Account 2500 is resolved by number as the GC liability (GiftCertificatesController),
but the per-tenant seeder never created it — so tenants onboarded after the
AccountingGapsPhase2 migration had no GC liability account and gift-certificate GL
postings silently no-op'd. The default-company seeder also created 2500 as
"Long-Term Loan", mislabeling that company's GC obligations.
- SeedDataService.Accounts: seed 2500 "Gift Certificate Liability" (IsSystem)
- SeedData: seed 2500 as GC liability; move long-term loan to 2900
- EnsureSystemAccountsAsync: self-heal — rename a 2500 still named "Long-Term Loan"
(preserving user renames) and ensure a 2500 exists
- migration FixGiftCertificateLiabilityAccount: move long-term loan to 2900 where a
2500="Long-Term Loan" exists without a 2900, relabel the mislabeled 2500, and
safety-net insert a 2500 for any company lacking one
Non-destructive: no account Id/number/balance is changed (same pattern as O1).
Verified on dev: existing GC-liability rows preserved, no spurious accounts added.
All audit findings O1-O5 resolved. Build clean; 291 unit tests pass; migration applied.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>