Fixed Grok 4, multi-tool calls, and more

This release fixes for some bugs and regressisions found since v0.13.0, including

• Restore xAI Grok 4 functionality (charmbracelet/catwalk#92 by @andreynering)
• Restore llama.cpp + gpt-oss functionality (#1314, charmbracelet/fantasy#50 by @andreynering)
• Fixed issue that could show when doing multiple tool calls at once (charmbracelet/fantasy#48 by @kujtimiihoxha)
• Ensure that the system_prompt_prefix setting is always used (#1311 by @kujtimiihoxha)

Keep crushing! 🚀

Changelog

Fixed

• 68fcf9f: fix: update fantasy and catwalk with fixes (@andreynering)
• fd5f830: fix(test): normalize file separator to make vcr cassette match (@andreynering)
• d32831e: fix(test): normalize output of download tool to make tests pass on windows (@andreynering)
• 019b7a2: fix(tools): fix handling of abs paths on windows (@andreynering)
• e159237: fix: add prefix if exists in all calls (#1311) (@kujtimiihoxha)

Other stuff

• 311605d: chore: update fantasy (#1316) (@kujtimiihoxha)
• 092ff22: fix(agent-test): instruct the model to not output the file timestamp (@andreynering)
• 133f698: refactor: make test code a little bit cleaner (@andreynering)

wget 'https://github.com/charmbracelet/crush/releases/download/v0.13.3/checksums.txt'

cosign verify-blob \
  --certificate-identity 'https://github.com/charmbracelet/meta/.github/workflows/goreleaser.yml@refs/heads/main' \
  --certificate-oidc-issuer 'https://token.actions.githubusercontent.com' \
  --cert 'https://github.com/charmbracelet/crush/releases/download/v0.13.3/checksums.txt.pem' \
  --signature 'https://github.com/charmbracelet/crush/releases/download/v0.13.3/checksums.txt.sig' \
  ./checksums.txt

sha256sum --ignore-missing -c checksums.txt

Thoughts? Questions? We love hearing from you. Feel free to reach out on X, Discord, Slack, The Fediverse, Bluesky.