Summary

Remove all KCENON_WITH_MONITORING_SYSTEM compile-time guards and migrate to runtime EventBus pattern.

Parent Issue

• deps: Decouple monitoring integration via EventBus pattern #342

Depends On

• refactor: Define NetworkMetricEvent struct for EventBus-based metric publishing #343 (NetworkMetricEvent struct)
• refactor: Implement EventBus-based metric publishing in network_metrics #344 (EventBus-based metric publishing)

Files to Modify

• include/kcenon/network/config/feature_flags.h
• include/kcenon/network/integration/monitoring_integration.h
• src/integration/monitoring_integration.cpp
• include/kcenon/network/core/network_context.h
• src/core/network_context.cpp

Tasks

• Remove KCENON_WITH_MONITORING_SYSTEM definition from feature_flags.h
• Remove #if KCENON_WITH_MONITORING_SYSTEM guards from monitoring_integration.h/cpp
• Remove monitoring_system_adapter class (replaced by EventBus)
• Update network_context to always use monitoring_integration_manager
• Keep basic_monitoring as fallback for direct metric logging

Acceptance Criteria

• No KCENON_WITH_MONITORING_SYSTEM references in source files
• network_system builds without monitoring_system installed
• Metrics flow via EventBus for external consumers