- Add @timesafari/polling-contracts package with comprehensive type definitions
- Implement GenericPollingRequest, PollingResult, and PollingScheduleConfig interfaces
- Add Zod schemas for StarredProjectsRequest/Response and DeepLinkParams validation
- Include calculateBackoffDelay utility with unified retry policy (exponential, linear, fixed)
- Add OutboxPressureManager for storage pressure controls and back-pressure signals
- Implement TelemetryManager with cardinality budgets and PII redaction
- Add ClockSyncManager for JWT timestamp validation and skew tolerance
- Include comprehensive unit tests with Jest snapshots and race condition testing
- Add JWT_ID_PATTERN regex for canonical JWT ID format validation
- Support idempotency with X-Idempotency-Key enforcement
- Implement watermark CAS (Compare-and-Swap) for race condition prevention
This establishes the foundation for the new generic polling system where host apps
define request/response schemas and the plugin provides robust polling logic.
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