feat(agent): agent playground — turn inspector, HITL dock, and tool I/O fidelity - #5054

    5 files  ±0     75 suites  ±0   3s ⏱️ -1s
1 282 tests ±0  1 282 ✅ ±0  0 💤 ±0  0 ❌ ±0 
1 284 runs  ±0  1 284 ✅ ±0  0 💤 ±0  0 ❌ ±0 

Results for commit 8ab3070. ± Comparison against earlier commit 3253f42.