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/Models/Enums.cs

@@ -41,7 +41,8 @@ public enum PayType
 {
     PerShift = 0,      // مقطوع برای هر شیفت
     PerHour = 1,       // ساعتی
-    Negotiable = 2     // توافقی
+    Negotiable = 2,    // توافقی
+    Percentage = 3     // درصدی / سهم درآمد
 }
 
 public enum ApplicationStatus