Optimize and decouple debug hook manager for modern event system

[MohabCodeX]

Summary

for #5240

• Decoupled debug info extraction to work directly with Lua function references, fully restoring all 4 event hook types without legacy dependencies.
• Added inlined presence checks to reduce the hotpath hook check to an $O(1)$ branch, ensuring zero function-call overhead during normal gameplay when no hooks are active.
• Fixed event triggering to properly mark events as cancelled and return false when aborted by a pre-event hook.
• Kept backward compatibility wrappers for server-side event handling.

Testing

• Tested with an automated test_debug_hooks.zip verifying all 4 event hook types, metadata extraction, selective handler skipping, and cancellation handling.