v3.26.0 - Copilot SDK worker path
v3.26.0 - Copilot SDK worker path
BREAKING: Node.js floor raised to >=20.19.0 (from >=18.0.0 on plan-forge-mcp). BREAKING: routing.copilotSdk now defaults to prefer; opt out with routing.copilotSdk off. Cost parity vs the CLI baseline is not yet measured - treat the default as provisional.
Added: SDK-backed worker for Copilot-servable models, telemetry from typed session events (null-not-zero preserved), BYOK provider config for openai/azure/anthropic, and a guard proving the SDK path does no stdout parsing.
Fixed: spawnWorker enforces the API-provider role guard synchronously again - the async change in this phase had reduced it to a promise rejection.