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>

devops/compose/docker-compose.compliance-china.yml

@@ -144,8 +144,8 @@ services:
   # ---------------------------------------------------------------------------
   # Excititor - China crypto overlay
   # ---------------------------------------------------------------------------
-  excititor:
-    image: registry.stella-ops.org/stellaops/excititor:china
+  excititor-web:
+    image: registry.stella-ops.org/stellaops/excititor-web:china
     environment:
       <<: *crypto-env
     volumes:

devops/compose/docker-compose.compliance-eu.yml

@@ -152,8 +152,8 @@ services:
   # ---------------------------------------------------------------------------
   # Excititor - EU crypto overlay
   # ---------------------------------------------------------------------------
-  excititor:
-    image: registry.stella-ops.org/stellaops/excititor:eu
+  excititor-web:
+    image: registry.stella-ops.org/stellaops/excititor-web:eu
     environment:
       <<: *crypto-env
     volumes:

devops/compose/docker-compose.compliance-russia.yml

@@ -160,8 +160,8 @@ services:
   # ---------------------------------------------------------------------------
   # Excititor - Russia crypto overlay
   # ---------------------------------------------------------------------------
-  excititor:
-    image: registry.stella-ops.org/stellaops/excititor:russia
+  excititor-web:
+    image: registry.stella-ops.org/stellaops/excititor-web:russia
     environment:
       <<: *crypto-env
     volumes:

devops/compose/docker-compose.crypto-provider.crypto-sim.yml

@@ -112,7 +112,7 @@ services:
       com.stellaops.crypto.simulator: "enabled"
 
   # Excititor - Enable sim crypto
-  excititor:
+  excititor-web:
     environment:
       <<: *sim-crypto-env
     labels:

devops/compose/docker-compose.crypto-provider.cryptopro.yml

@@ -136,7 +136,7 @@ services:
       com.stellaops.crypto.provider: "cryptopro"
 
   # Excititor - Use CryptoPro for VEX signing
-  excititor:
+  excititor-web:
     environment:
       <<: *cryptopro-env
     depends_on: