Fix/hackathon: Improve registration CSV export and correct event search filtering #299

Job	Run time
Security & Code Quality	1m 42s
Test Suite	49s
Build & Performance	5m 1s
Database Tests	1m 5s
Enhanced Security Testing	5m 6s
Performance Monitoring (Staging)	0s
Performance Monitoring	0s
Deploy to Staging	-1s
Deploy to Production	-1s
Rollback on Failure	0s
	13m 41s

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