fix: Use AsyncSession in crud log and find_flow

[cbornet]

Use AsyncSession in crud log

[codspeed-hq]

CodSpeed Performance Report

Merging #4691 will degrade performances by 37.38%

_{Comparing cbornet:async-session-crud-log (52863e3) with main (a0acf39)}

Summary

⚡ 1 improvements
❌ 2 regressions
✅ 12 untouched benchmarks

⚠️ Please fix the performance issues or acknowledge them on CodSpeed.

Benchmarks breakdown

	Benchmark	main	cbornet:async-session-crud-log	Change
❌	test_invalid_run_with_input_type_chat	27 ms	32.6 ms	-17.1%
⚡	test_successful_run_with_input_type_any	298.1 ms	247.2 ms	+20.59%
❌	test_successful_run_with_output_type_any	141.1 ms	225.3 ms	-37.38%