Add tests and implement StubBearer authentication for Signer endpoints

- Created SignerEndpointsTests to validate the SignDsse and VerifyReferrers endpoints.
- Implemented StubBearerAuthenticationDefaults and StubBearerAuthenticationHandler for token-based authentication.
- Developed ConcelierExporterClient for managing Trivy DB settings and export operations.
- Added TrivyDbSettingsPageComponent for UI interactions with Trivy DB settings, including form handling and export triggering.
- Implemented styles and HTML structure for Trivy DB settings page.
- Created NotifySmokeCheck tool for validating Redis event streams and Notify deliveries.

deploy/compose/docker-compose.airgap.yaml

@@ -136,10 +136,16 @@ services:
       - nats
     environment:
       SCANNER__STORAGE__MONGO__CONNECTIONSTRING: "mongodb://${MONGO_INITDB_ROOT_USERNAME}:${MONGO_INITDB_ROOT_PASSWORD}@mongo:27017"
-      SCANNER__STORAGE__S3__ENDPOINT: "http://minio:9000"
-      SCANNER__STORAGE__S3__ACCESSKEYID: "${MINIO_ROOT_USER}"
-      SCANNER__STORAGE__S3__SECRETACCESSKEY: "${MINIO_ROOT_PASSWORD}"
-      SCANNER__QUEUE__BROKER: "${SCANNER_QUEUE_BROKER}"
+      SCANNER__STORAGE__S3__ENDPOINT: "http://minio:9000"
+      SCANNER__STORAGE__S3__ACCESSKEYID: "${MINIO_ROOT_USER}"
+      SCANNER__STORAGE__S3__SECRETACCESSKEY: "${MINIO_ROOT_PASSWORD}"
+      SCANNER__QUEUE__BROKER: "${SCANNER_QUEUE_BROKER}"
+      SCANNER__EVENTS__ENABLED: "${SCANNER_EVENTS_ENABLED:-false}"
+      SCANNER__EVENTS__DRIVER: "${SCANNER_EVENTS_DRIVER:-redis}"
+      SCANNER__EVENTS__DSN: "${SCANNER_EVENTS_DSN:-}"
+      SCANNER__EVENTS__STREAM: "${SCANNER_EVENTS_STREAM:-stella.events}"
+      SCANNER__EVENTS__PUBLISHTIMEOUTSECONDS: "${SCANNER_EVENTS_PUBLISH_TIMEOUT_SECONDS:-5}"
+      SCANNER__EVENTS__MAXSTREAMLENGTH: "${SCANNER_EVENTS_MAX_STREAM_LENGTH:-10000}"
     ports:
       - "${SCANNER_WEB_PORT:-8444}:8444"
     networks: