Add accounts UI with list, create, edit, detail tabs for all sub-entities

Accounts list with paginated table, search, sort. Account detail page with
tabs for members, payment methods, tax exemptions, and processor links.
All sub-entities have create/edit dialogs and delete actions. Forms use
shared Zod schemas via react-hook-form.

packages/admin/src/components/accounts/processor-link-form.tsx

@@ -0,0 +1,63 @@
+import { useForm } from 'react-hook-form'
+import { zodResolver } from '@hookform/resolvers/zod'
+import { ProcessorLinkCreateSchema } from '@forte/shared/schemas'
+import type { ProcessorLinkCreateInput } from '@forte/shared/schemas'
+import { Button } from '@/components/ui/button'
+import { Input } from '@/components/ui/input'
+import { Label } from '@/components/ui/label'
+import { Select, SelectContent, SelectItem, SelectTrigger, SelectValue } from '@/components/ui/select'
+
+interface ProcessorLinkFormProps {
+  accountId: string
+  onSubmit: (data: Record<string, unknown>) => void
+  loading?: boolean
+}
+
+export function ProcessorLinkForm({ accountId, onSubmit, loading }: ProcessorLinkFormProps) {
+  const {
+    register,
+    handleSubmit,
+    setValue,
+    watch,
+    formState: { errors },
+  } = useForm<ProcessorLinkCreateInput>({
+    resolver: zodResolver(ProcessorLinkCreateSchema),
+    defaultValues: {
+      accountId,
+      processor: 'stripe',
+      processorCustomerId: '',
+    },
+  })
+
+  const processor = watch('processor')
+
+  return (
+    <form onSubmit={handleSubmit(onSubmit)} className="space-y-4">
+      <div className="space-y-2">
+        <Label>Processor</Label>
+        <Select
+          value={processor}
+          onValueChange={(v) => setValue('processor', v as 'stripe' | 'global_payments')}
+        >
+          <SelectTrigger>
+            <SelectValue />
+          </SelectTrigger>
+          <SelectContent>
+            <SelectItem value="stripe">Stripe</SelectItem>
+            <SelectItem value="global_payments">Global Payments</SelectItem>
+          </SelectContent>
+        </Select>
+      </div>
+      <div className="space-y-2">
+        <Label htmlFor="customerId">Customer ID *</Label>
+        <Input id="customerId" {...register('processorCustomerId')} placeholder="cus_..." />
+        {errors.processorCustomerId && (
+          <p className="text-sm text-destructive">{errors.processorCustomerId.message}</p>
+        )}
+      </div>
+      <Button type="submit" disabled={loading}>
+        {loading ? 'Saving...' : 'Add Processor Link'}
+      </Button>
+    </form>
+  )
+}