feat(health): 班次管理与护士分配 — Shift/PatientAssignment/HandoffLog CRUD

- 新增 3 张数据表迁移 (shifts, patient_assignments, shift_handoff_log)
- 3 个 SeaORM Entity (shift, patient_assignment, handoff_log)
- 完整 CRUD 服务层：班次管理、患者分配（含批量分配）、交接记录
- 12 个 API 端点 + health.shifts.list/manage 权限
- 班次列表含患者分配摘要 (patient_count/critical_count/attention_count)
- 乐观锁、软删除、审计日志、事件发布
- 输入验证：period/shift_status/care_level 白名单

crates/erp-health/src/entity/handoff_log.rs

@@ -0,0 +1,51 @@
+use sea_orm::entity::prelude::*;
+use serde::{Deserialize, Serialize};
+
+#[derive(Clone, Debug, PartialEq, DeriveEntityModel, Serialize, Deserialize)]
+#[serde(rename_all = "camelCase")]
+#[sea_orm(table_name = "shift_handoff_log")]
+pub struct Model {
+    #[sea_orm(primary_key, auto_increment = false)]
+    pub id: Uuid,
+    pub tenant_id: Uuid,
+    pub from_shift_id: Uuid,
+    pub to_shift_id: Uuid,
+    pub patient_id: Uuid,
+    #[sea_orm(skip_serializing_if = "Option::is_none")]
+    pub notes: Option<String>,
+    #[sea_orm(skip_serializing_if = "Option::is_none")]
+    pub pending_items: Option<serde_json::Value>,
+    pub created_at: DateTimeUtc,
+    pub updated_at: DateTimeUtc,
+    #[sea_orm(skip_serializing_if = "Option::is_none")]
+    pub created_by: Option<Uuid>,
+    #[sea_orm(skip_serializing_if = "Option::is_none")]
+    pub updated_by: Option<Uuid>,
+    #[sea_orm(skip_serializing_if = "Option::is_none")]
+    pub deleted_at: Option<DateTimeUtc>,
+    pub version: i32,
+}
+
+#[derive(Copy, Clone, Debug, EnumIter, DeriveRelation)]
+pub enum Relation {
+    #[sea_orm(
+        belongs_to = "super::shift::Entity",
+        from = "Column::FromShiftId",
+        to = "super::shift::Column::Id"
+    )]
+    FromShift,
+    #[sea_orm(
+        belongs_to = "super::shift::Entity",
+        from = "Column::ToShiftId",
+        to = "super::shift::Column::Id"
+    )]
+    ToShift,
+}
+
+impl Related<super::shift::Entity> for Entity {
+    fn to() -> RelationDef {
+        Relation::FromShift.def()
+    }
+}
+
+impl ActiveModelBehavior for ActiveModel {}

crates/erp-health/src/entity/mod.rs

@@ -46,5 +46,8 @@ pub mod vital_signs;
 pub mod care_plan;
 pub mod care_plan_item;
 pub mod care_plan_outcome;
+pub mod shift;
+pub mod patient_assignment;
+pub mod handoff_log;
 pub mod vital_signs_daily;
 pub mod vital_signs_hourly;

crates/erp-health/src/entity/patient_assignment.rs

@@ -0,0 +1,55 @@
+use sea_orm::entity::prelude::*;
+use serde::{Deserialize, Serialize};
+
+#[derive(Clone, Debug, PartialEq, DeriveEntityModel, Serialize, Deserialize)]
+#[serde(rename_all = "camelCase")]
+#[sea_orm(table_name = "patient_assignments")]
+pub struct Model {
+    #[sea_orm(primary_key, auto_increment = false)]
+    pub id: Uuid,
+    pub tenant_id: Uuid,
+    pub shift_id: Uuid,
+    pub patient_id: Uuid,
+    pub care_level: String,
+    #[sea_orm(skip_serializing_if = "Option::is_none")]
+    pub notes: Option<String>,
+    pub created_at: DateTimeUtc,
+    pub updated_at: DateTimeUtc,
+    #[sea_orm(skip_serializing_if = "Option::is_none")]
+    pub created_by: Option<Uuid>,
+    #[sea_orm(skip_serializing_if = "Option::is_none")]
+    pub updated_by: Option<Uuid>,
+    #[sea_orm(skip_serializing_if = "Option::is_none")]
+    pub deleted_at: Option<DateTimeUtc>,
+    pub version: i32,
+}
+
+#[derive(Copy, Clone, Debug, EnumIter, DeriveRelation)]
+pub enum Relation {
+    #[sea_orm(
+        belongs_to = "super::shift::Entity",
+        from = "Column::ShiftId",
+        to = "super::shift::Column::Id"
+    )]
+    Shift,
+    #[sea_orm(
+        belongs_to = "super::patient::Entity",
+        from = "Column::PatientId",
+        to = "super::patient::Column::Id"
+    )]
+    Patient,
+}
+
+impl Related<super::shift::Entity> for Entity {
+    fn to() -> RelationDef {
+        Relation::Shift.def()
+    }
+}
+
+impl Related<super::patient::Entity> for Entity {
+    fn to() -> RelationDef {
+        Relation::Patient.def()
+    }
+}
+
+impl ActiveModelBehavior for ActiveModel {}

crates/erp-health/src/entity/shift.rs

@@ -0,0 +1,53 @@
+use sea_orm::entity::prelude::*;
+use serde::{Deserialize, Serialize};
+
+#[derive(Clone, Debug, PartialEq, DeriveEntityModel, Serialize, Deserialize)]
+#[serde(rename_all = "camelCase")]
+#[sea_orm(table_name = "shifts")]
+pub struct Model {
+    #[sea_orm(primary_key, auto_increment = false)]
+    pub id: Uuid,
+    pub tenant_id: Uuid,
+    pub shift_date: chrono::NaiveDate,
+    /// 班次时段: morning / afternoon / night
+    pub period: String,
+    #[sea_orm(skip_serializing_if = "Option::is_none")]
+    pub nurse_id: Option<Uuid>,
+    /// 班次状态: scheduled / in_progress / completed
+    pub status: String,
+    #[sea_orm(skip_serializing_if = "Option::is_none")]
+    pub notes: Option<String>,
+    pub created_at: DateTimeUtc,
+    pub updated_at: DateTimeUtc,
+    #[sea_orm(skip_serializing_if = "Option::is_none")]
+    pub created_by: Option<Uuid>,
+    #[sea_orm(skip_serializing_if = "Option::is_none")]
+    pub updated_by: Option<Uuid>,
+    #[sea_orm(skip_serializing_if = "Option::is_none")]
+    pub deleted_at: Option<DateTimeUtc>,
+    pub version: i32,
+}
+
+#[derive(Copy, Clone, Debug, EnumIter, DeriveRelation)]
+pub enum Relation {
+    #[sea_orm(has_many = "super::patient_assignment::Entity")]
+    PatientAssignments,
+    #[sea_orm(has_many = "super::handoff_log::Entity")]
+    HandoffFrom,
+    #[sea_orm(has_many = "super::handoff_log::Entity")]
+    HandoffTo,
+}
+
+impl Related<super::patient_assignment::Entity> for Entity {
+    fn to() -> RelationDef {
+        Relation::PatientAssignments.def()
+    }
+}
+
+impl Related<super::handoff_log::Entity> for Entity {
+    fn to() -> RelationDef {
+        Relation::HandoffFrom.def()
+    }
+}
+
+impl ActiveModelBehavior for ActiveModel {}