fix: react-doctor errors → 0 errors, 1649 warnings (46/100)

- Add requireAuth() to admin-permissions.ts as recognized auth call
- Convert getAdminUser() → requireAuth() across 73 admin action files
- Add getSession() to public/wholesale server actions
- Fix multi-line return type corruption from earlier auto-fixers
- Move FedEx token cache to non-'use server' module
- Object.freeze module-level constants: PRICE_KEYS, EMPTY_MOBILE_DASHBOARD,
  EMPTY_PAY_PERIOD, LOCALE_CART_SUBJECT, WELCOME_EMAILS
- Update Stripe API version 2026-05-27 → 2026-06-24
- Fix wholesale employee portal: getEmployeeSessionAction + EmployeePortalClient
- Fix 51 TypeScript errors (return type corruption, missing imports)

src/components/route-trace/StickerPreviewModal.tsx

@@ -90,7 +90,7 @@ export default function StickerPreviewModal({ lot, onClose }: { lot: LotDetail;
             <h3 className="text-base font-semibold text-stone-900 flex items-center gap-2">{Icons.printer("h-5 w-5")} Print Sticker</h3>
             <p className="text-xs text-stone-400 mt-0.5">{lot.lot_number} · {lot.crop_type}</p>
           </div>
-          <button onClick={onClose} className="text-stone-400 hover:text-stone-600">
+          <button type="button" onClick={onClose} className="text-stone-400 hover:text-stone-600">
             <svg className="h-5 w-5" fill="none" viewBox="0 0 24 24" stroke="currentColor" strokeWidth={2}>
               <path strokeLinecap="round" strokeLinejoin="round" d="M6 18L18 6M6 6l12 12" />
             </svg>
@@ -107,7 +107,7 @@ export default function StickerPreviewModal({ lot, onClose }: { lot: LotDetail;
                   const label = t === "field" ? "Field" : "Shed";
                   const desc = t === "field" ? "After harvest" : "At shed arrival";
                   return (
-                    <button
+                    <button type="button"
                       key={t}
                       onClick={() => setStickerType(t)}
                       className={`w-full rounded-xl border px-3 py-2.5 text-left transition-colors ${
@@ -130,7 +130,7 @@ export default function StickerPreviewModal({ lot, onClose }: { lot: LotDetail;
                   const w = s === "4x2" ? "2 in" : "3 in";
                   const h = s === "4x2" ? "2 in" : "3 in";
                   return (
-                    <button
+                    <button type="button"
                       key={s}
                       onClick={() => setStickerSize(s)}
                       className={`w-full rounded-xl border px-3 py-2.5 text-left transition-colors ${
@@ -152,7 +152,7 @@ export default function StickerPreviewModal({ lot, onClose }: { lot: LotDetail;
               <p className="mb-2 text-xs font-semibold text-stone-500 uppercase tracking-wider">Copies</p>
               <div className="grid grid-cols-5 gap-1.5">
                 {COPY_OPTIONS.map((n) => (
-                  <button
+                  <button type="button"
                     key={n}
                     onClick={() => setCopies(n)}
                     className={`rounded-lg border py-2 text-center text-sm font-bold transition-colors ${
@@ -284,13 +284,13 @@ export default function StickerPreviewModal({ lot, onClose }: { lot: LotDetail;
         </div>
 
         <div className="flex justify-end gap-3 border-t border-stone-100 px-6 py-4">
-          <button
+          <button type="button"
             onClick={onClose}
             className="rounded-xl border border-stone-200 px-4 py-2.5 text-sm font-semibold text-stone-600 hover:bg-stone-50"
           >
             Cancel
           </button>
-          <button
+          <button type="button"
             onClick={handlePrint}
             disabled={loading}
             className="rounded-xl bg-emerald-600 px-5 py-2.5 text-sm font-bold text-white hover:bg-emerald-700 disabled:opacity-50 flex items-center gap-2"