# T1.1.1 — Add rustdoc on `MediaHeaderV2` fields

**Status:** Pending Review
**Agent:** Kimi Code CLI
**Started:** 2026-05-11T07:17Z
**Completed:** 2026-05-11T07:18Z
**Commit:** see git log
**PRD:** ../PRD-wire-format-v2.md

## What I changed

- `crates/wzp-proto/src/packet.rs:165-175` — replaced `//` inline comments with `///` rustdoc on all 9 public fields of `MediaHeaderV2`

## Why these choices

Follow-up from T1.1 review: coding standard #9 requires `///` on public struct fields. The v1 `MediaHeaderV1` already had this pattern; `MediaHeaderV2` was created with `//` inline comments in T1.1. This follow-up brings it into compliance.

## Deviations from the task spec

None.

## Verification output

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

```bash
$ cargo build -p wzp-proto
    Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.17s
```

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

```bash
$ 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)
- [ ] No backward-incompat surprises
- [ ] Tests cover the new behavior
- [ ] Approved