Booking Notifications & Reminders Audit

Quality hardening: all 20 checks enhanced with counting/enumeration requirements, explicit thresholds, expanded pass criteria with code path quoting, detailed skip criteria with search evidence, 3+ cross-references per check. Added Anti-Sycophancy Rules section (6 rules: enumerate before concluding, quote before judging, no pass for intent, measure on pass, no conflation, skip requires evidence). N/A Rules expanded with specific dependency search criteria.