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/issue/create_comment.rs

@@ -0,0 +1,66 @@
+use actix_web::{HttpResponse, web};
+use serde::Deserialize;
+use utoipa::IntoParams;
+
+use crate::api::response::{ApiErrorResponse, ApiResponse};
+use crate::error::AppError;
+use crate::models::issues::IssueComment;
+use crate::service::AppService;
+use crate::service::issues::comments::CreateCommentParams;
+use crate::session::Session;
+
+#[derive(Debug, Deserialize, IntoParams)]
+pub struct PathParams {
+    pub workspace_name: String,
+    pub number: i64,
+}
+
+/// Create a comment on an issue
+///
+/// Adds a new comment to an issue. Users with read access can comment unless the issue is locked
+/// (in which case only users with write access can comment).
+///
+/// Parameters:
+/// - body: Comment body in markdown format (required)
+/// - reply_to_comment_id: ID of parent comment for threaded replies (optional)
+///
+/// Effects:
+/// - Comment is created and attached to the issue
+/// - Commenter is automatically subscribed to the issue
+/// - Issue comment count is incremented
+///
+/// Returns the created comment with metadata.
+#[utoipa::path(
+    post,
+    path = "/api/v1/workspaces/{workspace_name}/issues/{number}/comments",
+    tag = "Issues",
+    operation_id = "issueCreateComment",
+    params(PathParams),
+    request_body(content = CreateCommentParams, description = "Comment creation parameters", content_type = "application/json"),
+    responses(
+        (status = 201, description = "Comment created successfully.", body = ApiResponse<IssueComment>),
+        (status = 400, description = "Invalid parameters: empty body or issue is locked", body = ApiErrorResponse),
+        (status = 401, description = "Authentication required or session expired", body = ApiErrorResponse),
+        (status = 403, description = "Insufficient permissions (issue locked and user lacks write access)", body = ApiErrorResponse),
+        (status = 404, description = "Workspace or issue not found", body = ApiErrorResponse),
+        (status = 500, description = "Internal server error", body = ApiErrorResponse),
+    ),
+    security(("session_cookie" = []))
+)]
+pub async fn create_comment(
+    service: web::Data<AppService>,
+    session: Session,
+    path: web::Path<PathParams>,
+    params: web::Json<CreateCommentParams>,
+) -> Result<HttpResponse, AppError> {
+    let comment = service
+        .issue
+        .issue_create_comment(
+            &session,
+            &path.workspace_name,
+            path.number,
+            params.into_inner(),
+        )
+        .await?;
+    Ok(HttpResponse::Created().json(ApiResponse::new(comment)))
+}