feat: add credits for subscription

[rebelchris]

Add cores to people who complete purchases for plus subscription.
The 1 core value is stores in remoteConfig so we can easily update it.

[rebelchris]

Used the else here, otherwise it would also apply on gifters?

[capJavert]

I mean probably it should apply, let's check with product

[Copilot]

Pull Request Overview

This PR adds functionality to assign credits ("cores") to users after completing a standard subscription purchase.

• Introduces a new function assignSubscriptionCores to calculate and assign cores based on a remote configuration value.
• Updates the transaction processing flow to differentiate between gifted payments and manual subscription purchases by calling assignSubscriptionCores accordingly.

Comments suppressed due to low confidence (1)

src/routes/webhooks/paddle.ts:543

• If data.details.totals.grandTotal can include decimals, using parseInt might truncate the value and result in a loss of precision. Consider using parseFloat to handle decimal values if needed.

const total = parseInt(data.details?.totals?.grandTotal || '0');

[Copilot]

The error message 'Cores for payment is less than 0' does not accurately reflect the condition (<= 0) being checked. Consider updating it to 'Cores for payment is 0 or less' for clarity.

[capJavert]

Good work, nothing blocking, just some comments to verify.

[capJavert]

I mean probably it should apply, let's check with product

[capJavert]

Let's check with product if they want tax or no tax here?