[Long-term] Add performance benchmarking suite

[Mossaka]

Context

From CI/CD Pipeline Gap Assessment (Discussion #227)

Description

Create a performance benchmarking suite to track and prevent performance regressions over time.

Acceptance Criteria

• Define key performance metrics to track (e.g., startup time, memory usage, throughput)
• Implement benchmark tests
• Set up automated benchmark execution in CI
• Track benchmark results over time
• Alert on significant performance regressions

Estimated Effort

To be determined (quarterly goal)

Related

• Discussion CI/CD Pipeline and Integration Tests - Gap Assessment #227