bindings.ts picks up the library-exclusion commands and types from tauri-specta.
The matrix regenerates because validation.ts and its test are gone — the doc
link checker caught the stale references, which is the first time that gate has
paid for itself on a generated artifact rather than a hand-written link.
Also drops exclusions::is_excluded: a wrapper over is_excluded_by that only a
test called, while the trait impls hoist the snapshot themselves. The test now
calls the same path production does.