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

src/Components/User/DeleteConfirmModal.tsx

@@ -1,58 +0,0 @@
-"use client";
-
-import { useEffect } from "react";
-import { Spinner } from "../UI";
-import type { User } from "@/src/types/user";
-
-interface DeleteConfirmModalProps {
-  user:      User;
-  deleting:  boolean;
-  onCancel:  () => void;
-  onConfirm: () => void;
-}
-
-export function DeleteConfirmModal({ user, deleting, onCancel, onConfirm }: DeleteConfirmModalProps) {
-  useEffect(() => {
-    const handler = (e: KeyboardEvent) => { if (e.key === "Escape") onCancel(); };
-    window.addEventListener("keydown", handler);
-    return () => window.removeEventListener("keydown", handler);
-  }, [onCancel]);
-
-  return (
-    <div
-      role="alertdialog" aria-modal="true" aria-labelledby="del-title"
-      onClick={e => { if (e.target === e.currentTarget) onCancel(); }}
-      style={{ position: "fixed", inset: 0, zIndex: 60, background: "rgba(15,23,42,0.55)", backdropFilter: "blur(4px)", display: "flex", alignItems: "center", justifyContent: "center", padding: "1rem" }}
-    >
-      <div
-        onClick={e => e.stopPropagation()}
-        style={{ width: "100%", maxWidth: 400, background: "var(--color-surface)", borderRadius: "var(--radius-xl)", border: "1px solid #FECACA", boxShadow: "0 20px 48px rgba(0,0,0,.18)", padding: "2rem", display: "flex", flexDirection: "column", gap: "1rem", textAlign: "center" }}
-      >
-        {/*  icon delete */}
-        <div style={{ width: 52, height: 52, margin: "0 auto", borderRadius: "50%", background: "#FEF2F2", border: "1px solid #FECACA", display: "flex", alignItems: "center", justifyContent: "center" }}>
-          <svg width="22" height="22" viewBox="0 0 24 24" fill="none" stroke="#DC2626" strokeWidth="2">
-            <polyline points="3 6 5 6 21 6" /><path d="M19 6l-1 14a2 2 0 0 1-2 2H8a2 2 0 0 1-2-2L5 6" />
-            <path d="M10 11v6M14 11v6" /><path d="M9 6V4a1 1 0 0 1 1-1h4a1 1 0 0 1 1 1v2" />
-          </svg>
-        </div>
-        <div>
-          <h2 id="del-title" style={{ fontSize: 17, fontWeight: 700, color: "var(--color-text-primary)", margin: 0 }}>حذف المستخدم</h2>
-          <p style={{ marginTop: 8, fontSize: 13, color: "var(--color-text-muted)", lineHeight: 1.6 }}>
-            هل أنت متأكد من حذف <strong style={{ color: "var(--color-text-primary)" }}>{user.name}</strong>؟ لا يمكن التراجع عن هذا الإجراء.
-          </p>
-        </div>
-        <div style={{ display: "flex", gap: "0.5rem" }}>
-          <button type="button" onClick={onCancel} disabled={deleting}
-            style={{ flex: 1, height: 40, borderRadius: "var(--radius-md)", border: "1px solid var(--color-border)", background: "var(--color-surface)", fontSize: 13, fontWeight: 600, color: "var(--color-text-secondary)", cursor: deleting ? "not-allowed" : "pointer", fontFamily: "var(--font-sans)" }}>
-            إلغاء
-          </button>
-          <button type="button" onClick={onConfirm} disabled={deleting}
-            style={{ flex: 1, height: 40, borderRadius: "var(--radius-md)", border: "none", background: "#DC2626", fontSize: 13, fontWeight: 700, color: "#FFF", cursor: deleting ? "not-allowed" : "pointer", display: "flex", alignItems: "center", justifyContent: "center", gap: 8, fontFamily: "var(--font-sans)", opacity: deleting ? 0.7 : 1 }}>
-            {deleting && <Spinner size="sm" className="text-white" />}
-            {deleting ? "جارٍ الحذف…" : "تأكيد الحذف"}
-          </button>
-        </div>
-      </div>
-    </div>
-  );
-}