- Moved the rig scene from `res://master_rig.tscn` to `res://scenes/stickman_rig.tscn`, preserving its UID.
- Split the `StickmanRig` controller into three components: `StickmanLocomotion`, `StickmanRagdoll`, and `StickmanActionRunner`.
- Updated the architecture to ensure `StickmanRig` acts as the public facade for the new components.
- Created a new test suite `test_phase8_rig_modularization.gd` to verify the integrity of the relocated rig and its components.
- Added checks for scene loading, component resolution, action queue delegation, and state authority.
- Added a new specification for collision bodies, detailing the implementation requirements and corrections needed in the StickmanRig, PropBlock, and SandboxStage scripts.
- Created a comprehensive test suite for collision bodies, including tests for proxy geometry, physics alignment, reaction handling, ghost collision, and stage contact routing.
- Ensured that the collision system correctly handles ragdoll transitions and maintains the integrity of existing event rules.
- Introduced new methods in StickmanRig for managing collision bodies and applying reactions based on impact direction and speed.
- Updated PropBlock to emit signals for collisions and separations, preserving the order of events for stickman and prop interactions.