Add optional customIntervals parameter to GetSyncStatusAsync to allow
per-pipeline interval overrides instead of hardcoded defaults. This
enables tables like MisData to use longer sync intervals (e.g., 70 days)
while other tables use standard intervals.
Key changes:
- IDataUpdateRepository.GetSyncStatusAsync now accepts an optional
Dictionary<string, int> for custom intervals keyed by "TableName_UpdateType"
- GetExpectedInterval and IsOverdue made public static for testing and reuse
- Added GetDefaultInterval method for accessing default values
- Updated DataSyncHealthCheck to use new signature
- Added comprehensive unit tests for custom interval behavior
Joseph Doherty