Add `maxRetries`, `retryDelayMs`, and `retryBackoff` to task config.
When a task fails and retries remain, the orchestrator waits with
exponential backoff and re-runs the task with a fresh agent conversation.
A `task_retry` event is emitted via `onProgress` for observability.
Cascade failure only occurs after all retries are exhausted.
Closes#30
When `outputSchema` is set on AgentConfig, the agent's final text output
is parsed as JSON, validated against the Zod schema, and exposed via
`result.structured`. On validation failure a single retry with error
feedback is attempted automatically.
Closes#29
- 5 test files, 61 test cases covering TaskQueue, SharedMemory,
ToolExecutor, ToolRegistry, and Semaphore
- GitHub Actions CI running lint + test on Node 18/20/22
- CONTRIBUTING.md with setup, commands, and PR workflow
- Pull request template with checklist