[BUG] pyforge.shape() bypassing engine.py wrapper and leak raw vertex list to runtime

[EliAndrewTebcherany]

Describe the Bug

When calling pyforge.shape(), the function passes back a primitive Python list object instead of the expected EngineShape class container. This prevents users from configuring necessary vector states or calling physics methods, throwing AttributeError: 'list' object has no attribute 'get_physics'.

Root Cause Analysis

1. Namespace Overlap: The compiled C extension pyforge_core.shape is overriding the Python-layer engine.shape assignment during top-level packaging imports inside __init__.py.
2. Environment Synchronization: Editable installation states (pip install -e .) are latching onto stale virtual environment file states, caching primitive array returns rather than tracking the latest EngineShape transformations.

Fix for Tomorrow

• Clean up the duplicate return blocks inside engine.py.
• Restructure __init__.py to explicitly route shape calls through the class object instead of letting the native binary module bind the namespace globally.
• Test the full physics matrix sandboxes using a completely wiped .venv cache layer.