feat(bank): expose bank-reported balance (booked + available) in UI, reconciliation, MCP and v1 API (#2118)

* feat(bank): expose bank-reported balance (booked + available) in UI, reconciliation, MCP and v1 API

The PSD2 sync has fetched the bank's reported balance for years but the
data was stranded (F7): the Bank-page source picker read a cash_accounts
column no sync ever updated (frozen at connect time), reconciliation
hard-coded external_balance to null for bank accounts, and neither MCP
nor the v1 API exposed any balance at all, so the only path to a current
bank balance was logging into the bank.

- getAccountBalance now returns booked + available from the same
  quota-limited BALANCES response (previously all but one type discarded)
- every sync (manual + cron) mirrors balance, available_balance and
  balance_updated_at into cash_accounts, fixing the stale picker
- new cash_accounts.available_balance column (additive migration)
- reconciliation bank kind: external_balance = bank-reported balance,
  plus bank_reported_* fields and fetch timestamp in the bank block;
  difference math stays movement-based and untouched
- reconciliation view shows "Saldo enligt banken ... hamtat {date}"
- MCP gnubok_list_cash_accounts returns the three balance fields; the
  cash_today prompt now reports the bank's figure instead of teaching
  agents to answer with the bookkept 19xx balance
- new GET /api/v1/companies/{companyId}/cash-accounts endpoint

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Ewu46quXgh9LSr9UwYusxm

* fix(bank): keep external_balance null for bank sign-offs; never fabricate a zero balance; guard the mirror against stale writers

Post-review fixes from the skeptic pass + CodeRabbit on PR #2118:

- external_balance stays null for the bank reconciliation kind: sign-off
  persists it into account_reconciliations and bokslutsbilagor computes
  closing - external from that row, so a today-balance stored on a
  balansdag sign-off printed a phantom warning-red differens in the
  year-end appendix. The bank-reported figure lives only in the
  timestamped bank_reported_* pair in the bank block, and only when its
  fetch timestamp exists (a balance of unknown age is suppressed).
- AccountOverview no longer falls back to today's date when the balance
  timestamp is missing; the line is omitted instead.
- getAccountBalance returns null on an empty BALANCES response instead
  of fabricating amount 0 with a fresh timestamp; sync keeps the
  previous stored value.
- updateBalancesFromSync only writes over an older-or-missing
  balance_updated_at, so an older sync run finishing later cannot move
  the mirrored balance backwards.
- The inline initial backfill (picker save) now mirrors fetched
  balances into cash_accounts too (accounts_data is deliberately not
  re-written there).
- cash_today MCP prompt mentions the gnubok_call_tool bridge for hosts
  that only see the default catalog.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Ewu46quXgh9LSr9UwYusxm

* fix(bank): express the stale-writer guard as two literal predicates for the schema guard

The .or() with a template literal pushed the no-phantom-columns
unresolvable-expression count over its ceiling. Same semantics, two
updates: one for rows with an older timestamp, one for rows with none.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Ewu46quXgh9LSr9UwYusxm

* fix(bank): rank interimBooked (ITBD) as a booked balance type before the generic fallback

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Ewu46quXgh9LSr9UwYusxm

---------

Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
This commit is contained in:
Mattsson
2026-09-01 16:16:29 +02:00
committed by GitHub
co-authored by Claude Fable 5
parent a57a8d968b
commit cd40127f0e
30 changed files with 985 additions and 28 deletions
@@ -374,4 +374,63 @@ describe('getAccountStatus', () => {
expect(s.unexplained_difference).toBe(0)
expect(s.bank).toMatchObject({ bank_transaction_total: 122288 })
})
it('exposes the bank-reported balance from cash_accounts on the bank kind (F7)', async () => {
const { supabase, enqueue } = createQueuedMockSupabase()
enqueue({
data: cashAccount(ID_A, {
balance: 125430.5,
available_balance: 123930.5,
balance_updated_at: '2026-08-20T05:12:00Z',
}),
})
bankStatusMock.mockResolvedValue(bankStatus({ difference: -46, unexplained_difference: 0 }))
enqueue({ data: { created_at: '2026-08-20T06:00:00Z' } })
const s = await getAccountStatus(supabase as never, COMPANY, bankAccountKey(ID_A), { today: '2026-08-20' })
if (!s) throw new Error('expected status')
// external_balance stays null for bank: sign-off persists it into
// account_reconciliations and bokslutsbilagor computes closing - external
// from that row, so a today-balance on a balansdag sign-off would print a
// phantom differens. The reported balance lives only in the bank block.
expect(s.external_balance).toBeNull()
expect(s.difference).toBe(-46)
expect(s.unexplained_difference).toBe(0)
expect(s.bank).toMatchObject({
bank_reported_balance: 125430.5,
bank_reported_available_balance: 123930.5,
bank_balance_updated_at: '2026-08-20T05:12:00Z',
})
})
it('leaves external_balance null on the bank kind when no balance was ever synced', async () => {
const { supabase, enqueue } = createQueuedMockSupabase()
enqueue({ data: cashAccount(ID_A, { balance: null, available_balance: null, balance_updated_at: null }) })
bankStatusMock.mockResolvedValue(bankStatus())
enqueue({ data: { created_at: '2026-08-20T06:00:00Z' } })
const s = await getAccountStatus(supabase as never, COMPANY, bankAccountKey(ID_A), { today: '2026-08-20' })
if (!s) throw new Error('expected status')
expect(s.external_balance).toBeNull()
expect(s.bank).toMatchObject({
bank_reported_balance: null,
bank_reported_available_balance: null,
bank_balance_updated_at: null,
})
})
it('suppresses a stored balance that has no timestamp (age unknown = unusable)', async () => {
const { supabase, enqueue } = createQueuedMockSupabase()
enqueue({ data: cashAccount(ID_A, { balance: 500, available_balance: 400, balance_updated_at: null }) })
bankStatusMock.mockResolvedValue(bankStatus())
enqueue({ data: { created_at: '2026-08-20T06:00:00Z' } })
const s = await getAccountStatus(supabase as never, COMPANY, bankAccountKey(ID_A), { today: '2026-08-20' })
if (!s) throw new Error('expected status')
expect(s.bank).toMatchObject({
bank_reported_balance: null,
bank_reported_available_balance: null,
bank_balance_updated_at: null,
})
})
})