feature: Site & Gateway Registry + Clinical Sync Contracts

VigilCareClinicalAPI/Validators/CreateSiteRequestValidator.cs

@@ -0,0 +1,12 @@
+using FluentValidation;
+
+public class CreateSiteRequestValidator : AbstractValidator<CreateSiteRequest>
+{
+    public CreateSiteRequestValidator()
+    {
+        RuleFor(x => x.SiteCode).NotEmpty().MaximumLength(32)
+            .Matches("^[A-Z0-9-]+$").WithMessage("SiteCode must be uppercase alphanumeric with hyphens.");
+        RuleFor(x => x.Name).NotEmpty().MaximumLength(200);
+        RuleFor(x => x.Address).MaximumLength(500);
+    }
+}

VigilCareClinicalAPI/Validators/GatewayHeartbeatRequestValidator.cs

@@ -0,0 +1,16 @@
+using FluentValidation;
+using VigilCare.ClinicalContracts.Sync;
+
+public class GatewayHeartbeatRequestValidator : AbstractValidator<GatewayHeartbeatRequest>
+{
+    private static readonly string[] AllowedStatuses = ["ONLINE", "DEGRADED", "OFFLINE"];
+
+    public GatewayHeartbeatRequestValidator()
+    {
+        RuleFor(x => x.Status).NotEmpty()
+            .Must(s => AllowedStatuses.Contains(s.ToUpperInvariant()))
+            .WithMessage("Status must be ONLINE, DEGRADED, or OFFLINE.");
+        RuleFor(x => x.BufferDepth).GreaterThanOrEqualTo(0);
+        RuleFor(x => x.ReportedAtUtc).NotEmpty();
+    }
+}

VigilCareClinicalAPI/Validators/RegisterGatewayRequestValidator.cs

@@ -0,0 +1,10 @@
+using FluentValidation;
+
+public class RegisterGatewayRequestValidator : AbstractValidator<RegisterGatewayRequest>
+{
+    public RegisterGatewayRequestValidator()
+    {
+        RuleFor(x => x.GatewayCode).NotEmpty().MaximumLength(64);
+        RuleFor(x => x.Department).NotEmpty().MaximumLength(100);
+    }
+}