Update mobile purchase flow and locale formatting

docs/mobile-api-blueprint.md

@@ -46,8 +46,7 @@ Semua role mobile memakai:
 
 Tujuan:
 - scan lot
-- buat receipt
-- generate lot
+- submit purchase yang otomatis membuat receipt dan lot
 - buat penyesuaian stok
 - kirim / selesaikan washing
 
@@ -57,11 +56,9 @@ Endpoint:
 - `GET /api/v1/mobile/lots`
 - `GET /api/v1/mobile/lots/:id`
 - `GET /api/v1/mobile/lots/scan?code=...`
-- `GET /api/v1/mobile/receipts/bootstrap`
-- `GET /api/v1/mobile/receipts`
-- `POST /api/v1/mobile/receipts`
-- `GET /api/v1/mobile/receipts/:id`
-- `POST /api/v1/mobile/receipts/:id/generate-lots`
+- `GET /api/v1/mobile/purchases`
+- `GET /api/v1/mobile/purchases/:id`
+- `POST /api/v1/mobile/purchases/:id/submit`
 - `GET /api/v1/mobile/stock-adjustments/bootstrap`
 - `GET /api/v1/mobile/stock-adjustments`
 - `POST /api/v1/mobile/stock-adjustments`
@@ -185,8 +182,8 @@ Layar minimum:
 2. Dashboard ringkas
 3. Scan lot
 4. Detail lot
-5. Receipt baru
-6. Detail receipt + generate lot
+5. Daftar pembelian siap submit
+6. Submit pembelian yang otomatis membuat receipt + lot
 7. Penyesuaian stok
 8. Daftar washing
 9. Buat washing