added transport field

Author: kevalmahajan

mcpgateway/admin.py

@@ -755,6 +755,7 @@ async def admin_add_gateway(request: Request, db: Session = Depends(get_db), use
         name=form["name"],
         url=form["url"],
         description=form.get("description"),
+        transport=form.get("transport","SSE"),
         auth_type=form.get("auth_type", ""),
         auth_username=form.get("auth_username", ""),
         auth_password=form.get("auth_password", ""),
@@ -806,6 +807,7 @@ async def admin_edit_gateway(
         name=form["name"],
         url=form["url"],
         description=form.get("description"),
+        transport=form.get("transport","SSE"),
         auth_type=form.get("auth_type", None),
         auth_username=form.get("auth_username", None),
         auth_password=form.get("auth_password", None),