BUG 739 Fixed handling of invalid query params

BUG 739 Fixed handling of invalid query params: a task in repo2rlenv-pr-runtime (Harbor dataset). Title: BUG MethodNotAllowedHandler does not work for subrouter with different routes

The task

**Title:** [BUG] MethodNotAllowedHandler does not work for subrouter with different routes

Part of FineEnvs/repo2rlenv-pr-runtime.