feat(perms): drop dead document export permissions; seed the 12 survivors via migration

offers.export/orders.export/invoices.export gated nothing on the backend (PDF
routes enforce *.view); they only toggled frontend buttons and showed dead
role checkboxes. Migration deletes them (+ role grants) and idempotently seeds
the 12 enforced doc perms (offers/orders/invoices x view/create/edit/delete) +
admin grant, so a fresh prod DB has them (closes the seed-only drift gap).
Route reverts to orders.view; the 8 frontend *.export checks now use *.view.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

src/admin/pages/InvoiceDetail.tsx

@@ -1147,7 +1147,7 @@ export default function InvoiceDetail() {
               </Box>
             </Box>
             <Box sx={headerActionsSx}>
-              {hasPermission("invoices.export") && (
+              {hasPermission("invoices.view") && (
                 <Button
                   onClick={() => handleViewPdf(invoice.language || "cs")}
                   variant="outlined"
@@ -1690,7 +1690,7 @@ export default function InvoiceDetail() {
             </Box>
           </Box>
           <Box sx={headerActionsSx}>
-            {isEdit && invoice && hasPermission("invoices.export") && (
+            {isEdit && invoice && hasPermission("invoices.view") && (
               <Button
                 onClick={() => handleViewPdf(invoice.language || "cs")}
                 variant="outlined"

src/admin/pages/Invoices.tsx

@@ -599,7 +599,7 @@ export default function Invoices() {
           >
             {inv.status === "paid" ? ViewIcon : EditIcon}
           </IconButton>
-          {hasPermission("invoices.export") && (
+          {hasPermission("invoices.view") && (
             <IconButton
               size="small"
               onClick={() => handlePdf(inv)}

src/admin/pages/IssuedOrderDetail.tsx

@@ -649,7 +649,7 @@ export default function IssuedOrderDetail() {
 
   // Form is editable only in create mode or while draft/sent.
   const editable = !isEdit || form.status === "draft" || form.status === "sent";
-  const canExport = hasPermission("orders.export");
+  const canExport = hasPermission("orders.view");
 
   // ─── Totals (live) ───
   const totals = useMemo(() => {

src/admin/pages/IssuedOrders.tsx

@@ -261,7 +261,7 @@ export default function IssuedOrders({ month, year }: IssuedOrdersProps) {
           >
             {ViewIcon}
           </IconButton>
-          {hasPermission("orders.export") && (
+          {hasPermission("orders.view") && (
             <IconButton
               size="small"
               onClick={() => handleExportPdf(o)}
@@ -356,7 +356,7 @@ export default function IssuedOrders({ month, year }: IssuedOrdersProps) {
                 title="Zatím žádné vydané objednávky."
                 description={
                   hasPermission("orders.create")
-                    ? "Vytvořte první tlačítkem „Vytvořit objednávku vydanou“."
+                    ? "Vytvořte první tlačítkem „Vytvořit objednávku."
                     : undefined
                 }
               />

src/admin/pages/OfferDetail.tsx

@@ -1081,7 +1081,7 @@ export default function OfferDetail() {
             </Box>
           </Box>
           <Box sx={headerActionsSx}>
-            {isEdit && hasPermission("offers.export") && (
+            {isEdit && hasPermission("offers.view") && (
               <Button
                 onClick={handlePdf}
                 variant="outlined"

src/admin/pages/Offers.tsx

@@ -695,7 +695,7 @@ export default function Offers() {
                 </IconButton>
               )
             )}
-            {hasPermission("offers.export") && (
+            {hasPermission("offers.view") && (
               <IconButton
                 size="small"
                 onClick={() => handlePdf(q)}

src/admin/pages/OrderDetail.tsx

@@ -434,7 +434,7 @@ export default function OrderDetail() {
                 </Button>
               )
             )}
-            {hasPermission("orders.export") && (
+            {hasPermission("orders.view") && (
               <Button
                 variant="outlined"
                 color="inherit"