submitRun

Start a run without the v1 eager lazy-getter shims.

run.start (the v1 entry point) eagerly opens a wildcard values projection so thread.output / thread.values resolve regardless of access order, and calls #ensureLifecycleTracking which opens another wildcard ["lifecycle", "input"] subscription. Both subscriptions widen #computeUnionFilter to wildcard, defeating the progressive-expansion rotation strategy.

submitRun skips those shims — callers that manage their own content subscriptions (such as StreamController) get the narrow union filter they asked for. Lifecycle / interrupt tracking is instead served by the dedicated #startLifecycleWatcher, which opens a wildcard ["lifecycle", "input"] stream alongside the narrow content pump on both SSE and WebSocket transports.