feat(ai): Wire operational memory into router startup

Complete Phase 3 integration:

- Initialize ChangeDetector and RemediationLog in StartPatrol
- Add SetChangeDetector/SetRemediationLog to handler chain:
  Router -> AISettingsHandler -> Service -> PatrolService
- Persist change history to ai_changes.json
- Persist remediation log to ai_remediations.json
- Both use the Pulse config directory for storage

Operational memory is now fully integrated:
- Change detector tracks infrastructure changes on each patrol
- Recent changes (24h) are appended to AI context
- Remediation log ready for command execution logging

All tests passing.

internal/ai/service.go

@@ -219,6 +219,28 @@ func (s *Service) SetBaselineStore(store *BaselineStore) {
 	}
 }
 
+// SetChangeDetector sets the change detector for operational memory
+func (s *Service) SetChangeDetector(detector *ChangeDetector) {
+	s.mu.RLock()
+	patrol := s.patrolService
+	s.mu.RUnlock()
+
+	if patrol != nil {
+		patrol.SetChangeDetector(detector)
+	}
+}
+
+// SetRemediationLog sets the remediation log for tracking fix attempts
+func (s *Service) SetRemediationLog(remLog *RemediationLog) {
+	s.mu.RLock()
+	patrol := s.patrolService
+	s.mu.RUnlock()
+
+	if patrol != nil {
+		patrol.SetRemediationLog(remLog)
+	}
+}
+
 // StartPatrol starts the background patrol service
 func (s *Service) StartPatrol(ctx context.Context) {
 	s.mu.RLock()

internal/api/ai_handlers.go

@@ -105,6 +105,16 @@ func (h *AISettingsHandler) SetBaselineStore(store *ai.BaselineStore) {
 	h.aiService.SetBaselineStore(store)
 }
 
+// SetChangeDetector sets the change detector for operational memory
+func (h *AISettingsHandler) SetChangeDetector(detector *ai.ChangeDetector) {
+	h.aiService.SetChangeDetector(detector)
+}
+
+// SetRemediationLog sets the remediation log for tracking fix attempts
+func (h *AISettingsHandler) SetRemediationLog(remLog *ai.RemediationLog) {
+	h.aiService.SetRemediationLog(remLog)
+}
+
 // StopPatrol stops the background AI patrol service
 func (h *AISettingsHandler) StopPatrol() {
 	h.aiService.StopPatrol()

internal/api/router.go

@@ -1437,6 +1437,28 @@ func (r *Router) StartPatrol(ctx context.Context) {
 			}
 		}
 		
+		// Initialize operational memory (change detection and remediation logging)
+		dataDir := ""
+		if r.persistence != nil {
+			dataDir = r.persistence.DataDir()
+		}
+		
+		changeDetector := ai.NewChangeDetector(ai.ChangeDetectorConfig{
+			MaxChanges: 1000,
+			DataDir:    dataDir,
+		})
+		if changeDetector != nil {
+			r.aiSettingsHandler.SetChangeDetector(changeDetector)
+		}
+		
+		remediationLog := ai.NewRemediationLog(ai.RemediationLogConfig{
+			MaxRecords: 500,
+			DataDir:    dataDir,
+		})
+		if remediationLog != nil {
+			r.aiSettingsHandler.SetRemediationLog(remediationLog)
+		}
+
 		r.aiSettingsHandler.StartPatrol(ctx)
 	}
 }