();
+    let latest_insight_title = insights.first().map(|i| i.title.clone());
+
+    // 判断整体风险等级：按最高 severity
+    let risk_level = insights
+        .iter()
+        .filter_map(|i| i.severity.as_deref())
+        .max_by(|a, b| {
+            let ord = |s: &str| match s {
+                "critical" => 4,
+                "high" => 3,
+                "medium" => 2,
+                _ => 1,
+            };
+            ord(a).cmp(&ord(b))
+        })
+        .unwrap_or("low")
+        .to_string();
+
+    // 查询该患者最近分析记录
+    let analyses_query = crate::entity::ai_analysis::Entity::find()
+        .filter(crate::entity::ai_analysis::Column::TenantId.eq(ctx.tenant_id))
+        .filter(crate::entity::ai_analysis::Column::PatientId.eq(patient_id))
+        .filter(crate::entity::ai_analysis::Column::Status.eq("completed"))
+        .filter(crate::entity::ai_analysis::Column::DeletedAt.is_null())
+        .order_by_desc(crate::entity::ai_analysis::Column::CreatedAt);
+    let analyses: Vec<crate::entity::ai_analysis::Model> = analyses_query
+        .limit(5)
+        .all(&state.db)
+        .await
+        .unwrap_or_default();
+
+    let recent_analyses_count = analyses.len() as i64;
+    let latest_analysis_type = analyses.first().map(|a| a.analysis_type.clone());
+
+    // 组装摘要条目
+    let mut summary_items: Vec<SummaryItem> = insights
+        .iter()
+        .map(|i| SummaryItem {
+            category: i.insight_type.clone(),
+            title: i.title.clone(),
+            severity: i.severity.clone(),
+            created_at: i.created_at.to_rfc3339(),
+        })
+        .collect();
+
+    for a in &analyses {
+        summary_items.push(SummaryItem {
+            category: a.analysis_type.clone(),
+            title: format!("AI {}分析", a.analysis_type),
+            severity: None,
+            created_at: a.created_at.to_rfc3339(),
+        });
+    }
+
+    // 按时间倒序排列
+    summary_items.sort_by(|a, b| b.created_at.cmp(&a.created_at));
+    summary_items.truncate(10);
+
+    Ok(Json(ApiResponse::ok(HealthSummaryResponse {
+        patient_id,
+        risk_level,
+        active_insights_count,
+        recent_analyses_count,
+        latest_insight_title,
+        latest_analysis_type,
+        summary_items,
+    })))
+}

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

@@ -880,6 +880,22 @@ fn build_sse_stream(
         let metadata = serde_json::json!({"analysis_type": analysis_type});
         let _ = state.analysis.complete_analysis(analysis_id, full_content.clone(), metadata.clone()).await;
 
+        // 记录用量的估算 token 消耗（SSE 模式无法获取精确 token 数，按 4 字符 ≈ 1 token 估算）
+        let est_output_tokens = (full_content.len() as u32) / 4;
+        if let Err(e) = state.usage.log_usage(
+            tenant_id,
+            "sse",
+            "",
+            analysis_type,
+            0,
+            est_output_tokens,
+            0,
+            0,
+            false,
+        ).await {
+            tracing::warn!(error = %e, "Failed to log SSE analysis usage");
+        }
+
         // 后处理：解析双通道输出、创建建议、发布事件
         crate::service::post_process::post_process_analysis(
             &state,