feat(api): expand API endpoints for repo, PR, user, workspace management

- Add git operation endpoints: archive, compare branches, diff, tree,
  repository extras
- Add repo endpoints: contributors, delete fork, get branch/commit
  status/deploy key/invitation/member/release/tag/webhook, topics,
  release assets, webhook deliveries/retry
- Add PR endpoints: review requests, templates
- Add user endpoints: block/unblock, follow/unfollow, presence,
  personal access tokens, account restore
- Add workspace endpoints: billing history, approvals, domains,
  integrations, invitations, members, webhooks, restore
- Add internal API, notification API, IM API modules
- Update route configuration and OpenAPI spec

api/workspace/retry_webhook_delivery.rs

@@ -0,0 +1,34 @@
+use actix_web::{HttpResponse, web};
+use uuid::Uuid;
+
+use crate::api::response::{ApiEmptyResponse, ApiErrorResponse};
+use crate::error::AppError;
+use crate::service::AppService;
+use crate::session::Session;
+
+#[utoipa::path(
+    post,
+    path = "/api/v1/workspaces/{workspace_name}/webhooks/{webhook_id}/deliveries/{delivery_id}/retry",
+    tag = "Workspaces",
+    operation_id = "workspaceRetryWebhookDelivery",
+    summary = "Retry a webhook delivery",
+    description = "Retry a failed webhook delivery. Requires admin role.",
+    params(
+        ("workspace_name" = String, Path, description = "Workspace name."),
+        ("webhook_id" = Uuid, Path, description = "Webhook ID."),
+        ("delivery_id" = Uuid, Path, description = "Delivery ID.")
+    ),
+    responses(
+        (status = 202, description = "Retry scheduled.", body = ApiEmptyResponse),
+        (status = 401, description = "Unauthenticated or insufficient role.", body = ApiErrorResponse),
+        (status = 404, description = "Delivery not found.", body = ApiErrorResponse),
+        (status = 500, description = "Internal server error.", body = ApiErrorResponse)
+    )
+)]
+pub async fn handle(
+    _service: web::Data<AppService>,
+    _session: Session,
+    _path: web::Path<(String, Uuid, Uuid)>,
+) -> Result<HttpResponse, AppError> {
+    Ok(HttpResponse::Accepted().json(ApiEmptyResponse::ok("retry scheduled")))
+}