feat(session): integrate actix-web framework with enhanced session management

- Added actix-web and actix-multipart dependencies to Cargo.toml
- Integrated actix-web ResponseError trait for AppError handling
- Migrated session module to use actix-web request lifecycle management
- Enhanced Session struct with request-local state handling capabilities
- Implemented proper HTTP status code mapping for various error types
- Added comprehensive session middleware integration points
- Updated session state persistence and modification tracking logic
- Integrated proper JSON response formatting for error messages
- Added support for session renewal, purge, and unchanged state management

api/response.rs

@@ -0,0 +1,19 @@
+use serde::Serialize;
+
+#[derive(Debug, Serialize, utoipa::ToSchema)]
+pub struct ApiResponse<T: Serialize> {
+    pub data: T,
+}
+
+#[derive(Debug, Serialize, utoipa::ToSchema)]
+pub struct ApiEmptyResponse {
+    pub message: String,
+}
+
+#[derive(Debug, Serialize, utoipa::ToSchema)]
+pub struct ApiListResponse<T: Serialize> {
+    pub data: Vec<T>,
+    pub total: i64,
+    pub page: i64,
+    pub per_page: i64,
+}