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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>