Implement Long-Running Stress Tests

Design and implement stress testing scenarios to validate the system's stability and performance under sustained load over extended periods. Create a test harness that can generate continuous transaction load for days, simulating realistic usage patterns with multiple concurrent clients submitting transactions at varying rates. Monitor system metrics including memory usage, CPU utilization, database growth, synchronization lag, and transaction success rates throughout the test duration. Identify and document any resource leaks, performance degradation, or stability issues that emerge during long-running tests. Establish baseline performance metrics and use stress testing to validate that optimizations improve system behavior under load.

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**Quarter:** Q2

Start by mapping the transaction-load entry points and the available system-metric collection before designing the harness. Define sustained multi-client load, monitoring coverage, baseline metrics, and success criteria for stability, resource use, synchronization lag, and transaction success rates; document any leaks or degradation found.

Written by the indexing model from the issue text.