Fix stale meter-count claim, Shared library reference, and test count
Update wiki for Phase 3: Account/Customer Service and Notification Service pages, re-keyed Usage Aggregation/Billing pages, real-dataset/accountId Meter Simulator update
Fix drift: update all pages for Phase 2 (Kafka) progress
Update wiki: Phase 1 complete, add Billing page
Add Meter Simulator wiki page, update Home status