Supervisor replaces maxRounds as primary stop mechanism. Every N rounds
(configurable via supervisorInterval, default 3), the engine calls a
cheap LLM to evaluate thread progress and decide continue/stop.
- New engine/supervisor.ts: runSupervisor + parseSupervisorDecisionText
- Supervisor is opt-in: no models.supervisor configured = always continue
- WorkflowConfig gains supervisorInterval (default 3, 0 to disable)
- Engine calls supervisor after each supervisorInterval rounds
- 256 tests pass, 14 new tests for supervisor logic
Refs #110
- New src/config/ folder: resolveModel(config, scene) with fallback to default
- WorkflowConfig now has providers + models instead of extract
- Delete ExtractProviderConfig, getExtractProvider uses resolveModel('extract')
- New resolve-model tests, updated existing tests
Refs #110
xiaoju