1.5.2

- feat: order confirmation PDF generation with VAT support
- feat: order confirmation modal with custom item editing
- fix: attendance negative duration clamping and switchProject timing
- fix: Quill editor locked to Tahoma 14px, PDF heading sizes
- fix: invoice/offer PDF font consistency (Tahoma enforcement)
- fix: invoice alert cron improvements
- fix: NAS financials manager edge cases
- refactor: numbering service with unique sequence constraints

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

prisma/migrations/20260422_add_number_sequences_unique/migration.sql

@@ -0,0 +1,2 @@
+-- Add unique constraint on number_sequences(type, year) for atomic numbering
+ALTER TABLE number_sequences ADD UNIQUE INDEX idx_number_sequences_type_year (`type`, `year`);