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Implement atomic activity ingestion with schema validation and commit tracking
Verified signatureFEATURES: - Atomic row additions using temp file + rename pattern - Schema validation (v1.0) with required fields and valid value checks - Request ID generation for tracking - ISO 8601 timestamp generation - Full error handling with custom exceptions - File locking for concurrent access safety - Operation logging for audit trail - Commit hash generation for versioning - Comprehensive test suite with 5 test cases VERSION CONTROL: - Schema version: 1.0 - Supports rollback via git history - All operations logged with request_id and timestamp - Commit hashes enable change tracking USAGE: - Run directly: python activity_ingestion.py (runs tests) - Import: from activity_ingestion import atomic_append_activity This implementation ensures data integrity and provides full audit trail for production use.3a67095
