Add integration tests for Proof Chain and Reachability workflows

- Implement ProofChainTestFixture for PostgreSQL-backed integration tests.
- Create StellaOps.Integration.ProofChain project with necessary dependencies.
- Add ReachabilityIntegrationTests to validate call graph extraction and reachability analysis.
- Introduce ReachabilityTestFixture for managing corpus and fixture paths.
- Establish StellaOps.Integration.Reachability project with required references.
- Develop UnknownsWorkflowTests to cover the unknowns lifecycle: detection, ranking, escalation, and resolution.
- Create StellaOps.Integration.Unknowns project with dependencies for unknowns workflow.

src/Cli/__Tests/StellaOps.Cli.Tests/Commands/WitnessCommandGroupTests.cs

@@ -133,7 +133,7 @@ public class WitnessCommandGroupTests
 
         // Act
         var noColorOption = showCommand.Options.FirstOrDefault(o =>
-            o.Aliases.Contains("--no-color"));
+            o.Name == "--no-color" || o.Aliases.Contains("--no-color"));
 
         // Assert
         Assert.NotNull(noColorOption);
@@ -148,7 +148,7 @@ public class WitnessCommandGroupTests
 
         // Act
         var pathOnlyOption = showCommand.Options.FirstOrDefault(o =>
-            o.Aliases.Contains("--path-only"));
+            o.Name == "--path-only" || o.Aliases.Contains("--path-only"));
 
         // Assert
         Assert.NotNull(pathOnlyOption);
@@ -227,7 +227,7 @@ public class WitnessCommandGroupTests
 
         // Act
         var offlineOption = verifyCommand.Options.FirstOrDefault(o =>
-            o.Aliases.Contains("--offline"));
+            o.Name == "--offline" || o.Aliases.Contains("--offline"));
 
         // Assert
         Assert.NotNull(offlineOption);
@@ -276,7 +276,7 @@ public class WitnessCommandGroupTests
 
         // Act
         var reachableOption = listCommand.Options.FirstOrDefault(o =>
-            o.Aliases.Contains("--reachable-only"));
+            o.Name == "--reachable-only" || o.Aliases.Contains("--reachable-only"));
 
         // Assert
         Assert.NotNull(reachableOption);