fix(ci): main green — rustfmt + clippy + build

[KooshaPari]

Main CI is red on bounded, mechanical checks. Root-cause and fix so the workflow goes green:

• Format (rustfmt): run cargo fmt --all and commit.
• Clippy (stable): fix all cargo clippy --all-targets --all-features -- -D warnings.
• Build: make cargo build --release succeed.

Constraints: do NOT weaken/skip tests, do NOT delete asserts, do NOT touch unrelated files, no secrets. Open one focused PR to main. Iterate locally to zero errors+warnings before pushing.

[KooshaPari]

Closing — main is confirmed green (rustfmt/clippy/build all passing, verified this session). This issue is resolved in practice.