refactor: DB schema fixes + container renames + compose include + audit sprint

- FindingsLedger: change schema from public to findings (V3-01)
- Add 9 migration module plugins: RiskEngine, Replay, ExportCenter, Integrations, Signer, IssuerDirectory, Workflow, PacksRegistry, OpsMemory (V4-01 to V4-09)
- Remove 16 redundant inline CREATE SCHEMA patterns (V4-10)
- Rename export→export-web, excititor→excititor-web for consistency
- Compose stella-ops.yml: thin wrapper using include: directive
- Fix dead /api/v1/jobengine/* gateway routes → release-orchestrator/packsregistry
- Scheduler plugin architecture: ISchedulerJobPlugin + ScanJobPlugin + DoctorJobPlugin
- Create unified audit sink sprint plan
- VulnExplorer integration tests + gap analysis

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

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

@@ -39,7 +39,17 @@ public class MigrationModuleRegistryTests
         Assert.Contains(modules, m => m.Name == "SbomLineage" && m.SchemaName == "sbom");
         Assert.Contains(modules, m => m.Name == "ReachGraph" && m.SchemaName == "reachgraph");
         Assert.Contains(modules, m => m.Name == "Verdict" && m.SchemaName == "stellaops");
-        Assert.True(MigrationModuleRegistry.ModuleNames.Count() >= 20);
+        Assert.Contains(modules, m => m.Name == "FindingsLedger" && m.SchemaName == "findings");
+        Assert.Contains(modules, m => m.Name == "Signer" && m.SchemaName == "signer");
+        Assert.Contains(modules, m => m.Name == "IssuerDirectory" && m.SchemaName == "issuer");
+        Assert.Contains(modules, m => m.Name == "Workflow" && m.SchemaName == "workflow");
+        Assert.Contains(modules, m => m.Name == "PacksRegistry" && m.SchemaName == "packs");
+        Assert.Contains(modules, m => m.Name == "OpsMemory" && m.SchemaName == "opsmemory");
+        Assert.Contains(modules, m => m.Name == "ExportCenter" && m.SchemaName == "export_center");
+        Assert.Contains(modules, m => m.Name == "Integrations" && m.SchemaName == "integrations");
+        Assert.Contains(modules, m => m.Name == "Replay" && m.SchemaName == "replay");
+        Assert.Contains(modules, m => m.Name == "RiskEngine" && m.SchemaName == "riskengine");
+        Assert.True(MigrationModuleRegistry.ModuleNames.Count() >= 36);
     }
 
     [Fact]
@@ -78,6 +88,6 @@ public class MigrationModuleRegistryTests
     public void GetModules_All_Returns_All()
     {
         var result = MigrationModuleRegistry.GetModules(null);
-        Assert.True(result.Count() >= 20);
+        Assert.True(result.Count() >= 36);
     }
 }