moq-net: add Lite05Wip version variant (unadvertised)

[kixelated]

Summary

• Adds a work-in-progress Lite05Wip variant to lite::Version (Rust) and DRAFT_05_WIP to the JS lite Version so future feature work can branch on moq-lite-05.
• Reserves wire code 0xff0dad05 and the ALPN string moq-lite-05-wip in both Rust and JS, plus name/FromStr/from_code/from_alpn/alpn round-trips.
• Updates the exhaustive SetupVersion::from_version match in rs/moq-net/src/setup.rs to put Lite05Wip in Unsupported (same as Lite03/Lite04: no legacy SETUP message).
• Adds ALPN_LITE_05_WIP arms in rs/moq-net/src/{server,client}.rs so explicit opt-in works end-to-end if someone bumps the ALPN list.

Why

We want to start landing moq-lite-05 features (gated match version arms in encoders/decoders) without exposing the version on the wire yet. Keeping the variant in the codebase but excluding it from ALPNS and Versions::all() lets that work compile and run in tests without changing default server/client behavior.

Not advertised

Deliberately omitted (per the "don't advertise as ALPN" intent):

• pub const ALPNS in rs/moq-net/src/version.rs (the QUIC/TLS ALPN list)
• Versions::all() (the default version set used for SETUP/ALPN negotiation)
• The WebTransport protocols list in js/net/src/connection/connect.ts

A doc comment on ALPNS calls out the omission so the next reader doesn't "fix" it.

All existing per-version match arms in rs/moq-net/src/lite/ and js/net/src/lite/ already use _/default: fallthroughs that target the newest behavior, so Lite05Wip naturally inherits Lite04-style probe/goaway/hop chain semantics until divergence starts.

Test plan

• cargo test -p moq-net — 327 passed
• cargo test -p moq-native — 51 passed (ALPN integration tests still negotiate the existing versions, no new lite-05 path leaks into defaults)
• just check — green (rustfmt, clippy -D warnings, rustdoc -D warnings, biome, JS tests)

(Written by Claude)

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ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: 8422d92c-e5c6-4019-beeb-00fc390c5bd5

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Reviewing files that changed from the base of the PR and between 31e0114 and 9157d06.

📒 Files selected for processing (1)

• rs/moq-net/src/setup.rs

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Walkthrough

This PR adds work-in-progress support for MoQ Lite Draft05 WIP version across JavaScript and Rust implementations. It introduces a new Lite05Wip enum variant and corresponding ALPN identifier "moq-lite-05-wip", implements full version conversion and parsing for the new variant across all code paths, adds ALPN negotiation branches in both client and server to recognize and initialize WIP sessions, and classifies the WIP version as unsupported in setup version mapping. The feature is opt-in and explicitly excluded from default ALPN advertisement.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly and concisely summarizes the main change: adding a Lite05Wip version variant to moq-net while keeping it unadvertised.
Description check	✅ Passed	The description is comprehensive and directly related to the changeset, explaining the purpose, implementation details, testing, and rationale for adding the unadvertised Lite05Wip variant.
Docstring Coverage	✅ Passed	Docstring coverage is 100.00% which is sufficient. The required threshold is 80.00%.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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Actionable comments posted: 1

🤖 Prompt for all review comments with AI agents

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

Inline comments:
In `@rs/moq-net/src/setup.rs`:
- Around line 79-81: In SetupVersion::from_version, replace the explicit match
arm that lists Lite03, Lite04, Lite05Wip with a forward-default arm so future
Lite variants are treated as unsupported; keep the explicit arms for Lite01 and
Lite02 and change the other arm from Version::Lite(lite::Version::Lite03 |
lite::Version::Lite04 | lite::Version::Lite05Wip) => Self::Unsupported to a
catch-all Version::Lite(_) => Self::Unsupported so unrecognized Lite variants
default to Unsupported.

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Fix all unresolved CodeRabbit comments on this PR:

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---

ℹ️ Review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: 30cb03e3-d8d8-4c29-86f8-402b49e79f05

📥 Commits

Reviewing files that changed from the base of the PR and between 23b4e4d and 31e0114.

📒 Files selected for processing (6)

• js/net/src/lite/version.ts
• rs/moq-net/src/client.rs
• rs/moq-net/src/lite/version.rs
• rs/moq-net/src/server.rs
• rs/moq-net/src/setup.rs
• rs/moq-net/src/version.rs