Brings the latest dev (45 commits) into v2. Conflict resolutions:
- core/src/session.ts: keep v2's Service (BusyError active-checks in
revert.stage/clear/commit, rename method + Renamed event) and add
dev's history method. v2's Renamed event flows through the merged
SessionEvent.Definitions into the OpenCodeEvent union, so it encodes
correctly on the SSE stream.
- server/src/handlers/event.ts: take dev's OpenCodeEvent encoder, which
supersedes v2's PublicEventManifest handler wiring. This also brings
dev's live event stream (allBounded + heartbeat + keepalive headers)
onto v2.
- Removed the now-orphaned public-event-manifest.ts (only self-referenced
after taking dev's handler).
- Generated client + sdk types regenerated via codegen (not hand-merged);
they pick up dev's effect SSE OpenAPI-naming patch (V2EventStream).
Unify declared instance HTTP API endpoints under typed middleware routing, including event streaming and PTY WebSocket connect handling.\n\nPreserve PTY connect compatibility by checking missing PTYs before parsing optional cursor and ticket query fields, with regression coverage.
