Summary

• Replaces execa with tinyexec for the internal process wrapper.
• Keeps the existing tagged-template callback shape used by instance start commands.
• Uses args-tokenizer for command string tokenization and preserves array interpolation support.
• Adds a changeset for a patch release.

Fixes #34.

Verification

• pnpm install --lockfile-only
• pnpm install --ignore-scripts
• pnpm exec tsc --noEmit
• pnpm exec biome check src/processes/execa.ts package.json .changeset/yellow-rockets-jam.md
• git diff --check

Note

• pnpm exec vitest src/processes/execa.test.ts --run was attempted locally. The environment is missing the anvil binary, so the tests that start an Anvil process fail with: 'anvil' is not recognized as an internal or external command.