Feature A — Storage quota (1 GiB per family):
- src/lib/quota.ts: enforcement library with pure functions (fully unit-tested)
and DB-bound helpers; isPaidFamily() is the single payment abstraction gate
- src/lib/format-bytes.ts: extracted formatBytes() — safe for client imports
- POST /api/upload: quota check before presigned URL issuance (HTTP 402 + reason code)
- POST /api/memories/[id]/confirm: HeadObject reconciles actual R2 size; deletes
over-quota objects and marks row failed rather than silently exceeding limit
- GET /api/storage-usage: storage info endpoint for UI meter
- src/components/StorageMeter.tsx: meter bar + StorageQuotaBanner + MemberLimitBanner
- memories/page.tsx: quota banner, FAB disabled (⊘) when exceeded, compact meter in header
- settings/page.tsx: always-visible StorageMeter + MemberLimitBanner in invite section
Feature B — Member limit (2 per family, free tier):
- invites/route.ts: replaced ad-hoc inline check with checkMemberLimit() from quota lib
Structured 403 response: { reason, currentCount, limit }
- Freeze rule: paid→free downgrade leaves all members intact; only new invites blocked
Migration:
- drizzle/0007_subscription_status.sql: ADD COLUMN subscription_status varchar(20)
- debug-migration/route.ts: step added for hot-apply without full redeploy
- src/db/schema/family.ts: subscriptionStatus field added to Drizzle schema
Tests: 44 unit tests in src/__tests__/quota.test.ts, all passing
- Pure function tests (no DB): isPaidFamily, wouldExceedQuota, isAtMemberLimit, formatBytes
- DB-bound tests (mocked @/db): getFamilyStorageUsage, checkStorageQuota,
checkMemberLimit, getStorageInfo, tenant isolation
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Mannu
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