T1.2.1 — Add rustdoc on `MediaType` variants and methods

Status: Approved Agent: Kimi Code CLI Started: 2026-05-11T07:23Z Completed: 2026-05-11T07:24Z Commit: see git log PRD: ../PRD-wire-format-v2.md

What I changed

crates/wzp-proto/src/media_type.rs:7-10 — added /// doc comments to all 4 variants (Audio, Video, Data, Control)
crates/wzp-proto/src/media_type.rs:14 — added /// doc on to_wire
crates/wzp-proto/src/media_type.rs:18 — added /// doc on from_wire

Why these choices

Follow-up from T1.2 review: coding standard #9 requires /// on all public items. Added concise one-line docs matching the examples from the task spec.

Deviations from the task spec

None.

Verification output

$ cargo doc -p wzp-proto --no-deps 2>&1 | grep -i "missing" || echo "no missing-doc warnings"
no missing-doc warnings

$ cargo clippy -p wzp-proto --all-targets -- -D warnings -W missing_docs 2>&1 | grep "media_type.rs:" | head -10
# (no output — no missing-docs in media_type.rs)

$ cargo build -p wzp-proto
    Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.49s

$ cargo test -p wzp-proto --no-fail-fast
running 112 tests
test result: ok. 112 passed; 0 failed; ...

$ cargo fmt --all -- --check
# (clean)

Test summary

Tests added: 0
Tests modified: 0
cargo clippy -p wzp-proto --all-targets -- -D warnings: pass
cargo fmt --all -- --check: pass

Risks / follow-ups

None.

Reviewer checklist (filled in by reviewer)

Code matches PRD intent
Verification output is real (re-run if suspicious) — re-ran clippy -W missing_docs | grep media_type.rs: → zero hits.
No backward-incompat surprises
Tests cover the new behavior
Approved

Reviewer notes (2026-05-11)

Approved. All 4 variants and both methods carry concise, accurate /// docs. Both Verify commands run this time. Wording on Audio ("speech / music") and Video (cross-link to PRD-video-multicodec) is exactly the right level of detail.

2.1 KiB Raw Blame History

T1.2.1 — Add rustdoc on MediaType variants and methods