feat(moq-net,js/net): moq-lite-06-wip announce ids

[kixelated]

Summary

Implements announce ids for moq-lite-06 (negotiated as moq-lite-06-wip, wire code 0xff0dad06), so retracting or restarting an announcement no longer repeats the broadcast path.

• Every active ANNOUNCE_BROADCAST implicitly assigns the next per-stream ordinal (a counter starting at 0). Both sides derive it from message order on the ordered stream, so the id costs zero bytes on the announce itself.
• ended (status 0) now carries only the Announce ID (~3 bytes total instead of 3 + len(path) + hops).
• restart gets its own explicit status (2) carrying the Announce ID + the replacement hop list, replacing the lite-05 duplicate-active idiom. A duplicate active for an already-active path is now a protocol violation on 06.
• Referencing an unknown or retired id is a protocol violation. Ids are never reused within a stream.
• Announces that are filtered out (reflected loops, exclude_hop) never assign an id, so their later retraction sends nothing, which the peer can't distinguish from never-announced (previously a dangling ended was sent).

Pre-06 wire behavior is unchanged; all message forms are version-gated at encode/decode.

Like previous wip drafts on dev, moq-lite-06-wip is the preferred default ALPN so the demo/tests exercise it; revisit before promoting to main.

Cross-package sync

• rs/moq-net: wire format, publisher/subscriber id bookkeeping, Version::Lite06Wip plumbing (client/server ALPN arms, Handshake::Lite05 generalized to LiteSetup).
• js/net: mirrored (Version.DRAFT_06, ALPN_06_WIP, union-shaped AnnounceBroadcast, publisher/subscriber loops, connect/accept dispatch).
• doc/concept: no change needed; it documents the announced(prefix) API surface, which is unchanged.
• Spec: drafts/draft-lcurley-moq-lite.md updated in-repo (the drafts moved into the monorepo via drafts: move IETF drafts into the monorepo with nix + just #2159). Reworked ANNOUNCE_BROADCAST section (per-status bodies), protocol-violation rules, and a lite-06 changelog entry; just drafts check passes.

Public API changes

• rs/moq-net: lite::Version gains Lite06Wip; lite::Version::has_announce_id() added; lite::AnnounceBroadcast gains EndedId { id } and Restart { id, hops } variants (breaking for exhaustive matches, hence dev).
• js/net: AnnounceBroadcast reshaped from a class into a discriminated union with encodeAnnounceBroadcast / decodeAnnounceBroadcast[Maybe] functions (breaking); Version.DRAFT_06, ALPN_06_WIP, hasAnnounceId added.

Testing

• Wire round-trip + cross-version rejection unit tests in both languages (including the 3-byte ended size check).
• New end-to-end lifecycle tests (initial set, live announce, unannounce, re-announce, restart) in rs/moq-native/tests/broadcast.rs and js/net/src/integration.test.ts, pinned to moq-lite-06-wip.
• NEWEST_LITE regression guards bumped, so the default-negotiation matrix (QUIC, WebTransport, WebSocket/qmux) now runs on 06-wip.
• just check passes.

🤖 Generated with Claude Code

[sourcery-ai]

Sorry @kixelated, you have reached your weekly rate limit of 500000 diff characters.

Please try again later or upgrade to continue using Sourcery