feat: Validate `builtin.rs` in `sync-langs.py`#336

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zharinov merged 3 commits intomasterfrom

fix/sync-langs-builtin

Jan 13, 2026

Commits on Jan 13, 2026

feat: Add `sync-langs.py` script to automate arborium feature sync
zharinov
committed
fix: Add `toolchain: stable` input to pinned rust-toolchain action
zharinov
committed
refactor: Move lang consistency check from build.rs to Python script
zharinov
committed