Add hiring, AI parser+admin, OTP auth, employer dashboard, profit-share pay

- Hiring (استخدام) listings: JobOpening + /Jobs browse/detail + home section
- Heuristic Persian listing-parser + admin queue (/Admin) → publish shift/job
- Phone-OTP cookie auth + visitor-history linking + profile; Admin role gate
- Employer side: self-serve facility registration, dashboard, post/manage shifts & jobs, applicants list with contact
- Compensation models: fixed / hourly / profit-share (درصدی) / negotiable / choice (به انتخاب شما); SharePercent + JalaliDate.PayLabel; parser + filter

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

src/JobsMedical.Web/Pages/Shared/_Layout.cshtml

@@ -35,6 +35,10 @@
                     {
                         <a asp-page="/Admin/Index" style="margin-inline-end:14px; font-weight:600;">پنل مدیریت</a>
                     }
+                    @if (User.IsInRole("FacilityAdmin"))
+                    {
+                        <a asp-page="/Employer/Index" style="margin-inline-end:14px; font-weight:600;">پنل کارفرما</a>
+                    }
                     <a asp-page="/Account/Profile" style="margin-inline-end:10px; font-weight:600;">پروفایل</a>
                     <form method="post" asp-page="/Account/Logout" style="display:inline;">
                         <button type="submit" class="btn btn-outline" style="padding:7px 14px;">خروج</button>