Since mise 2026.6.4 (advisory GHSA-436v-8fw5-4mj8), trust-control settings
(`yes`, `ci`, `trusted_config_paths`, `paranoid`) in non-global configs are
ignored, and every mise invocation prints a warning about this one.
Removing it changes nothing on current mise - the setting was already dead.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
- Add mise.toml (prek 0.3.2) and .pre-commit-config.yaml with hooks for
trailing whitespace, end-of-file, YAML check, merge conflicts, large files,
cargo fmt, cargo clippy (-D warnings), and unit tests
- Add prek/mise recipes to justfile
- Run cargo fmt to fix formatting issues
- Fix all clippy warnings: collapse nested if statements, derive Default for Avatar
