feat: Add MIRI check to CI pipeline

[dotandev]

This PR adds a step to the GitHub Actions CI pipeline to run MIRI (Undefined Behavior detector) on the codebase.

Changes

Modified .github/workflows/reusable-build.yml:
Added rustup component add miri.
Added Miri Check step to the Linux build job.
Configured to run cargo miri test --workspace with exclusions for crates that use LLVM bindings (FFI) which are currently unsupported by MIRI:

inference-wasm-codegen (depends on inkwell)
inference (depends on wasm-codegen)
inference-cli (depends on inference)
infs (app)
inference-lsp (uses inkwell)
inference-ide & inference-ide-db (excluded to reduce noise/compile time, focusing on core logic first)

Verification

Verified MIRI installation command locally.
CI pipeline will now report any UB found in the core crates (AST, Type Checker, etc).

[SurfingBowser]

Please confirm you have read this contributor guide and followed the instructions. @dotandev