Description of Changes

• Updated the MetaHuman snap method to support both legacy _drv naming and the newer MetaHuman standard that omits this suffix.
• Fixed a namespace conflict between the mgear.core.utils and mgear.shifter.utils modules to prevent import collisions.
• Added a helper function that retrieves the active mGear guide directly from the scene, simplifying tool interactions and reducing redundant lookups.

Testing Done

• Verified that the MetaHuman snap correctly detects and aligns guides with both legacy _drv and new naming conventions.
• Confirmed that the namespace fix eliminates the utils import conflict when both core and shifter modules are loaded.
• Tested the new helper function across multiple scenes with different guide configurations to ensure correct guide detection.
• Ran mGear Shifter build and MetaHuman integration workflows successfully to confirm overall stability.

Related Issue(s)

#536