Update warehouse.py

[Satish-Medar]

🛠 Fix: Prevent EpisodeInitializationError during reset in Warehouse environment This change improves the robustness of the _move_arms_if_necessary method in the PhasedBoxCarry task by catching and gracefully handling failures in the arm_opener.open_arms_for_prop call.

💥 Problem During episode resets, initialization could fail with the following error:

csharp Copy Edit EpisodeInitializationError(RuntimeError: Failed to remove contact with prop after 100 iterations...) This was due to physical contact between props and pedestals that couldn't be resolved when trying to open arms around them.

✅ Solution Catch the RuntimeError raised by open_arms_for_prop.

Log a detailed warning with the prop’s model name and position.

Retry once by lifting the prop slightly upward (1 cm), then attempting again.

If retry fails, skip that entity instead of crashing the entire episode.

🔒 Benefit Avoids full environment crashes due to bad initial contacts.

Allows training to continue even when minor placement issues occur.

Provides better logging for debugging and scene analysis.

📎 Notes This change only affects initialization robustness. It does not alter reward logic, physics, or agent behavior.

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