Initial import into Gitea

Registration/Data/IRegistrationDataService.cs

@@ -0,0 +1,64 @@
+namespace Registration.Data;
+
+/// <summary>
+/// Abstraction over registration data. 
+/// MockDataService for development, SqlDataService when DB is connected.
+/// </summary>
+public interface IRegistrationDataService
+{
+    Task<RegistrationListResult> GetPendingAsync(CancellationToken ct = default);
+    Task<Applicant?> GetByIdAsync(string registrationId, CancellationToken ct = default);
+    Task<RegistrationResult> RegisterAsync(RegisterRequest request, CancellationToken ct = default);
+    Task<RegistrationResult> RejectAsync(string registrationId, string? reason, string? rejectedBy, CancellationToken ct = default);
+    Task<RegistrationResult> CompleteAsync(string registrationId, string? platformClientId, CancellationToken ct = default);
+}
+
+// ── Models ──
+
+public sealed class Applicant
+{
+    public string RegistrationId { get; set; } = "";
+    public string BusinessName { get; set; } = "";
+    public string? WebsiteUrl { get; set; }
+    public string? BusinessCategory { get; set; }
+    public string? BusinessDescription { get; set; }
+    public string? ContactName { get; set; }
+    public string? ContactEmail { get; set; }
+    public string? ContactPhone { get; set; }
+    public string? EntraSubjectId { get; set; }
+    public string? ClientCategory { get; set; }          // General | Franchisee | Franchisor
+    public string Status { get; set; } = "Pending";      // Pending, Approved, Rejected
+    public bool PaymentVerified { get; set; }
+    public DateTime RegisteredUtc { get; set; }
+    public DateTime? ReviewedUtc { get; set; }
+    public string? ReviewedBy { get; set; }
+    public string? RejectionReason { get; set; }
+    public string? PlatformClientId { get; set; }         // Set after approval
+}
+
+public sealed class RegisterRequest
+{
+    public string? BusinessName { get; set; }
+    public string? WebsiteUrl { get; set; }
+    public string? BusinessCategory { get; set; }
+    public string? BusinessDescription { get; set; }
+    public string? ContactName { get; set; }
+    public string? ContactEmail { get; set; }
+    public string? ContactPhone { get; set; }
+    public string? EntraSubjectId { get; set; }
+    public string? ClientCategory { get; set; }          // General | Franchisee | Franchisor
+}
+
+public sealed class RegistrationListResult
+{
+    public bool Ok { get; set; }
+    public List<Applicant> Applicants { get; set; } = new();
+    public int TotalCount { get; set; }
+}
+
+public sealed class RegistrationResult
+{
+    public bool Ok { get; set; }
+    public string? Error { get; set; }
+    public string? RegistrationId { get; set; }
+}