feat(coding-plans): rename BytePlus plans to Enterprise and add ZDR copy

[jeanduplessis]

Summary

Rename BytePlus Coding Plan offerings to Enterprise and surface Zero Data Retention on the plan cards.

Why this change is needed

BytePlus plans need to read as Enterprise offerings, with an explicit statement that prompts are not retained and data is not used for training.

How this is addressed

• Catalog names are now Enterprise Coding Plan Lite and Enterprise Coding Plan Pro.
• Both cards include Zero Data Retention: does not retain prompts or train on your data.
• Offer-card titles wrap so the longer names stay readable.

Human Verification

• Specs updated to match the Enterprise names and ZDR copy.
• Targeted web tests passed: 59 tests across catalog, router, Slack summary, and billing renewal suites.
• Browser-checked the Coding Plans tab after fake login.

Manual testing

• Opened /subscriptions#coding-plans locally.
• Confirmed both BytePlus cards show the Enterprise names, the ZDR bullet, and wrapped titles instead of truncation.

Reviewer Notes

Human Reviewer Flags

• .specs/coding-plans.md and .specs/subscription-center.md now require the Enterprise names and ZDR bullet.
• Card titles still render as BytePlus Enterprise Coding Plan Lite/Pro because the UI prefixes the provider name.
• Title wrapping applies to all AvailableProductCard offerings, not only BytePlus.

[kilo-code-bot]

Code Review Summary

Status: No Issues Found | Recommendation: Merge

Files Reviewed (8 files)

• .specs/coding-plans.md
• .specs/subscription-center.md
• apps/web/src/components/subscriptions/AvailableProductCard.tsx
• apps/web/src/lib/coding-plans/billing-lifecycle-cron.test.ts
• apps/web/src/lib/coding-plans/index.test.ts
• apps/web/src/lib/coding-plans/inventory-slack-summary.test.ts
• apps/web/src/lib/coding-plans/pricing.ts
• apps/web/src/routers/coding-plans-router.test.ts

Reviewed the BytePlus Enterprise rename and ZDR copy end to end: the catalog change in pricing.ts propagates correctly because every surface (offer cards, subscription detail, cancellation modal, purchase/renewal transaction descriptions, Slack inventory summary, admin console) composes ${providerName} ${name} dynamically — no stale hardcoded Coding Plan Lite/Pro references remain. Renewal idempotency keys on credit_category uniqueness, not the transaction description, so the description rename is safe for existing subscriptions. The AvailableProductCard title-wrapping change (text-pretty on Tailwind 4.2.4, min-w-0, items-start, badge shrink-0) is sound and intentionally applies to all offerings. Spec updates are consistent with the code, including the new rule 1.9 and correctly ordered changelog entries. Test expectations match the new catalog exactly.

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_{Reviewed by kimi-k3 · Input: 47.2K · Output: 9.6K · Cached: 734.5K}

_{Review guidance: REVIEW.md from base branch main}