feat: repair-POS integration, receipt formats, manager overrides, price adjustments

- Add thermal/full-page receipt format toggle (per-device, localStorage)
- Full-page receipt uses clean invoice layout matching repair PDF style
- Settings page reorganized into tabbed sections (Store, Locations, Modules, Receipt, POS Security, Advanced)
- Manager override system: configurable PIN prompt for void, refund, discount, cash in/out
- Discount threshold setting: require manager approval above X%
- Consumable product type: tracked for internal job costing, excluded from POS search, receipts, and customer-facing totals
- Repair line item dialog: product picker dropdown for parts/consumables from inventory
- Repair → POS checkout: load ready-for-pickup tickets into repair_payment transactions with proper tax categories (labor=service, parts=goods)
- Transaction completion auto-updates repair ticket status to picked_up
- POS Repairs dialog with Pickup and New Intake tabs, customer account lookup
- Inline price adjustment on cart items: % off, $ off, or set price with live preview
- Order-level discount button with same three input modes
- Backend: migration 0043 (consumable enum + is_consumable flag), createFromRepairTicket service, ready-for-pickup endpoint
- Fix: backend dev script uses --env-file for turbo compatibility

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

packages/admin/src/components/pos/pos-item-panel.tsx

@@ -10,6 +10,7 @@ import { Skeleton } from '@/components/ui/skeleton'
 import { Search, ScanBarcode, Wrench, PenLine, ClipboardList } from 'lucide-react'
 import { toast } from 'sonner'
 import { POSTransactionsDialog } from './pos-transactions-dialog'
+import { POSRepairDialog } from './pos-repair-dialog'
 
 interface POSItemPanelProps {
   transaction: Transaction | null
@@ -21,6 +22,7 @@ export function POSItemPanel({ transaction: _transaction }: POSItemPanelProps) {
   const [search, setSearch] = useState('')
   const [customOpen, setCustomOpen] = useState(false)
   const [txnDialogOpen, setTxnDialogOpen] = useState(false)
+  const [repairOpen, setRepairOpen] = useState(false)
   const [customDesc, setCustomDesc] = useState('')
   const [customPrice, setCustomPrice] = useState('')
   const [customQty, setCustomQty] = useState('1')
@@ -200,7 +202,7 @@ export function POSItemPanel({ transaction: _transaction }: POSItemPanelProps) {
         <Button
           variant="outline"
           className="flex-1 h-11 text-sm gap-2"
-          disabled
+          onClick={() => setRepairOpen(true)}
         >
           <Wrench className="h-4 w-4" />
           Repairs
@@ -277,6 +279,7 @@ export function POSItemPanel({ transaction: _transaction }: POSItemPanelProps) {
 
       {/* Transactions dialog */}
       <POSTransactionsDialog open={txnDialogOpen} onOpenChange={setTxnDialogOpen} />
+      <POSRepairDialog open={repairOpen} onOpenChange={setRepairOpen} />
     </div>
   )
 }