feat: Phase Q Q2 pre-registration entry schema -- pre-commitment lock before wet-lab (closes PRE- reference from Q1 PEP) - #852

Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: actions/checkout@v4, actions/setup-python@v5. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/