Changelog

PWM interface vertical and licensing foundations

• PWM interface component complete through the full vertical, including a timing-clean UP5K-SG48 bitstream.
• Signed offline licence format v1 with Ed25519 verification.
• forge license status / activate / deactivate commands.
• Core build gate enforces target licence tier and scope before tooling.
• Target Schema v3 with per-target licensing tiers.