feat(auth): data_scope 行级数据权限 — DataScope 枚举 + 中间件加载

- TenantContext 新增 permission_data_scopes: HashMap<String, DataScope>
- DataScope 枚举: All/SelfOnly/Department/DepartmentTree
- JWT 中间件查询 role_permissions.data_scope 填充到上下文
- rbac::get_data_scope() 供 service 层按权限获取数据范围
- 默认 All，完全向后兼容现有行为

crates/erp-auth/src/middleware/jwt_auth.rs

@@ -5,7 +5,7 @@ use axum::response::Response;
 use erp_core::error::AppError;
 use erp_core::request_info::REQUEST_INFO;
 use erp_core::request_info::RequestInfo;
-use erp_core::types::TenantContext;
+use erp_core::types::{DataScope, TenantContext};
 
 use crate::service::token_service::TokenService;
 
@@ -63,6 +63,12 @@ pub async fn jwt_auth_middleware_fn(
         None => vec![],
     };
 
+    // 查询每个权限的数据范围
+    let permission_data_scopes = match &db {
+        Some(conn) => fetch_permission_data_scopes(claims.sub, claims.tid, conn).await,
+        None => std::collections::HashMap::new(),
+    };
+
     // 提取请求来源信息（IP + User-Agent），用于审计日志
     let request_info = RequestInfo::from_headers(req.headers());
 
@@ -72,6 +78,7 @@ pub async fn jwt_auth_middleware_fn(
         roles: claims.roles,
         permissions: claims.permissions,
         department_ids,
+        permission_data_scopes,
     };
 
     // Reconstruct the request with the TenantContext injected into extensions.
@@ -105,3 +112,58 @@ async fn fetch_user_department_ids(
             vec![]
         })
 }
+
+/// 查询用户每个权限的数据范围（从 role_permissions 表）
+async fn fetch_permission_data_scopes(
+    user_id: uuid::Uuid,
+    tenant_id: uuid::Uuid,
+    db: &sea_orm::DatabaseConnection,
+) -> std::collections::HashMap<String, DataScope> {
+    use sea_orm::ConnectionTrait;
+
+    let sql = r#"
+        SELECT p.code, MIN(
+            CASE rp.data_scope
+                WHEN 'all' THEN 0
+                WHEN 'department_tree' THEN 1
+                WHEN 'department' THEN 2
+                WHEN 'self' THEN 3
+                ELSE 0
+            END
+        ) AS scope_rank,
+        MIN(rp.data_scope) AS data_scope
+        FROM user_roles ur
+        JOIN role_permissions rp ON ur.role_id = rp.role_id AND ur.tenant_id = rp.tenant_id
+        JOIN permissions p ON rp.permission_id = p.id
+        WHERE ur.user_id = $1
+          AND ur.tenant_id = $2
+          AND ur.deleted_at IS NULL
+          AND rp.deleted_at IS NULL
+        GROUP BY p.code
+    "#;
+
+    let stmt = sea_orm::Statement::from_sql_and_values(
+        sea_orm::DatabaseBackend::Postgres,
+        sql,
+        [user_id.into(), tenant_id.into()],
+    );
+
+    match db.query_all(stmt).await {
+        Ok(rows) => {
+            let mut scopes = std::collections::HashMap::new();
+            for row in rows {
+                if let (Ok(code), Ok(scope)) = (
+                    row.try_get_by_index::<String>(0),
+                    row.try_get_by_index::<String>(2),
+                ) {
+                    scopes.insert(code, DataScope::from_str(&scope));
+                }
+            }
+            scopes
+        }
+        Err(e) => {
+            tracing::warn!(error = %e, "查询权限数据范围失败，默认全部 All");
+            std::collections::HashMap::new()
+        }
+    }
+}