feat(promo): add new encrypted promo credit category

[kilo-code-bot]

Summary

Adds a new self-service encrypted promo credit category entry. The entry provides $50 credits with the following configuration:

• Idempotent (prevents duplicate redemptions)
• Requires hold or payment method
• 1050 total redemptions allowed
• Promotion expires 2026-04-13

Important: The encrypted_credit_category field is set to PLACEHOLDER. Before merging, generate the real value with:

vercel env run -e production -- pnpm promo encrypt <CODE>

and replace the placeholder. The promo code to encrypt is referenced in the originating task.

Verification

• pnpm typecheck — passed, no errors
• pnpm lint — passed (via pre-push hook)
• pnpm format:check — passed (via pre-push hook)

Visual Changes

N/A

Reviewer Notes

The encrypted_credit_category value must be replaced with a production-encrypted value before merging. The TODO comment in the source code indicates how to generate it.

[kilo-code-bot]

CRITICAL: Placeholder ciphertext will fail to decrypt in production

encryptedSelfServicePromos is decrypted at module load via decryptPromoCode(...). Because this value is marked as generated with a non-production key, decryptWithSymmetricKey will reject it under the production CREDIT_CATEGORIES_ENCRYPTION_KEY, and any import of promoCreditCategories.ts will throw before the promo list can be used. Replace this with ciphertext generated from the production key before merge.

[kilo-code-bot]

Code Review Summary

Status: 1 Issue Found | Recommendation: Address before merge

Overview

Severity	Count
CRITICAL	1
WARNING	0
SUGGESTION	0

Fix these issues in Kilo Cloud

Issue Details (click to expand)

CRITICAL

File	Line	Issue
src/lib/promoCreditCategories.ts	690	Placeholder encrypted_credit_category is still decrypted at module load, so imports will throw until it is replaced with a production-encrypted value.

Other Observations (not in diff)

N/A

Files Reviewed (1 files)

• src/lib/promoCreditCategories.ts - 1 issue

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_{Reviewed by gpt-5.4-20260305 · 181,887 tokens}