[Good First Issue]: align ci.yml config validation with current config["apis"] schema

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## Welcome to New Grad Jobs! 🎓 This template creates a **Good First Issue** — a small, guided task that helps new

contributors learn the codebase and contribution workflow. **Good First Issues are pre-approved by the maintainer.** A contributor can claim it

immediately by commenting `/assign`. --- ### 🆕 Newcomer Friendly This is a **Good First Issue** — a guided, well-scoped task designed for contributors

who are new to this repository. #### What you'll do

• ✅ Read a small part of the code