refactor(scripts): move Scripts API from scheduler to release-orchestrator

- Fix dual-schema violation (scheduler was writing to scheduler + scripts)
- Move ScriptsDataSource, PostgresScriptStore, script endpoints
- Update gateway routes and UI references
- Each service now owns exactly one schema

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

devops/compose/docker-compose.stella-services.yml

@@ -688,10 +688,10 @@ services:
     labels: *release-labels
 
   # --- Slot 10: Excititor ----------------------------------------------------
-  excititor:
+  excititor-web:
     <<: *resources-medium
-    image: stellaops/excititor:dev
-    container_name: stellaops-excititor
+    image: stellaops/excititor-web:dev
+    container_name: stellaops-excititor-web
     restart: unless-stopped
     environment:
       ASPNETCORE_URLS: "http://+:8080"
@@ -962,6 +962,9 @@ services:
       Authority__ResourceServer__BypassNetworks__2: "::1/128"
       Authority__ResourceServer__BypassNetworks__3: "0.0.0.0/0"
       Authority__ResourceServer__BypassNetworks__4: "::/0"
+      # Scripts schema (moved from scheduler to release-orchestrator)
+      Scripts__Postgres__ConnectionString: "${STELLAOPS_POSTGRES_CONNECTION}"
+      Scripts__Postgres__SchemaName: "scripts"
       Router__Enabled: "${RELEASE_ORCHESTRATOR_ROUTER_ENABLED:-true}"
       Router__Messaging__ConsumerGroup: "release-orchestrator"
     volumes:
@@ -1709,10 +1712,10 @@ services:
     labels: *release-labels
 
   # --- Slot 40: ExportCenter -------------------------------------------------
-  export:
+  export-web:
     <<: *resources-light
-    image: stellaops/export:dev
-    container_name: stellaops-export
+    image: stellaops/export-web:dev
+    container_name: stellaops-export-web
     restart: unless-stopped
     environment:
       ASPNETCORE_URLS: "http://+:8080"