Adds the canonical E157 collection-event identifiers in the 1570+ block:
1570 ModuleProcessStateChange (generic; fired on any transition)
1571 ModuleNotExecuting
1572 ModuleGeneralExecuting
1573 ModuleStepExecuting
1574 ModuleStepCompleted
Server installs a state-change handler that fires both the generic
CEID and the state-specific one for each transition. Hosts that
prefer "wake me on any module change and I'll fan it out myself" can
subscribe to only the generic CEID; hosts that want narrower
notifications subscribe to specific states.
Closes Tranche H — E157 Module Process Tracking end-to-end (FSM +
Store + CEIDs + server emission).
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
