v0.116.0

Breaking

• remove the provider methods that predate the typed contracts (#376)
• remove the fal alias for seedance (#374)
• remove the built-in agent and the LLM adapters only it used (#373)
• remove Veo now that Google shut it down, and stop builds from swapping in another provider (#372)

Fixed

• count breaking type!: commits as unreleased work in release-status (#377)
• generate thumbnail prints "URL: undefined", reports $0, and bypasses the image contract (#375)

Maintenance

• group breaking commits under "Breaking" in the changelog (#378)