Update Rust toolchain and dependencies

[alshdavid]

Toolchain

No change needed — already at latest stable 1.99.0.

Dependencies Updated

Dependency	Old Version	New Version
rustls (transitive)	0.23.45	0.23.46
swc_core (transitive)	82.1.0	82.1.1
swc_ecma_parser (transitive)	46.1.0	46.1.1
swc_ecma_transforms_base (transitive)	50.0.1	50.0.2

Code Changes

No code changes were required. Only Cargo.lock was updated.

Direct Dependencies

All direct dependencies in Cargo.toml are already at their latest compatible versions. No updates were needed.