Update benchmark plots for 4764ccb

Author: Essoz

docs/assets/images/overhead_macro.png

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+# Performance Benchmarks
+
+Latest benchmark results (updated: 2025-07-27 07:48:31 UTC, commit: 4764ccb)
+
+## Instrumentation Overhead - Micro Benchmarks
+![Micro Benchmark Results](assets/images/overhead_micro.png)
+
+## End-to-End Performance Impact
+![E2E Benchmark Results](assets/images/overhead_macro.png)
+
+These benchmarks are automatically generated from the [TrainCheck-Benchmarks](https://github.com/OrderLab/TrainCheck-Benchmarks) repository.