feat: initial commit — asaas-checkout template white-label

Template genérico de checkout com ASAAS, parametrizado via env vars.
Inclui fluxo completo: checkout → pedido → polling → webhook → admin.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

components/data-table-pagination.tsx

@@ -0,0 +1,85 @@
+"use client"
+
+import { ChevronLeftIcon, ChevronRightIcon, DoubleArrowLeftIcon, DoubleArrowRightIcon } from "@radix-ui/react-icons"
+import type { Table } from "@tanstack/react-table"
+
+import { Button } from "@/components/ui/button"
+import { Select, SelectContent, SelectItem, SelectTrigger, SelectValue } from "@/components/ui/select"
+
+interface DataTablePaginationProps<TData> {
+  table: Table<TData>
+}
+
+export function DataTablePagination<TData>({ table }: DataTablePaginationProps<TData>) {
+  return (
+    <div className="flex items-center justify-between px-2">
+      <div className="flex-1 text-sm text-muted-foreground">
+        {table.getFilteredSelectedRowModel().rows.length} de {table.getFilteredRowModel().rows.length} linha(s)
+        selecionada(s).
+      </div>
+      <div className="flex items-center space-x-6 lg:space-x-8">
+        <div className="flex items-center space-x-2">
+          <p className="text-sm font-medium">Linhas por página</p>
+          <Select
+            value={`${table.getState().pagination.pageSize}`}
+            onValueChange={(value) => {
+              table.setPageSize(Number(value))
+            }}
+          >
+            <SelectTrigger className="h-8 w-[70px]">
+              <SelectValue placeholder={table.getState().pagination.pageSize} />
+            </SelectTrigger>
+            <SelectContent side="top">
+              {[10, 20, 30, 40, 50].map((pageSize) => (
+                <SelectItem key={pageSize} value={`${pageSize}`}>
+                  {pageSize}
+                </SelectItem>
+              ))}
+            </SelectContent>
+          </Select>
+        </div>
+        <div className="flex w-[100px] items-center justify-center text-sm font-medium">
+          Página {table.getState().pagination.pageIndex + 1} de {table.getPageCount()}
+        </div>
+        <div className="flex items-center space-x-2">
+          <Button
+            variant="outline"
+            className="hidden h-8 w-8 p-0 lg:flex"
+            onClick={() => table.setPageIndex(0)}
+            disabled={!table.getCanPreviousPage()}
+          >
+            <span className="sr-only">Ir para primeira página</span>
+            <DoubleArrowLeftIcon className="h-4 w-4" />
+          </Button>
+          <Button
+            variant="outline"
+            className="h-8 w-8 p-0"
+            onClick={() => table.previousPage()}
+            disabled={!table.getCanPreviousPage()}
+          >
+            <span className="sr-only">Ir para página anterior</span>
+            <ChevronLeftIcon className="h-4 w-4" />
+          </Button>
+          <Button
+            variant="outline"
+            className="h-8 w-8 p-0"
+            onClick={() => table.nextPage()}
+            disabled={!table.getCanNextPage()}
+          >
+            <span className="sr-only">Ir para próxima página</span>
+            <ChevronRightIcon className="h-4 w-4" />
+          </Button>
+          <Button
+            variant="outline"
+            className="hidden h-8 w-8 p-0 lg:flex"
+            onClick={() => table.setPageIndex(table.getPageCount() - 1)}
+            disabled={!table.getCanNextPage()}
+          >
+            <span className="sr-only">Ir para última página</span>
+            <DoubleArrowRightIcon className="h-4 w-4" />
+          </Button>
+        </div>
+      </div>
+    </div>
+  )
+}