feat(F-163): completed feature

project/src/modules/pos/api/pos.routes.ts

@@ -23,6 +23,9 @@ export interface PosRouteDeps {
 }
 
 const idParamSchema = z.object({ id: z.string().uuid() });
+// Zod's strict UUID parser rejects the RFC nil UUID used by the seeded default
+// store. Store references accept the canonical UUID shape, including nil.
+const storeIdSchema = z.string().regex(/^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$/i);
 
 export async function registerPosRoutes(app: FastifyInstance, deps: PosRouteDeps) {
   const { pool, authenticate } = deps;
@@ -174,7 +177,7 @@ export async function registerPosRoutes(app: FastifyInstance, deps: PosRouteDeps
       const user = await authenticate(request);
       requireRole(user, 'admin');
       const body = parseJson(
-        z.object({ storeId: z.string().uuid(), name: z.string().min(1).max(100) }),
+        z.object({ storeId: storeIdSchema, name: z.string().min(1).max(100) }),
         request.body ?? {},
       );
       // Generate a short binding code (8 hex chars)

project/src/modules/pos/application/get-pos-config.ts

@@ -3,12 +3,14 @@ import type { PosPaymentMethodRepository } from '../infrastructure/pg-payment-me
 import type { PosStore } from '../domain/store.js';
 import type { PosTerminal } from '../domain/terminal.js';
 import type { PosPaymentMethod } from '../infrastructure/pg-payment-method-repository.js';
+import type { PosCashSession } from '../domain/cash-session.js';
 
 export interface PosConfig {
   store: PosStore;
   terminal: PosTerminal;
   paymentMethods: PosPaymentMethod[];
   sessionOpen: boolean;
+  session: PosCashSession | null;
 }
 
 export class GetPosConfigUseCase {
@@ -29,6 +31,6 @@ export class GetPosConfigUseCase {
       this.sessionRepo.findOpenByTerminal(terminalId),
     ]);
     await this.terminalRepo.updateLastSeen(terminalId);
-    return { store, terminal, paymentMethods, sessionOpen: !!openSession };
+    return { store, terminal, paymentMethods, sessionOpen: !!openSession, session: openSession ?? null };
   }
 }