Simmypeet

Write or update focused unit tests in the Pernix compiler codebase. Use when adding Rust test functions, covering a bug or feature with unit tests, or reviewing test clarity. Apply concise input, premise, and output contract comments especially to tests for pernixc_type and pernixc_solver; inspect and follow local conventions in other crates.

The general coding style for the project. This includes the general API design guide and acceptance criterias

The general approach for end to end testing in the project. Especially, when adding new features or diagnostics.

Workflow for creating and updating syntax trees in the `pernixc_syntax` crate, including the `abstract_tree` macro pattern and the arbitrary module for property-based testing.