Max Weinbach4/20/2026, 10:53:54 PM

Memory leak fixes:
- Cap allMessages at 1000 in HistoryManager (preserves system message)
- Cap turns at 512 in SessionCostTracker with recalculateTotals()
- Cap feed at 2000 in SessionSnapshotProjector
- Fix cost tracker listener leak in AgentSession.dispose()
- Null manager refs in AgentSession.dispose() to aid GC
- Add 5-min idle eviction for sessionBindings with no live sinks
- Delete threadJournalWriteQueues entry after flush completes
- Delete workspaceControlStateIds when subscribers drop to zero

WebSocket backpressure:
- Add per-connection send queue (max 500) with drain flushing
- Make sendJsonRpc backpressure-aware (checks ws.send() return)
- Evict stream deltas first from queue when full
- Update dispatchJsonRpcMessage to accept optional send callback

Desktop consolidation (Phase 1):
- Add thread/hydrate endpoint (combines resume + read)
- Add cowork/workspace/bootstrap endpoint (threads + state)

Tests:
- test/server.memory.test.ts
- test/server.backpressure.test.ts

Parentc801381