revert: restore production to the state before 730d0bd (PM/RBAC work moved to 'pm')

Their three commits (730d0bd, 5a9b543, 387edfb) reached production by push and
auto-deployed. 387edfb expects a users.username column that the live database does
not have, so POST /api/v1/auth/login was returning HTTP 500. Their schema changes
never applied either (projects still has only id, name, description, start_date,
pm_user_id, created_at), so nothing depends on the reverted code.

This commit sets the tree back to exactly a02b3ea — verified with git diff against
it — while keeping history linear: the work itself is preserved on 'pm' at 387edfb.

frontend/src/pages/Suppliers/SupplierDetailPage.tsx

@@ -14,7 +14,6 @@ import { MultiSelectCombobox } from "../../components/MultiSelectCombobox";
 import { ConfirmDeleteDialog } from "../../components/ConfirmDeleteDialog";
 import { normalize } from "../../lib/normalize";
 import { PurchaseHistory } from "./PurchaseHistory";
-import { useAuthStore } from "../../store/auth";
 
 // تمیزکاری و استانداردسازی شماره برای شماره‌گیر خودکار موبایل (اندروید و iOS)
 function cleanPhoneForTel(phone?: string | null): string {
@@ -33,8 +32,6 @@ export function SupplierDetailPage() {
   const quotes = useQuotes();
   const materials = useMaterials();
   const topics = useAppStore((s) => s.topics);
-  const user = useAuthStore((s) => s.user);
-  const canManage = user?.role === "admin" || user?.role === "procurement_manager";
 
   const s = useMemo(() => suppliers.find((x) => x.id === id) || null, [suppliers, id]);
   const [pendingRemove, setPendingRemove] = useState<string | null>(null);
@@ -187,15 +184,13 @@ export function SupplierDetailPage() {
           </div>
 
           <div className="mt-4 flex items-center gap-2">
-            {canManage && (
-              <Link
-                to={`/wizard?topic=${encodeURIComponent(topicName)}&supplier=${encodeURIComponent(s.id)}`}
-                className="btn-line-file no-underline bg-accent text-white hover:bg-accent-dark"
-              >
-                <Plus className="h-3.5 w-3.5" />
-                پیشنهاد جدید
-              </Link>
-            )}
+            <Link
+              to={`/wizard?topic=${encodeURIComponent(topicName)}&supplier=${encodeURIComponent(s.id)}`}
+              className="btn-line-file no-underline bg-accent text-white hover:bg-accent-dark"
+            >
+              <Plus className="h-3.5 w-3.5" />
+              پیشنهاد جدید
+            </Link>
             {firstCat ? (
               <Link to={`/suppliers/category/${encodeURIComponent(firstCat)}`} className="btn-line-file no-underline">
                 ‹ بازگشت به دسته
@@ -221,23 +216,19 @@ export function SupplierDetailPage() {
               {linked.map((c) => (
                 <span key={c} className="spec-chip">
                   {c}
-                  {canManage && (
-                    <button type="button" className="spec-chip-x" title="حذف متریال" onClick={() => setPendingRemove(c)}>
-                      <X className="h-3 w-3" />
-                    </button>
-                  )}
+                  <button type="button" className="spec-chip-x" title="حذف متریال" onClick={() => setPendingRemove(c)}>
+                    <X className="h-3 w-3" />
+                  </button>
                 </span>
               ))}
             </div>
           )}
-          {canManage && (
-            <MultiSelectCombobox
-              values={[]}
-              onChange={(cats) => saveCategories(cats)}
-              options={materialOptions}
-              placeholder="افزودن متریال..."
-            />
-          )}
+          <MultiSelectCombobox
+            values={[]}
+            onChange={(cats) => saveCategories(cats)}
+            options={materialOptions}
+            placeholder="افزودن متریال..."
+          />
           {purchased.length > 0 && (
             <div className="mt-3 border-t border-line pt-2">
               <div className="mb-1 text-[11px] font-semibold text-muted">متریال‌های خریداری‌شده (از پیشنهادها):</div>