Search/AdvisoryAI and DAL conversion to EF finishes up. Preparation for microservices consolidation.

src/Concelier/__Tests/StellaOps.Concelier.ProofService.Postgres.Tests/CompiledModelGuardTests.cs

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+using FluentAssertions;
+using Microsoft.EntityFrameworkCore;
+using StellaOps.Concelier.ProofService.Postgres.EfCore.CompiledModels;
+using StellaOps.Concelier.ProofService.Postgres.EfCore.Models;
+using Xunit;
+
+namespace StellaOps.Concelier.ProofService.Postgres.Tests;
+
+/// <summary>
+/// Guard tests ensuring the EF Core compiled model is real (not a stub)
+/// and contains all expected entity type registrations.
+/// </summary>
+public sealed class CompiledModelGuardTests
+{
+    [Trait("Category", "Unit")]
+    [Fact]
+    public void CompiledModel_Instance_IsNotNull()
+    {
+        ProofServiceDbContextModel.Instance.Should().NotBeNull(
+            "compiled model must be generated via 'dotnet ef dbcontext optimize', not a stub");
+    }
+
+    [Trait("Category", "Unit")]
+    [Fact]
+    public void CompiledModel_HasExpectedEntityTypeCount()
+    {
+        var entityTypes = ProofServiceDbContextModel.Instance.GetEntityTypes().ToList();
+        entityTypes.Should().HaveCount(5,
+            "proof-service compiled model must contain exactly 5 entity types (regenerate with 'dotnet ef dbcontext optimize' if count differs)");
+    }
+
+    [Trait("Category", "Unit")]
+    [Theory]
+    [InlineData(typeof(BinaryFingerprintEntity))]
+    [InlineData(typeof(ChangelogEvidenceEntity))]
+    [InlineData(typeof(DistroAdvisoryEntity))]
+    [InlineData(typeof(PatchEvidenceEntity))]
+    [InlineData(typeof(PatchSignatureEntity))]
+    public void CompiledModel_ContainsEntityType(Type entityType)
+    {
+        var found = ProofServiceDbContextModel.Instance.FindEntityType(entityType);
+        found.Should().NotBeNull(
+            $"compiled model must contain entity type '{entityType.Name}' — regenerate if missing");
+    }
+
+    [Trait("Category", "Unit")]
+    [Fact]
+    public void CompiledModel_EntityTypes_HaveTableNames()
+    {
+        var entityTypes = ProofServiceDbContextModel.Instance.GetEntityTypes();
+        foreach (var entityType in entityTypes)
+        {
+            var tableName = entityType.GetTableName();
+            tableName.Should().NotBeNullOrWhiteSpace(
+                $"entity type '{entityType.ClrType.Name}' must have a table name configured");
+        }
+    }
+}