I will reproduce and fix one clearly scoped bug in an existing JavaScript or TypeScript codebase, then deliver the tested patch with a concise change note. Includes React, Vue, Node.js, APIs, build errors, and a focused regression test. Scope is up to 2 hours of engineering work and 300 lines changed. Please provide repository access, reproduction steps, expected behavior, and the test or run command. Work begins after payment protection is active. New features, redesigns, production credential handling, and emergency on-call work are outside this service.