feat: return human-readable product names from GetProductIds

GetProductIds now returns ProductName (e.g. "DV SSL") instead of the
numeric ProductCode so the Command UI dropdown shows meaningful labels.
EnrollmentParams.ProductCode no longer falls back to the gateway
ProductID since names cannot be passed to the CERTInext API — operators
must set ProductCode explicitly on every template.
Manifest product_ids updated to match the descriptive naming convention.

Author: spbsoluble

CERTInext/CERTInextCAPlugin.cs

@@ -144,7 +144,7 @@ public List<string> GetProductIds()
                 var profiles = _client.GetProfilesAsync().GetAwaiter().GetResult();
                 var ids = profiles
                     .Where(p => p.Active)
-                    .Select(p => p.Id)
+                    .Select(p => p.Name ?? p.Id)
                     .ToList();
 
                 _logger.LogInformation("Retrieved {Count} active certificate profiles from CERTInext.", ids.Count);

CERTInext/Models/EnrollmentParams.cs

@@ -29,12 +29,14 @@ public EnrollmentParams(EnrollmentProductInfo productInfo)
         public string ProductId { get; }
 
         /// <summary>
-        /// The CERTInext product code configured on the template.
-        /// Falls back to ProfileId for backward compat, then to the ProductID from the gateway.
+        /// The CERTInext numeric product code configured on the template.
+        /// Falls back to the deprecated ProfileId parameter for backward compat.
+        /// Must be a numeric string (e.g. "838") — the gateway ProductID is a human-readable
+        /// name and cannot be passed to the API.
         /// </summary>
         public string ProductCode =>
             GetString(Constants.EnrollmentParam.ProductCode,
-                GetString(Constants.EnrollmentParam.ProfileId, ProductId));
+                GetString(Constants.EnrollmentParam.ProfileId, string.Empty));
 
         /// <summary>Alias for ProductCode — kept for backward compat.</summary>
         public string ProfileId => ProductCode;

integration-manifest.json

@@ -12,7 +12,15 @@
     "release_project": "CERTInext/CERTInext.csproj",
     "about": {
         "carest": {
-            "product_ids": [],
+            "product_ids": [
+                "DV SSL",
+                "DV SSL Wildcard",
+                "DV SSL Multi-Domain (UCC)",
+                "OV SSL",
+                "OV SSL Wildcard",
+                "OV SSL Multi-Domain (UCC)",
+                "EV SSL"
+            ],
             "ca_plugin_config": [
                 {
                     "name": "ApiUrl",