fix(web): add ReactQueryProvider to root layout for Mission Control

Mission Control components (AuditLogDrawer, GlobalAgentRoster, PanelControls)
use @tanstack/react-query hooks but no QueryClientProvider existed in the
layout tree. This caused a crash: 'No QueryClient set, use QueryClientProvider'.

Added ReactQueryProvider wrapper in apps/web/src/providers/ and wired it into
the root layout above ErrorBoundary/AuthProvider so all routes have access.

docker-compose.swarm.portainer.yml

@@ -316,8 +316,6 @@ services:
       SANDBOX_ENABLED: "true"
       # API key for authenticating requests from the web proxy
       ORCHESTRATOR_API_KEY: ${ORCHESTRATOR_API_KEY}
-      # Prisma database connection (uses the shared openbrain postgres)
-      DATABASE_URL: postgresql://${POSTGRES_USER}:${POSTGRES_PASSWORD}@openbrain_brain-db:5432/${POSTGRES_DB:-mosaic}
     volumes:
       - /var/run/docker.sock:/var/run/docker.sock:ro
       - orchestrator_workspace:/workspace
@@ -333,7 +331,6 @@ services:
       start_period: 40s
     networks:
       - internal
-      - openbrain-brain-internal
     cap_drop:
       - ALL
     cap_add:
@@ -406,7 +403,6 @@ services:
     networks:
       - internal
       - traefik-public
-      - openbrain-brain-internal
     deploy:
       restart_policy:
         condition: on-failure