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/Account/Login.cshtml.cs

@@ -84,16 +84,8 @@ public class LoginModel : PageModel
             await _db.SaveChangesAsync();
         }
 
-        var claims = new List<Claim>
-        {
-            new(ClaimTypes.NameIdentifier, user.Id.ToString()),
-            new(ClaimTypes.MobilePhone, user.Phone),
-            new(ClaimTypes.Name, user.FullName ?? user.Phone),
-            new(ClaimTypes.Role, user.Role.ToString()),
-        };
-        var identity = new ClaimsIdentity(claims, CookieAuthenticationDefaults.AuthenticationScheme);
         await HttpContext.SignInAsync(CookieAuthenticationDefaults.AuthenticationScheme,
-            new ClaimsPrincipal(identity));
+            AuthHelper.BuildPrincipal(user));
 
         return LocalRedirect(string.IsNullOrEmpty(returnUrl) ? "/" : returnUrl);
     }

src/JobsMedical.Web/Pages/Account/Profile.cshtml

@@ -29,6 +29,16 @@
         <a class="btn btn-outline" asp-page="/Preferences/Index">تنظیم علاقه‌مندی‌ها</a>
     </div>
 
+    @if (User.IsInRole("FacilityAdmin") || User.IsInRole("Admin"))
+    {
+        <p><a asp-page="/Employer/Index">→ ورود به پنل کارفرما</a></p>
+    }
+    else
+    {
+        <p class="muted">مرکز درمانی هستی و می‌خواهی شیفت یا استخدام منتشر کنی؟
+            <a asp-page="/Employer/RegisterFacility">مرکز خود را ثبت کن</a></p>
+    }
+
     <h2 style="font-size:20px;">شیفت‌های ذخیره‌شده</h2>
     @if (Model.SavedShifts.Count == 0)
     {