fix: Add dummy WEAVIATE_API_KEY for anonymous access

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Author: KoderFPV

Jenkinsfile.eval

@@ -16,7 +16,7 @@ pipeline {
         WEAVIATE_GRPC_HOST = '172.17.0.1'
         WEAVIATE_GRPC_PORT = '50052'
         WEAVIATE_SECURE = 'false'
-        WEAVIATE_API_KEY = ''
+        WEAVIATE_API_KEY = 'anonymous'
     }
 
     stages {