# F-191 — Implementer Evidence

## Feature
POS terminal and daily cash close reconciliation.

## Changes

### 1. `src/modules/pos/application/receive-rest-payment.ts`

Relaxed the terminal/session mismatch check (lines 64-77 new):
- Original check required `order.cash_session_id === input.cashSessionId` unconditionally.
- New logic (F-191): if the original session is OPEN, still requires exact match. If the original session is CLOSED, allows payment from any OPEN session on the same terminal.
- Preserves security: orders on OPEN sessions must use that session (no cross-session payment).

### 2. `src/modules/pos/api/pos.routes.ts`

Added `GET /pos/sessions/:id` route (after close route, line ~564):
- Returns full session details plus `salesCount`, `salesTotalCents`, `pendingCount`.
- Works for both OPEN and CLOSED sessions.
- POS cashier can see session summary including variance (if closed).

Enhanced `GET /pos/sessions` admin route with new filters:
- `terminalId` — filter by terminal
- `dateFrom`, `dateTo` — filter by date range (inclusive)
- `limit` increased to max 100

### Existing code (no changes needed)
- `CloseCashSessionUseCase` — already exists, already stores `varianceCents`, `closedAt`
- `PgCashSessionRepository.close()` — already stores `difference_cents`
- `POST /pos/sessions/:id/close` — already exists
- `GET /pos/sessions` (admin) — already exists, enhanced with filters
- `expected_cash_cents` maintenance — already atomic via sale/rest-payment/return

## Verification

| Check | Result |
|-------|--------|
| `npm test` | 269 passed, 96 skipped |
| `npx tsc --noEmit` | 0 errors |
| `./scripts/verify.sh` | OK |
