v0.4.1

This release focuses on stabilizing the billing system, improving Stripe checkout reliability, strengthening webhook handling, and ensuring correct monetary data handling across subscriptions.

Improvements

Checkout Flow

• Improved Stripe checkout flow with proper PaymentIntent handling
• Avoids unnecessary confirmation calls for already processed payments
• Better handling of client secrets and payment states

Webhook Reliability

• Enhanced webhook logging with replay-safe payload storage
• Improved retry logic with ability to reconstruct events
• Clearer separation between signature verification and payload validation errors

Monetary Data Integrity

• Standardized all billing amounts to integer (minor units / cents)
• Eliminates float/decimal inconsistencies in pricing and subscriptions
• Prevents undercharging/overcharging issues

Subscription Consistency

• Improved logic for determining the current active subscription
• Better normalization of subscription state across the system

Free Plan Support

• Added proper handling for free tier subscriptions
• Avoids invalid Stripe price creation for zero-value plans
• Improved frontend flow for free plan activation

Authorization & Policies

• Fixed inconsistencies in panel access authorization
• Improved policy handling for user access checks

Frontend Stability

• Safer handling of API responses (prevents JSON parsing errors)

• Improved error handling for:

  • expired sessions
  • CSRF issues
  • invalid responses

Breaking / Important Notes

• Billing amounts are now stored as integer cents
  • Existing installations must ensure proper data migration
• Stripe price creation now expects valid minor-unit values
• Free plans are handled separately from paid Stripe flows

Summary

• 36 files updated
• +1240 / -270 lines changed
• Multiple fixes across billing, frontend, and policies

Full Changelog: v0.4.0...v0.4.1