refactor(api): reorder imports and update code formatting across repository endpoints

- Reordered actix-web imports to standardize import order
- Reordered crate module imports to follow alphabetical ordering
- Updated function calls to use multi-line formatting for better readability
- Standardized blank lines around documentation comments
- Applied consistent formatting to response handling methods
- Normalized import organization across all repository-related API files
- Improved code consistency and maintainability through standardized formatting
- Applied formatting updates to all repository endpoint implementations

api/repo/update_member_role.rs

@@ -1,12 +1,12 @@
-use actix_web::{web, HttpResponse};
+use actix_web::{HttpResponse, web};
 use serde::Deserialize;
 use utoipa::IntoParams;
 
-use crate::api::response::{ApiResponse, ApiErrorResponse};
+use crate::api::response::{ApiErrorResponse, ApiResponse};
 use crate::error::AppError;
 use crate::models::repos::RepoMember;
-use crate::service::repo::members::UpdateRepoMemberRoleParams;
 use crate::service::AppService;
+use crate::service::repo::members::UpdateRepoMemberRoleParams;
 use crate::session::Session;
 
 #[derive(Debug, Deserialize, IntoParams)]
@@ -23,13 +23,13 @@ pub struct PathParams {
 ///
 /// Changes the access level of an existing repository member.
 /// Requires Admin role or higher in the repository.
-/// 
+///
 /// Role restrictions:
 /// - Cannot change the owner's role (use transfer_owner instead)
 /// - Cannot assign "owner" role (use transfer_owner instead)
 /// - Can only assign roles equal to or lower than your own
 /// - Valid roles: "read", "write", "admin"
-/// 
+///
 /// Returns the updated member record with new role information.
 #[utoipa::path(
     put,