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

Cargo.toml

@@ -47,6 +47,8 @@ tokio-stream = "0.1"
 async-nats = "0.49"
 futures-util = "0.3"
 utoipa = { version = "5.5.0", features = ["uuid","chrono","auto_into_responses","actix_extras","decimal","macros"]}
+actix-web = { version = "4", features = ["secure-cookies"] }
+actix-multipart = "0.7"
 
 [build-dependencies]
 tonic-prost-build = "0.14.6"