Every single feature must be tested and approved by Rafael before proceeding to the next feature.

Why: Rafael wants to review and validate each feature individually to ensure quality and alignment with expectations. The acceptance checklists in the tech spec (https://docs.unitcycle.com/ai-technical-spec.html) define what "done" looks like for each feature.

How to apply: When implementing the AI roadmap, build one feature at a time (starting with 1.1 Lifecycle State Engine), deploy it, show Rafael the result, and wait for his approval before starting the next feature. Do not batch multiple features or skip ahead.