feat(flows): 新增流程编辑器基础功能与相关组件

feat(backend): 添加流程模型与服务支持
feat(frontend): 实现流程编辑器UI与交互
feat(assets): 添加流程节点图标资源
feat(plugins): 实现上下文菜单和运行时插件
feat(components): 新增基础节点和侧边栏组件
feat(routes): 添加流程相关路由配置
feat(models): 创建流程和运行日志数据模型
feat(services): 实现流程服务层逻辑
feat(migration): 添加流程相关数据库迁移
feat(config): 更新前端配置支持流程编辑器
feat(utils): 增强axios错误处理和工具函数

backend/src/models/flow.rs

@@ -0,0 +1,21 @@
+use sea_orm::entity::prelude::*;
+
+#[derive(Clone, Debug, PartialEq, DeriveEntityModel)]
+#[sea_orm(table_name = "flows")]
+pub struct Model {
+    #[sea_orm(primary_key)]
+    pub id: String,
+    pub name: Option<String>,
+    pub yaml: Option<String>,
+    pub design_json: Option<String>,
+    // 新增：流程编号与备注
+    pub code: Option<String>,
+    pub remark: Option<String>,
+    pub created_at: DateTimeWithTimeZone,
+    pub updated_at: DateTimeWithTimeZone,
+}
+
+#[derive(Copy, Clone, Debug, EnumIter, DeriveRelation)]
+pub enum Relation {}
+
+impl ActiveModelBehavior for ActiveModel {}

backend/src/models/flow_run_log.rs

@@ -0,0 +1,25 @@
+use sea_orm::entity::prelude::*;
+
+#[derive(Clone, Debug, PartialEq, Eq, DeriveEntityModel, serde::Serialize, serde::Deserialize)]
+#[sea_orm(table_name = "flow_run_logs")]
+pub struct Model {
+    #[sea_orm(primary_key)]
+    pub id: i64,
+    pub flow_id: String,
+    // 新增：流程编码（可空）
+    pub flow_code: Option<String>,
+    pub input: Option<String>,
+    pub output: Option<String>,
+    pub ok: bool,
+    pub logs: Option<String>,
+    pub user_id: Option<i64>,
+    pub username: Option<String>,
+    pub started_at: DateTimeWithTimeZone,
+    pub duration_ms: i64,
+    pub created_at: DateTimeWithTimeZone,
+}
+
+#[derive(Copy, Clone, Debug, EnumIter, DeriveRelation)]
+pub enum Relation {}
+
+impl ActiveModelBehavior for ActiveModel {}

backend/src/models/mod.rs

@@ -9,4 +9,6 @@ pub mod user_department;
 pub mod request_log;
 // 新增岗位与用户岗位关联模型
 pub mod position;
-pub mod user_position;
+pub mod user_position;
+pub mod flow;
+pub mod flow_run_log;