Without this fix, the bundler can emit multiple copies of internal-hooks
into separate chunks. registerInternalHook writes to one Map instance
while triggerInternalHook reads from another — resulting in hooks that
silently fire with zero handlers regardless of how many were registered.
Reproduce: load a hook via hooks.external.entries (loader reads one chunk),
then send a message:transcribed event (get-reply imports a different chunk).
The handler list is empty; the hook never runs.
Fix: use globalThis.__openclaw_internal_hook_handlers__ as a shared
singleton. All module copies check for and reuse the same Map, ensuring
registrations are always visible to triggers.
0d8beeb4e5