Previously, adoptions were synced with hardcoded contributionPerTree=1,
resulting in contribution values like 0.7 instead of the expected 15831.9.
Now the handler fetches the actual contribution rate from ContributionRateService
based on the adoption date, storing values like:
- Personal (70%): 22617 × 70% = 15831.9
- Team Level (0.5%): 22617 × 0.5% = 113.085
- Team Bonus (2.5%): 22617 × 2.5% = 565.425
Note: Historical data may need migration to apply the correct multiplier.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>