fix: resolve permission fallback bug, remove debug code, and cleanup duplication

Logic Errors
------------
- Sidebar: fix permissions fallback so a user with no permissions gets
  zero access instead of falling back to the full nav list
  (user?.permissions ?? [] instead of ?? navSections.flatMap(...))
- carMaintanance.service / UseCarsMaintanance: add pagination to the
  maintenance records fetch instead of loading the entire list at once
- api.ts: redact sensitive fields (password, token) before logging the
  request body in console.debug, to avoid leaking credentials/PII

Code Flow Problems
-------------------
- OrderFormModal: remove leftover console.log/debug statements and the
  redundant onClick handler on the submit button
- auth: remove the unused src/service/auth.service.ts (axios) and keep
  only src/services/auth.service.ts (fetch); fix useAuth.ts import path
  from

app/components/layout/ConditionalNavbar.tsx

@@ -1,12 +1,21 @@
+// app/components/layout/ConditionalNavbar.tsx
 "use client";
 
 import { usePathname } from "next/navigation";
-import { getStoredUser } from "@/src/lib/auth";
+import { useStoredUser } from "@/src/hooks/useStoredUser";
 import Navbar from "./Navbar";
 
 export default function ConditionalNavbar() {
   const pathname = usePathname();
-  const user = getStoredUser();
+
+  // استبدلنا getStoredUser() المباشر بالـ hook عشان يبقى SSR-safe
+  const { user, loading } = useStoredUser();
+
+  // لحد ما نتأكد من حالة تسجيل الدخول من الـ storage، منوريش/مخفيش
+  // الناف بار عشان نتجنب وميض (flash) قبل الـ hydration يخلص. مفيش
+  // حاجة تتعرض هنا أصلاً (مفيش avatar/اسم في الناف بار العام)، فـ null
+  // كافية ومفيش داعي لـ Spinner/InlineLoader في المكان ده.
+  if (loading) return null;
 
   // لو المستخدم مسجل دخول، أو الصفحة الحالية جوه الداشبورد، منظهرش الناف بار العام
   const isDashboardRoute = pathname?.startsWith("/dashboard");

app/components/layout/Sidebar.tsx

@@ -363,6 +363,7 @@ function SidebarContent({
                   pathname.startsWith(item.href + "/"));
               return (
                 <Link
+                suppressHydrationWarning
                   key={item.href}
                   href={item.href}
                   title={compact ? item.label : undefined}

app/components/layout/Topbar.tsx

@@ -1,23 +1,28 @@
+// app/components/layout/Topbar.tsx
 "use client";
 
 import { useRouter } from "next/navigation";
-import { clearAuth, getStoredUser } from "@/src/lib/auth";
+import { clearAuth } from "@/src/lib/auth";
+import { useStoredUser } from "@/src/hooks/useStoredUser";
+import { Spinner } from "@/src/Components/UI/Spinner";
 import { useSidebarDrawer, BrandIconButton } from "./Sidebar";
 
 export function Topbar() {
   const router = useRouter();
   const { setOpen } = useSidebarDrawer();
 
+  // كان بيتقرأ بشكل sync عن طريق getStoredUser() جوه الرندر — استبدلناه بالـ hook
+  // عشان يبقى SSR-safe ومايعملش hydration mismatch، وكمان يعمل subscribe
+  // لأي تغيير في الـ storage (تسجيل دخول/خروج من تاب تاني).
+  const { user, loading } = useStoredUser();
+
   async function handleLogout() {
     await clearAuth();
     router.replace("/login");
   }
 
-  const user = getStoredUser();
-
   return (
     <header
-      suppressHydrationWarning
       style={{
         height: "var(--topbar-height)",
         background: "#FFFFFF",
@@ -52,18 +57,33 @@ export function Topbar() {
           حسابي
         </button>
 
+        {/*
+          Loading guard: InlineLoader is meant for card/section-level loading
+          (py-4 + message text) and doesn't fit a small inline pill here, so
+          we use the same underlying <Spinner size="sm" /> the project already
+          ships, just placed inside the existing badge shell.
+        */}
         <div
-          suppressHydrationWarning
+          role="status"
+          aria-label={loading ? "جارِ التحميل" : undefined}
           style={{
+            display: "flex",
+            alignItems: "center",
+            justifyContent: "center",
             fontSize: 12,
             color: "var(--color-text-secondary)",
             background: "var(--color-surface-muted)",
             border: "1px solid var(--color-border)",
             borderRadius: "var(--radius-full)",
-            padding: "4px 12px",
+            padding: loading ? "4px 10px" : "4px 12px",
+            minWidth: 40,
           }}
         >
-          {user?.role ?? "—"}
+          {loading ? (
+            <Spinner size="sm" className="text-[var(--color-text-muted)]" />
+          ) : (
+            user?.role ?? "—"
+          )}
         </div>
 
         <button