Code review on Task 2 flagged that 'Kotlin 2.3' could mislead a future
reader into bumping to 2.4.0, which has no KSP release yet. Spell out
the full versions and the KSP pairing constraint in both PROJECT.md
(Stack section) and REQUIREMENTS.md (Constraints section).
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>