feat(ai): Phase 1C 管理看板 — 用量/成本/功能开关三合一

- UsageService 新增 get_daily_usage + aggregate_daily 日聚合能力
- 新增 3 个管理端点: /ai/admin/daily-usage, /ai/admin/flags (GET+POST)
- AiUsageDashboard 扩展为三 Tab: 用量概览/成本分析/功能开关
- 功能开关支持 Switch 实时切换，权限码 ai.admin.flags
- 日聚合用量 30 天趋势表，含 Token/成本汇总统计

apps/web/src/api/ai/usage.ts

@@ -45,6 +45,22 @@ export interface CostEstimate {
   currency: string;
 }
 
+export interface DailyUsageRow {
+  date: string;
+  feature: string;
+  provider: string;
+  model: string;
+  total_calls: number;
+  total_input_tokens: number;
+  total_output_tokens: number;
+  total_cost_cents: number;
+}
+
+export interface FeatureFlag {
+  feature: string;
+  is_enabled: boolean;
+}
+
 export const usageApi = {
   overview: async () => {
     const resp = await client.get('/ai/usage/overview');
@@ -74,4 +90,18 @@ export const usageApi = {
     const resp = await client.get('/ai/cost/estimate', { params });
     return resp.data.data as CostEstimate;
   },
+  getDailyUsage: async (startDate: string, endDate: string) => {
+    const resp = await client.get('/ai/admin/daily-usage', {
+      params: { start_date: startDate, end_date: endDate },
+    });
+    return resp.data.data as DailyUsageRow[];
+  },
+  getFeatureFlags: async () => {
+    const resp = await client.get('/ai/admin/flags');
+    return resp.data.data as FeatureFlag[];
+  },
+  updateFeatureFlag: async (feature: string, enabled: boolean) => {
+    const resp = await client.post('/ai/admin/flags', { feature, enabled });
+    return resp.data.data as { feature: string; enabled: boolean };
+  },
 };

apps/web/src/pages/health/AiUsageDashboard.tsx

@@ -1,18 +1,29 @@
-import { useEffect, useState } from 'react';
-import { Card, Spin, Statistic, message, Empty, Result, Row, Col } from 'antd';
+import { useEffect, useState, useCallback } from 'react';
+import {
+  Card, Spin, Statistic, message, Empty, Result, Row, Col, Tabs, Table, Switch, Tag,
+} from 'antd';
 import {
   ThunderboltOutlined,
   ExperimentOutlined,
+  DollarOutlined,
+  SettingOutlined,
 } from '@ant-design/icons';
 import { useThemeMode } from '../../hooks/useThemeMode';
 import { usePermission } from '../../hooks/usePermission';
-import { usageApi, type UsageOverview, type TypeDistribution } from '../../api/ai/usage';
+import {
+  usageApi,
+  type UsageOverview,
+  type TypeDistribution,
+  type DailyUsageRow,
+  type FeatureFlag,
+} from '../../api/ai/usage';
 
 const ANALYSIS_TYPE_MAP: Record<string, string> = {
   lab_report_interpretation: '化验单解读',
   health_trend_analysis: '趋势分析',
   personalized_checkup_plan: '体检方案',
   report_summary_generation: '报告摘要',
+  chat: 'AI 聊天',
 };
 
 const TYPE_COLORS: Record<string, string> = {
@@ -20,35 +31,80 @@ const TYPE_COLORS: Record<string, string> = {
   health_trend_analysis: '#52c41a',
   personalized_checkup_plan: '#722ed1',
   report_summary_generation: '#fa8c16',
+  chat: '#eb2f96',
+};
+
+const FEATURE_LABELS: Record<string, string> = {
+  'ai.analysis': 'AI 分析',
+  'ai.chat': 'AI 聊天',
+  'ai.trend': '趋势分析',
+  'ai.report': '报告摘要',
+  'ai.checkup': '体检方案',
+  'ai.copilot': 'Copilot 辅助',
+  'ai.alert.push': 'AI 预警推送',
+  'ai.rag': 'RAG 知识检索',
+  'ai.voice': '语音交互',
+  'ai.suggestion': 'AI 建议',
+  'ai.lab': '化验解读',
+  'ai.summary': '综合摘要',
 };
 
 export default function AiUsageDashboard() {
   const { hasPermission } = usePermission('ai.usage.list');
-  if (!hasPermission) return <Result status="403" title="权限不足" subTitle="您没有查看 AI 用量的权限" />;
+  const adminFlags = usePermission('ai.admin.flags');
   const [overview, setOverview] = useState<UsageOverview | null>(null);
   const [types, setTypes] = useState<TypeDistribution[]>([]);
+  const [dailyUsage, setDailyUsage] = useState<DailyUsageRow[]>([]);
+  const [flags, setFlags] = useState<FeatureFlag[]>([]);
   const [loading, setLoading] = useState(true);
   const isDark = useThemeMode();
 
-  useEffect(() => {
-    const fetchData = async () => {
-      setLoading(true);
-      try {
-        const [ov, tp] = await Promise.all([
-          usageApi.overview(),
-          usageApi.byType(),
-        ]);
-        setOverview(ov);
-        setTypes(tp);
-      } catch {
-        message.error('加载用量统计失败');
-      } finally {
-        setLoading(false);
-      }
-    };
-    fetchData();
+  const fetchData = useCallback(async () => {
+    setLoading(true);
+    try {
+      const [ov, tp] = await Promise.all([
+        usageApi.overview(),
+        usageApi.byType(),
+      ]);
+      setOverview(ov);
+      setTypes(tp);
+    } catch {
+      message.error('加载用量统计失败');
+    } finally {
+      setLoading(false);
+    }
   }, []);
 
+  const fetchDailyUsage = useCallback(async () => {
+    const end = new Date();
+    const start = new Date();
+    start.setDate(start.getDate() - 30);
+    const fmt = (d: Date) => d.toISOString().slice(0, 10);
+    try {
+      const rows = await usageApi.getDailyUsage(fmt(start), fmt(end));
+      setDailyUsage(rows);
+    } catch {
+      message.error('加载日聚合用量失败');
+    }
+  }, []);
+
+  const fetchFlags = useCallback(async () => {
+    try {
+      const data = await usageApi.getFeatureFlags();
+      setFlags(data);
+    } catch {
+      message.error('加载功能开关失败');
+    }
+  }, []);
+
+  useEffect(() => {
+    fetchData();
+  }, [fetchData]);
+
+  if (!hasPermission) {
+    return <Result status="403" title="权限不足" subTitle="您没有查看 AI 用量的权限" />;
+  }
+
   if (loading) {
     return (
       <div style={{ display: 'flex', justifyContent: 'center', padding: 80 }}>
@@ -65,81 +121,236 @@ export default function AiUsageDashboard() {
 
   const totalCount = types.reduce((sum, t) => sum + t.count, 0);
 
+  // 日聚合汇总
+  const totalCalls = dailyUsage.reduce((s, r) => s + r.total_calls, 0);
+  const totalTokens = dailyUsage.reduce(
+    (s, r) => s + r.total_input_tokens + r.total_output_tokens,
+    0,
+  );
+  const totalCost = dailyUsage.reduce((s, r) => s + r.total_cost_cents, 0);
+
+  const handleToggleFlag = async (feature: string, enabled: boolean) => {
+    try {
+      await usageApi.updateFeatureFlag(feature, enabled);
+      setFlags((prev) =>
+        prev.map((f) => (f.feature === feature ? { ...f, is_enabled: enabled } : f)),
+      );
+      message.success(`${FEATURE_LABELS[feature] || feature} 已${enabled ? '启用' : '禁用'}`);
+    } catch {
+      message.error('更新功能开关失败');
+    }
+  };
+
+  const tabItems = [
+    {
+      key: 'overview',
+      label: '用量概览',
+      icon: <ThunderboltOutlined />,
+      children: (
+        <>
+          <Row gutter={16} style={{ marginBottom: 16 }}>
+            <Col span={8}>
+              <Card style={cardStyle}>
+                <Statistic
+                  title="总分析次数"
+                  value={overview?.total_count ?? 0}
+                  prefix={<ThunderboltOutlined style={{ color: '#1890ff' }} />}
+                  valueStyle={{ fontWeight: 600 }}
+                />
+              </Card>
+            </Col>
+            <Col span={8}>
+              <Card style={cardStyle}>
+                <Statistic
+                  title="分析类型数"
+                  value={types.length}
+                  prefix={<ExperimentOutlined style={{ color: '#52c41a' }} />}
+                  valueStyle={{ fontWeight: 600 }}
+                />
+              </Card>
+            </Col>
+            <Col span={8}>
+              <Card style={cardStyle}>
+                <Statistic
+                  title="本月分析"
+                  value={totalCount}
+                  prefix={<ThunderboltOutlined style={{ color: '#fa8c16' }} />}
+                  valueStyle={{ fontWeight: 600 }}
+                />
+              </Card>
+            </Col>
+          </Row>
+
+          <Card style={cardStyle} title="分析类型分布">
+            {types.length === 0 ? (
+              <Empty description="暂无分析数据" />
+            ) : (
+              <Row gutter={[16, 16]}>
+                {types.map((t) => {
+                  const pct = totalCount > 0 ? Math.round((t.count / totalCount) * 100) : 0;
+                  const label = ANALYSIS_TYPE_MAP[t.analysis_type] || t.analysis_type;
+                  const color = TYPE_COLORS[t.analysis_type] || '#1890ff';
+                  return (
+                    <Col span={6} key={t.analysis_type}>
+                      <div
+                        style={{
+                          padding: 16,
+                          borderRadius: 8,
+                          background: isDark ? '#0f172a' : '#f8fafc',
+                          textAlign: 'center',
+                        }}
+                      >
+                        <div style={{ fontSize: 28, fontWeight: 700, color }}>{t.count}</div>
+                        <div style={{ fontSize: 13, color: isDark ? '#94a3b8' : '#475569', marginTop: 4 }}>
+                          {label}
+                        </div>
+                        <div style={{ fontSize: 12, color: isDark ? '#475569' : '#94a3b8', marginTop: 4 }}>
+                          {pct}%
+                        </div>
+                      </div>
+                    </Col>
+                  );
+                })}
+              </Row>
+            )}
+          </Card>
+        </>
+      ),
+    },
+    {
+      key: 'cost',
+      label: '成本分析',
+      icon: <DollarOutlined />,
+      children: (
+        <>
+          <Row gutter={16} style={{ marginBottom: 16 }}>
+            <Col span={8}>
+              <Card style={cardStyle}>
+                <Statistic
+                  title="30 天总调用"
+                  value={totalCalls}
+                  valueStyle={{ fontWeight: 600 }}
+                />
+              </Card>
+            </Col>
+            <Col span={8}>
+              <Card style={cardStyle}>
+                <Statistic
+                  title="30 天总 Token"
+                  value={totalTokens}
+                  valueStyle={{ fontWeight: 600 }}
+                />
+              </Card>
+            </Col>
+            <Col span={8}>
+              <Card style={cardStyle}>
+                <Statistic
+                  title="30 天成本"
+                  value={(totalCost / 100).toFixed(2)}
+                  prefix="¥"
+                  valueStyle={{ fontWeight: 600 }}
+                />
+              </Card>
+            </Col>
+          </Row>
+
+          <Card style={cardStyle} title="日用量明细（近 30 天）">
+            <Table
+              dataSource={dailyUsage}
+              rowKey={(r) => `${r.date}-${r.feature}`}
+              size="small"
+              pagination={{ pageSize: 15 }}
+              columns={[
+                { title: '日期', dataIndex: 'date', width: 120 },
+                { title: '功能', dataIndex: 'feature', width: 150 },
+                { title: '调用次数', dataIndex: 'total_calls', width: 100 },
+                {
+                  title: '输入 Token',
+                  dataIndex: 'total_input_tokens',
+                  width: 120,
+                  render: (v: number) => v.toLocaleString(),
+                },
+                {
+                  title: '输出 Token',
+                  dataIndex: 'total_output_tokens',
+                  width: 120,
+                  render: (v: number) => v.toLocaleString(),
+                },
+                {
+                  title: '成本',
+                  dataIndex: 'total_cost_cents',
+                  width: 100,
+                  render: (v: number) => `¥${(v / 100).toFixed(2)}`,
+                },
+              ]}
+            />
+          </Card>
+        </>
+      ),
+    },
+    {
+      key: 'flags',
+      label: '功能开关',
+      icon: <SettingOutlined />,
+      children: (
+        <Card style={cardStyle} title="AI 功能开关">
+          {flags.length === 0 ? (
+            <Empty description="暂无功能开关配置" />
+          ) : (
+            <Table
+              dataSource={flags}
+              rowKey="feature"
+              size="small"
+              pagination={false}
+              columns={[
+                {
+                  title: '功能',
+                  dataIndex: 'feature',
+                  render: (f: string) => FEATURE_LABELS[f] || f,
+                },
+                {
+                  title: '状态',
+                  dataIndex: 'is_enabled',
+                  width: 200,
+                  render: (enabled: boolean, record: FeatureFlag) =>
+                    adminFlags.hasPermission ? (
+                      <Switch
+                        checked={enabled}
+                        onChange={(checked) => handleToggleFlag(record.feature, checked)}
+                        checkedChildren="启用"
+                        unCheckedChildren="禁用"
+                      />
+                    ) : (
+                      <Tag color={enabled ? 'green' : 'default'}>
+                        {enabled ? '启用' : '禁用'}
+                      </Tag>
+                    ),
+                },
+              ]}
+            />
+          )}
+        </Card>
+      ),
+    },
+  ];
+
   return (
     <div>
       <div className="erp-page-header">
         <div>
-          <h4>AI 用量统计</h4>
-          <div className="erp-page-subtitle">查看 AI 分析服务的使用情况</div>
+          <h4>AI 管理看板</h4>
+          <div className="erp-page-subtitle">AI 功能用量统计、成本分析与功能管理</div>
         </div>
       </div>
 
-      <Row gutter={16} style={{ marginBottom: 16 }}>
-        <Col span={8}>
-          <Card style={cardStyle}>
-            <Statistic
-              title="总分析次数"
-              value={overview?.total_count ?? 0}
-              prefix={<ThunderboltOutlined style={{ color: '#1890ff' }} />}
-              valueStyle={{ fontWeight: 600 }}
-            />
-          </Card>
-        </Col>
-        <Col span={8}>
-          <Card style={cardStyle}>
-            <Statistic
-              title="分析类型数"
-              value={types.length}
-              prefix={<ExperimentOutlined style={{ color: '#52c41a' }} />}
-              valueStyle={{ fontWeight: 600 }}
-            />
-          </Card>
-        </Col>
-        <Col span={8}>
-          <Card style={cardStyle}>
-            <Statistic
-              title="本月分析"
-              value={totalCount}
-              prefix={<ThunderboltOutlined style={{ color: '#fa8c16' }} />}
-              valueStyle={{ fontWeight: 600 }}
-            />
-          </Card>
-        </Col>
-      </Row>
-
-      <Card style={cardStyle} title="分析类型分布">
-        {types.length === 0 ? (
-          <Empty description="暂无分析数据" />
-        ) : (
-          <Row gutter={[16, 16]}>
-            {types.map((t) => {
-              const pct = totalCount > 0 ? Math.round((t.count / totalCount) * 100) : 0;
-              const label = ANALYSIS_TYPE_MAP[t.analysis_type] || t.analysis_type;
-              const color = TYPE_COLORS[t.analysis_type] || '#1890ff';
-              return (
-                <Col span={6} key={t.analysis_type}>
-                  <div
-                    style={{
-                      padding: 16,
-                      borderRadius: 8,
-                      background: isDark ? '#0f172a' : '#f8fafc',
-                      textAlign: 'center',
-                    }}
-                  >
-                    <div style={{ fontSize: 28, fontWeight: 700, color }}>{t.count}</div>
-                    <div style={{ fontSize: 13, color: isDark ? '#94a3b8' : '#475569', marginTop: 4 }}>
-                      {label}
-                    </div>
-                    <div style={{ fontSize: 12, color: isDark ? '#475569' : '#94a3b8', marginTop: 4 }}>
-                      {pct}%
-                    </div>
-                  </div>
-                </Col>
-              );
-            })}
-          </Row>
-        )}
-      </Card>
+      <Tabs
+        defaultActiveKey="overview"
+        items={tabItems}
+        onChange={(key) => {
+          if (key === 'cost') fetchDailyUsage();
+          if (key === 'flags') fetchFlags();
+        }}
+      />
     </div>
   );
 }

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

@@ -832,6 +832,107 @@ where
     Ok(Json(ApiResponse::ok(estimate)))
 }
 
+// === AI 管理看板 ===
+
+#[derive(Debug, Deserialize, utoipa::IntoParams)]
+pub struct DailyUsageQuery {
+    pub start_date: String,
+    pub end_date: String,
+}
+
+#[utoipa::path(
+    get,
+    path = "/ai/admin/daily-usage",
+    params(DailyUsageQuery),
+    responses((status = 200, description = "按日聚合用量")),
+    tag = "AI 管理",
+    security(("bearer_auth" = [])),
+)]
+pub async fn admin_daily_usage<S>(
+    State(state): State<AiState>,
+    Extension(ctx): Extension<TenantContext>,
+    Query(params): Query<DailyUsageQuery>,
+) -> Result<Json<ApiResponse<serde_json::Value>>, erp_core::error::AppError>
+where
+    AiState: FromRef<S>,
+    S: Clone + Send + Sync + 'static,
+{
+    require_permission(&ctx, "ai.admin.dashboard")?;
+
+    let start_date = chrono::NaiveDate::parse_from_str(&params.start_date, "%Y-%m-%d")
+        .map_err(|_| erp_core::error::AppError::Validation("start_date 格式错误".into()))?;
+    let end_date = chrono::NaiveDate::parse_from_str(&params.end_date, "%Y-%m-%d")
+        .map_err(|_| erp_core::error::AppError::Validation("end_date 格式错误".into()))?;
+
+    let rows = state
+        .usage
+        .get_daily_usage(ctx.tenant_id, start_date, end_date)
+        .await?;
+
+    Ok(Json(ApiResponse::ok(serde_json::json!({
+        "data": rows,
+        "start_date": params.start_date,
+        "end_date": params.end_date,
+    }))))
+}
+
+#[utoipa::path(
+    get,
+    path = "/ai/admin/flags",
+    responses((status = 200, description = "功能开关列表")),
+    tag = "AI 管理",
+    security(("bearer_auth" = [])),
+)]
+pub async fn admin_list_flags<S>(
+    State(state): State<AiState>,
+    Extension(ctx): Extension<TenantContext>,
+) -> Result<
+    Json<ApiResponse<Vec<crate::service::feature_flag_service::FeatureFlag>>>,
+    erp_core::error::AppError,
+>
+where
+    AiState: FromRef<S>,
+    S: Clone + Send + Sync + 'static,
+{
+    require_permission(&ctx, "ai.admin.flags")?;
+    let flags = state.feature_flags.get_all(ctx.tenant_id).await?;
+    Ok(Json(ApiResponse::ok(flags)))
+}
+
+#[derive(Debug, Deserialize, utoipa::ToSchema)]
+pub struct UpdateFlagBody {
+    pub feature: String,
+    pub enabled: bool,
+}
+
+#[utoipa::path(
+    post,
+    path = "/ai/admin/flags",
+    request_body = UpdateFlagBody,
+    responses((status = 200, description = "更新功能开关")),
+    tag = "AI 管理",
+    security(("bearer_auth" = [])),
+)]
+pub async fn admin_update_flag<S>(
+    State(state): State<AiState>,
+    Extension(ctx): Extension<TenantContext>,
+    Json(body): Json<UpdateFlagBody>,
+) -> Result<Json<ApiResponse<serde_json::Value>>, erp_core::error::AppError>
+where
+    AiState: FromRef<S>,
+    S: Clone + Send + Sync + 'static,
+{
+    require_permission(&ctx, "ai.admin.flags")?;
+    state
+        .feature_flags
+        .set_enabled(ctx.tenant_id, &body.feature, body.enabled, ctx.user_id)
+        .await?;
+    Ok(Json(ApiResponse::ok(serde_json::json!({
+        "feature": body.feature,
+        "enabled": body.enabled,
+    }))))
+}
+
 // === SSE 流构建辅助 ===
 
 fn build_sse_stream(

crates/erp-ai/src/module.rs

@@ -494,6 +494,19 @@ impl AiModule {
                 "/ai/health-summary",
                 axum::routing::get(crate::handler::insight_handler::health_summary),
             )
+            // AI 管理看板
+            .route(
+                "/ai/admin/daily-usage",
+                axum::routing::get(crate::handler::admin_daily_usage),
+            )
+            .route(
+                "/ai/admin/flags",
+                axum::routing::get(crate::handler::admin_list_flags),
+            )
+            .route(
+                "/ai/admin/flags",
+                axum::routing::post(crate::handler::admin_update_flag),
+            )
             .route(
                 "/ai/budget/status",
                 axum::routing::get(crate::handler::budget_status),

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

@@ -5,6 +5,7 @@ use uuid::Uuid;
 
 use crate::entity::ai_analysis;
 use crate::entity::ai_usage;
+use crate::entity::ai_usage_daily;
 use crate::error::AiResult;
 
 pub struct UsageService {
@@ -76,6 +77,85 @@ impl UsageService {
             .await?;
         Ok(result)
     }
+
+    /// 按日期范围查询日聚合用量
+    pub async fn get_daily_usage(
+        &self,
+        tenant_id: Uuid,
+        start_date: chrono::NaiveDate,
+        end_date: chrono::NaiveDate,
+    ) -> AiResult<Vec<DailyUsageRow>> {
+        let rows = ai_usage_daily::Entity::find()
+            .filter(ai_usage_daily::Column::TenantId.eq(tenant_id))
+            .filter(ai_usage_daily::Column::Date.gte(start_date))
+            .filter(ai_usage_daily::Column::Date.lte(end_date))
+            .all(&self.db)
+            .await?;
+        Ok(rows
+            .into_iter()
+            .map(|r| DailyUsageRow {
+                date: r.date,
+                feature: r.feature,
+                provider: r.provider,
+                model: r.model,
+                total_calls: r.total_calls,
+                total_input_tokens: r.total_input_tokens,
+                total_output_tokens: r.total_output_tokens,
+                total_cost_cents: r.total_cost_cents,
+            })
+            .collect())
+    }
+
+    /// 聚合指定日期的用量到日聚合表（由定时任务调用）
+    pub async fn aggregate_daily(&self, tenant_id: Uuid, date: chrono::NaiveDate) -> AiResult<()> {
+        let date_start = date.and_hms_opt(0, 0, 0).unwrap_or_default();
+        let date_end = date_start + chrono::Duration::days(1);
+
+        // 从 ai_usage 按分析类型聚合
+        #[derive(Debug, FromQueryResult)]
+        struct AggRow {
+            analysis_type: String,
+            total_calls: i64,
+            total_input_tokens: i64,
+            total_output_tokens: i64,
+            total_cost_cents: i64,
+        }
+
+        let rows: Vec<AggRow> = ai_usage::Entity::find()
+            .filter(ai_usage::Column::TenantId.eq(tenant_id))
+            .filter(ai_usage::Column::CreatedAt.gte(date_start))
+            .filter(ai_usage::Column::CreatedAt.lt(date_end))
+            .select_only()
+            .column(ai_usage::Column::AnalysisType)
+            .column_as(ai_usage::Column::Id.count(), "total_calls")
+            .column_as(ai_usage::Column::InputTokens.sum(), "total_input_tokens")
+            .column_as(ai_usage::Column::OutputTokens.sum(), "total_output_tokens")
+            .column_as(ai_usage::Column::CostCents.sum(), "total_cost_cents")
+            .group_by(ai_usage::Column::AnalysisType)
+            .into_model::<AggRow>()
+            .all(&self.db)
+            .await?;
+
+        for row in &rows {
+            let id = Uuid::now_v7();
+            let active = ai_usage_daily::ActiveModel {
+                id: Set(id),
+                tenant_id: Set(tenant_id),
+                date: Set(date),
+                feature: Set(row.analysis_type.clone()),
+                provider: Set("aggregated".into()),
+                model: Set("mixed".into()),
+                total_calls: Set(row.total_calls as i32),
+                total_input_tokens: Set(row.total_input_tokens),
+                total_output_tokens: Set(row.total_output_tokens),
+                total_cost_cents: Set(row.total_cost_cents),
+                created_at: Set(chrono::Utc::now()),
+            };
+            active.insert(&self.db).await?;
+        }
+
+        Ok(())
+    }
 }
 
 #[derive(Debug, FromQueryResult)]
@@ -88,3 +168,15 @@ pub struct TypeCount {
     pub analysis_type: String,
     pub count: i64,
 }
+
+#[derive(Debug, Clone, serde::Serialize)]
+pub struct DailyUsageRow {
+    pub date: chrono::NaiveDate,
+    pub feature: String,
+    pub provider: String,
+    pub model: String,
+    pub total_calls: i32,
+    pub total_input_tokens: i64,
+    pub total_output_tokens: i64,
+    pub total_cost_cents: i64,
+}