refactor: 积分系统拆分为独立 erp-points crate

- 新建 erp-points crate（8 Entity + account/product service + handler）
- 商品 CRUD 和账户管理完整实现，订单/签到/规则端点暂返回 501
- 注册到 workspace + erp-server 路由 /api/v1/points/*
- API 路径不变，前端无需修改

crates/erp-points/src/dto/points_dto.rs

@@ -0,0 +1,314 @@
+use chrono::NaiveDate;
+use erp_core::sanitize::sanitize_option;
+use serde::{Deserialize, Serialize};
+use utoipa::ToSchema;
+use uuid::Uuid;
+
+// ---------------------------------------------------------------------------
+// 积分账户
+// ---------------------------------------------------------------------------
+
+#[derive(Debug, Clone, Serialize, Deserialize, ToSchema)]
+pub struct PointsAccountResp {
+    pub id: Uuid,
+    pub patient_id: Uuid,
+    pub balance: i32,
+    pub total_earned: i32,
+    pub total_spent: i32,
+    pub total_expired: i32,
+    pub created_at: chrono::DateTime<chrono::Utc>,
+    pub updated_at: chrono::DateTime<chrono::Utc>,
+    pub version: i32,
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize, ToSchema)]
+pub struct CreateAccountReq {
+    pub patient_id: Uuid,
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize, ToSchema)]
+pub struct CheckinStatusResp {
+    pub checked_in_today: bool,
+    pub consecutive_days: i32,
+    pub next_streak_milestone: Option<i32>,
+}
+
+// ---------------------------------------------------------------------------
+// 积分流水
+// ---------------------------------------------------------------------------
+
+#[derive(Debug, Clone, Serialize, Deserialize, ToSchema)]
+pub struct PointsTransactionResp {
+    pub id: Uuid,
+    pub account_id: Uuid,
+    pub transaction_type: String,
+    pub amount: i32,
+    pub remaining_amount: i32,
+    pub status: String,
+    pub expires_at: Option<chrono::DateTime<chrono::Utc>>,
+    pub balance_after: i32,
+    pub description: Option<String>,
+    pub created_at: chrono::DateTime<chrono::Utc>,
+}
+
+// ---------------------------------------------------------------------------
+// 积分规则
+// ---------------------------------------------------------------------------
+
+#[derive(Debug, Clone, Serialize, Deserialize, ToSchema)]
+pub struct CreatePointsRuleReq {
+    pub event_type: String,
+    pub name: String,
+    pub description: Option<String>,
+    pub points_value: i32,
+    #[serde(default)]
+    pub daily_cap: i32,
+    #[serde(default)]
+    pub streak_7d_bonus: i32,
+    #[serde(default)]
+    pub streak_14d_bonus: i32,
+    #[serde(default)]
+    pub streak_30d_bonus: i32,
+}
+
+impl CreatePointsRuleReq {
+    pub fn sanitize(&mut self) {
+        self.description = sanitize_option(self.description.take());
+    }
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize, ToSchema)]
+pub struct UpdatePointsRuleReq {
+    pub name: Option<String>,
+    pub description: Option<String>,
+    pub points_value: Option<i32>,
+    pub daily_cap: Option<i32>,
+    pub streak_7d_bonus: Option<i32>,
+    pub streak_14d_bonus: Option<i32>,
+    pub streak_30d_bonus: Option<i32>,
+    pub is_active: Option<bool>,
+}
+
+impl UpdatePointsRuleReq {
+    pub fn sanitize(&mut self) {
+        self.description = sanitize_option(self.description.take());
+    }
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize, ToSchema)]
+pub struct PointsRuleResp {
+    pub id: Uuid,
+    pub event_type: String,
+    pub name: String,
+    pub description: Option<String>,
+    pub points_value: i32,
+    pub daily_cap: i32,
+    pub streak_7d_bonus: i32,
+    pub streak_14d_bonus: i32,
+    pub streak_30d_bonus: i32,
+    pub is_active: bool,
+    pub created_at: chrono::DateTime<chrono::Utc>,
+    pub updated_at: chrono::DateTime<chrono::Utc>,
+    pub version: i32,
+}
+
+// ---------------------------------------------------------------------------
+// 兑换商品
+// ---------------------------------------------------------------------------
+
+#[derive(Debug, Clone, Serialize, Deserialize, ToSchema)]
+pub struct CreatePointsProductReq {
+    pub name: String,
+    pub product_type: Option<String>,
+    pub points_cost: i32,
+    pub stock: Option<i32>,
+    pub image_url: Option<String>,
+    pub description: Option<String>,
+    pub service_config: Option<serde_json::Value>,
+    pub sort_order: Option<i32>,
+}
+
+impl CreatePointsProductReq {
+    pub fn sanitize(&mut self) {
+        self.description = sanitize_option(self.description.take());
+    }
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize, ToSchema)]
+pub struct UpdatePointsProductReq {
+    pub name: Option<String>,
+    pub product_type: Option<String>,
+    pub points_cost: Option<i32>,
+    pub stock: Option<i32>,
+    pub image_url: Option<String>,
+    pub description: Option<String>,
+    pub service_config: Option<serde_json::Value>,
+    pub is_active: Option<bool>,
+    pub sort_order: Option<i32>,
+}
+
+impl UpdatePointsProductReq {
+    pub fn sanitize(&mut self) {
+        self.description = sanitize_option(self.description.take());
+    }
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize, ToSchema)]
+pub struct PointsProductResp {
+    pub id: Uuid,
+    pub name: String,
+    pub product_type: String,
+    pub points_cost: i32,
+    pub stock: i32,
+    pub image_url: Option<String>,
+    pub description: Option<String>,
+    pub is_active: bool,
+    pub sort_order: i32,
+    pub created_at: chrono::DateTime<chrono::Utc>,
+    pub updated_at: chrono::DateTime<chrono::Utc>,
+    pub version: i32,
+}
+
+// ---------------------------------------------------------------------------
+// 兑换订单
+// ---------------------------------------------------------------------------
+
+#[derive(Debug, Clone, Serialize, Deserialize, ToSchema)]
+pub struct CreateOrderReq {
+    pub product_id: Uuid,
+    pub patient_id: Uuid,
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize, ToSchema)]
+pub struct PointsOrderResp {
+    pub id: Uuid,
+    pub patient_id: Uuid,
+    pub product_id: Uuid,
+    pub product_name: Option<String>,
+    pub points_cost: i32,
+    pub status: String,
+    pub qr_code: Option<Uuid>,
+    pub verified_by: Option<Uuid>,
+    pub verified_at: Option<chrono::DateTime<chrono::Utc>>,
+    pub expires_at: Option<chrono::DateTime<chrono::Utc>>,
+    pub notes: Option<String>,
+    pub created_at: chrono::DateTime<chrono::Utc>,
+    pub updated_at: chrono::DateTime<chrono::Utc>,
+    pub version: i32,
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize, ToSchema)]
+pub struct VerifyOrderReq {
+    pub qr_code: Uuid,
+}
+
+// ---------------------------------------------------------------------------
+// 线下活动
+// ---------------------------------------------------------------------------
+
+#[derive(Debug, Clone, Serialize, Deserialize, ToSchema)]
+pub struct CreateOfflineEventReq {
+    pub title: String,
+    pub description: Option<String>,
+    pub event_date: NaiveDate,
+    pub start_time: Option<chrono::NaiveTime>,
+    pub end_time: Option<chrono::NaiveTime>,
+    pub location: Option<String>,
+    pub points_reward: Option<i32>,
+    pub max_participants: Option<i32>,
+    pub image_url: Option<String>,
+}
+
+impl CreateOfflineEventReq {
+    pub fn sanitize(&mut self) {
+        self.description = sanitize_option(self.description.take());
+        self.location = sanitize_option(self.location.take());
+    }
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize, ToSchema)]
+pub struct UpdateOfflineEventReq {
+    pub title: Option<String>,
+    pub description: Option<String>,
+    pub event_date: Option<NaiveDate>,
+    pub start_time: Option<chrono::NaiveTime>,
+    pub end_time: Option<chrono::NaiveTime>,
+    pub location: Option<String>,
+    pub points_reward: Option<i32>,
+    pub max_participants: Option<i32>,
+    pub status: Option<String>,
+    pub image_url: Option<String>,
+}
+
+impl UpdateOfflineEventReq {
+    pub fn sanitize(&mut self) {
+        self.description = sanitize_option(self.description.take());
+        self.location = sanitize_option(self.location.take());
+    }
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize, ToSchema)]
+pub struct OfflineEventResp {
+    pub id: Uuid,
+    pub title: String,
+    pub description: Option<String>,
+    pub event_date: NaiveDate,
+    pub start_time: Option<chrono::NaiveTime>,
+    pub end_time: Option<chrono::NaiveTime>,
+    pub location: Option<String>,
+    pub points_reward: i32,
+    pub max_participants: i32,
+    pub current_participants: i32,
+    pub status: String,
+    pub image_url: Option<String>,
+    pub created_at: chrono::DateTime<chrono::Utc>,
+    pub updated_at: chrono::DateTime<chrono::Utc>,
+    pub version: i32,
+}
+
+// ---------------------------------------------------------------------------
+// 管理端：带版本号的更新/删除包装
+// ---------------------------------------------------------------------------
+
+#[derive(Debug, Clone, Serialize, Deserialize, ToSchema)]
+pub struct UpdateRuleWithVersion {
+    pub data: UpdatePointsRuleReq,
+    pub version: i32,
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize, ToSchema)]
+pub struct UpdateProductWithVersion {
+    pub data: UpdatePointsProductReq,
+    pub version: i32,
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize, ToSchema)]
+pub struct UpdateOfflineEventWithVersion {
+    pub data: UpdateOfflineEventReq,
+    pub version: i32,
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize, ToSchema)]
+pub struct AdminCheckinReq {
+    pub patient_id: Uuid,
+}
+
+// ---------------------------------------------------------------------------
+// 积分统计
+// ---------------------------------------------------------------------------
+
+#[derive(Debug, Clone, Serialize, Deserialize, ToSchema)]
+pub struct PointsStatisticsResp {
+    pub total_issued: i64,
+    pub total_spent: i64,
+    pub total_expired: i64,
+    pub active_accounts: i64,
+    pub top_earners: Vec<TopEarner>,
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize, ToSchema)]
+pub struct TopEarner {
+    pub account_id: Uuid,
+    pub patient_id: Uuid,
+    pub total_earned: i32,
+}