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

[Copilot]

Pull request overview

This PR enhances the CI pipeline by adding MIRI (MIddleware Rust Interpreter) checks to detect undefined behavior in Rust code. MIRI is a powerful tool for finding memory safety issues and undefined behavior at runtime.

Changes:

• Added MIRI component installation to the GitHub Actions workflow
• Introduced a new "Miri Check" step that runs on Linux non-release builds
• Configured MIRI to test the workspace while excluding crates with LLVM FFI bindings (unsupported by MIRI) and IDE-related crates

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[Copilot]

The long list of --exclude flags makes this command hard to read and maintain. Consider using a multi-line format with line continuation (backslash) to improve readability, with one exclusion per line.

Suggested change

	cargo miri test --verbose --workspace --exclude inference-wasm-codegen --exclude inference --exclude inference-cli --exclude infs --exclude inference-lsp --exclude inference-ide --exclude inference-ide-db
	cargo miri test --verbose --workspace \
	--exclude inference-wasm-codegen \
	--exclude inference \
	--exclude inference-cli \
	--exclude infs \
	--exclude inference-lsp \
	--exclude inference-ide \
	--exclude inference-ide-db