Validate and prepare a MicroPythonOS App for upystore release after packaging, testing, and deployment. Use when Codex needs to read package_result.json, app_test_result.json, and deploy_result.json together, compare the App version against upystore public listings, assemble store metadata such as screenshots, short/long descriptions, hardware tags, and release notes, produce publish_result.json, and guide the user to upload manually. Does not upload, login, package MPK files, deploy devices, flash firmware, or repair app code.
