feat: patient management system + health landing page

Backend:
- Patient model: name, phone, email, age, weight, height, gender,
  blood type, disease history, allergies, medications, notes, category
- PatientVisit model: title, content, prescription, visit type,
  visit/next-visit dates, linked to patient (cascade delete)
- HealthRequest model: public form submissions for beauty/health care
- Runtime SQLite migrations for all 3 new tables
- Full CRUD API: /api/patients, /api/patients/{id}/visits,
  /api/health-requests (public POST + admin GET/PUT/DELETE)

Admin panel:
- 'پرونده بیماران' page: list, search, filter by category (beauty/health)
- Patient profile page: personal info + medical history + visits timeline
- Add/edit patient modal with all medical fields
- Add visit modal: type, date, clinical notes, prescription, next visit
- 'درخواست‌ها' page: manage public health requests, mark as handled
- Badge counter for unhandled requests in sidebar

Frontend (SEO):
- New #health-care section with Schema.org MedicalClinic markup
- Two category cards: زیبایی پوست and سلامت عمومی
- Feature lists with checkmarks per category
- Inline request form that submits to /api/health-request
- Mobile responsive (single column on small screens)

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

DrSousan.Api/Models/Models.cs

@@ -130,6 +130,56 @@ public class Faq
     public DateTime CreatedAt { get; set; } = DateTime.UtcNow;
 }
 
+// ─── Patient ──────────────────────────────────────────────────────────────────
+public class Patient
+{
+    public int Id { get; set; }
+    [MaxLength(150)] public string FullName    { get; set; } = "";
+    [MaxLength(20)]  public string PhoneNumber { get; set; } = "";
+    [MaxLength(200)] public string Email       { get; set; } = "";
+    public int     Age    { get; set; }
+    public decimal Weight { get; set; }   // kg
+    public decimal Height { get; set; }   // cm
+    [MaxLength(10)]  public string Gender       { get; set; } = "";   // مرد / زن
+    [MaxLength(10)]  public string BloodType    { get; set; } = "";
+    public string DiseaseHistory { get; set; } = "";
+    public string Allergies      { get; set; } = "";
+    public string Medications    { get; set; } = "";
+    public string Notes          { get; set; } = "";
+    [MaxLength(20)]  public string Category  { get; set; } = "beauty"; // beauty | health
+    public bool     IsActive  { get; set; } = true;
+    public DateTime CreatedAt { get; set; } = DateTime.UtcNow;
+    public ICollection<PatientVisit> Visits { get; set; } = new List<PatientVisit>();
+}
+
+// ─── Patient Visit / Doctor Note ──────────────────────────────────────────────
+public class PatientVisit
+{
+    public int Id { get; set; }
+    public int PatientId { get; set; }
+    public Patient? Patient { get; set; }
+    [MaxLength(300)] public string Title   { get; set; } = "";
+    public string Content { get; set; } = "";
+    public string Prescription { get; set; } = "";   // دارو / تجویز
+    [MaxLength(50)] public string VisitType { get; set; } = "ویزیت";  // ویزیت | آزمایش | پروسیجر
+    public DateTime VisitDate     { get; set; } = DateTime.UtcNow;
+    public DateTime? NextVisitDate { get; set; }
+    public DateTime CreatedAt     { get; set; } = DateTime.UtcNow;
+}
+
+// ─── Health / Appointment Request (public form) ───────────────────────────────
+public class HealthRequest
+{
+    public int Id { get; set; }
+    [MaxLength(150)] public string FullName    { get; set; } = "";
+    [MaxLength(20)]  public string PhoneNumber { get; set; } = "";
+    [MaxLength(200)] public string Email       { get; set; } = "";
+    public string Message  { get; set; } = "";
+    [MaxLength(20)]  public string Category    { get; set; } = "beauty"; // beauty | health
+    public bool     IsHandled { get; set; } = false;
+    public DateTime CreatedAt { get; set; } = DateTime.UtcNow;
+}
+
 // ─── DTOs ─────────────────────────────────────────────────────────────────────
 public record LoginRequest(string Username, string Password);
 public record ChangePasswordRequest(string CurrentPassword, string NewPassword);