Add Rider launch profiles, fix DI and migrations for dev startup

- Rider launch profiles: "ScadaLink Central" and "ScadaLink Site"
- appsettings.Central.json: correct test_infra credentials (ScadaLink_Dev1#,
  scadalink_app user, GLAuth on 3893, Mailpit on 1025)
- Fix HealthMonitoring DI: split site vs central registration to avoid
  missing IHealthReportTransport on central
- Regenerate single clean EF migration (InitialSchema) covering all entities
- Suppress PendingModelChangesWarning in dev mode
- Fix isDevelopment check for ASPNETCORE_ENVIRONMENT propagation

Verified: Host starts, connects to SQL Server, applies migrations, boots
Akka.NET cluster, LDAP auth works (admin/password via GLAuth), health
endpoint returns Healthy.

src/ScadaLink.ConfigurationDatabase/Migrations/ScadaLinkDbContextModelSnapshot.cs

@@ -22,6 +22,25 @@ namespace ScadaLink.ConfigurationDatabase.Migrations
 
             SqlServerModelBuilderExtensions.UseIdentityColumns(modelBuilder);
 
+            modelBuilder.Entity("Microsoft.AspNetCore.DataProtection.EntityFrameworkCore.DataProtectionKey", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("FriendlyName")
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<string>("Xml")
+                        .HasColumnType("nvarchar(max)");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("DataProtectionKeys");
+                });
+
             modelBuilder.Entity("ScadaLink.Commons.Entities.Audit.AuditLogEntry", b =>
                 {
                     b.Property<int>("Id")
@@ -76,6 +95,44 @@ namespace ScadaLink.ConfigurationDatabase.Migrations
                     b.ToTable("AuditLogEntries");
                 });
 
+            modelBuilder.Entity("ScadaLink.Commons.Entities.Deployment.DeployedConfigSnapshot", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("ConfigurationJson")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<DateTimeOffset>("DeployedAt")
+                        .HasColumnType("datetimeoffset");
+
+                    b.Property<string>("DeploymentId")
+                        .IsRequired()
+                        .HasMaxLength(100)
+                        .HasColumnType("nvarchar(100)");
+
+                    b.Property<int>("InstanceId")
+                        .HasColumnType("int");
+
+                    b.Property<string>("RevisionHash")
+                        .IsRequired()
+                        .HasMaxLength(100)
+                        .HasColumnType("nvarchar(100)");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("DeploymentId");
+
+                    b.HasIndex("InstanceId")
+                        .IsUnique();
+
+                    b.ToTable("DeployedConfigSnapshots");
+                });
+
             modelBuilder.Entity("ScadaLink.Commons.Entities.Deployment.DeploymentRecord", b =>
                 {
                     b.Property<int>("Id")
@@ -100,6 +157,9 @@ namespace ScadaLink.ConfigurationDatabase.Migrations
                         .HasMaxLength(100)
                         .HasColumnType("nvarchar(100)");
 
+                    b.Property<string>("ErrorMessage")
+                        .HasColumnType("nvarchar(max)");
+
                     b.Property<int>("InstanceId")
                         .HasColumnType("int");
 
@@ -109,6 +169,7 @@ namespace ScadaLink.ConfigurationDatabase.Migrations
 
                     b.Property<byte[]>("RowVersion")
                         .IsConcurrencyToken()
+                        .IsRequired()
                         .ValueGeneratedOnAddOrUpdate()
                         .HasColumnType("rowversion");
 
@@ -951,6 +1012,15 @@ namespace ScadaLink.ConfigurationDatabase.Migrations
                     b.ToTable("TemplateScripts");
                 });
 
+            modelBuilder.Entity("ScadaLink.Commons.Entities.Deployment.DeployedConfigSnapshot", b =>
+                {
+                    b.HasOne("ScadaLink.Commons.Entities.Instances.Instance", null)
+                        .WithMany()
+                        .HasForeignKey("InstanceId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+                });
+
             modelBuilder.Entity("ScadaLink.Commons.Entities.Deployment.DeploymentRecord", b =>
                 {
                     b.HasOne("ScadaLink.Commons.Entities.Instances.Instance", null)