Snapshot of fix/QTZPOC-13 source tree

Code-only import without upstream history.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

.env.example

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+POSTGRES_HOST="paradedb-rw.paradedb.svc.cluster.local"
+POSTGRES_PORT="5432"
+POSTGRES_USER="sientia"
+POSTGRES_PASSWORD="password"
+POSTGRES_DBNAME="sientia"
+POSTGRES_MIN_CONNECTIONS="10"
+POSTGRES_MAX_CONNECTIONS="30"
+
+MLFLOW_HOST="http://sientia-tracker-mlflow-tracking.sientia-tracker.svc.cluster.local"
+MLFLOW_PORT="80"
+MLFLOW_USERNAME="aignosi"
+MLFLOW_PASSWORD="mlflow_password"
+
+OPC_ID="1"
+OPC_URL="opc.tcp://sientia-opc-simulator-opc.sientia.svc.cluster.local:4840"
+
+LOG_LEVEL="DEBUG"
+HTTP_METRICS_PORT="9090"
+HTTP_SDK_METRICS_PORT="9091"
+PROJECT_NAME="sientia-laborious"
+
+TEMPORAL_HOST="temporal-frontend.temporal.svc.cluster.local:7233"
+TEMPORAL_NAMESPACE="laborious"
+
+MONGODB_USERNAME="mongo_user"
+MONGODB_PASSWORD="mongo_db_password"
+MONGODB_URL="my-release-mongodb.mongodb.svc.cluster.local:27017"
+MONGODB_DATABASE="sientia"
+MONGODB_TTL_INDEX_HOURS="1"
+
+MINIO_ENDPOINT_URL="http://localhost:9000"
+MINIO_ACCESS_KEY="sientia"
+MINIO_SECRET_KEY="sientia"
+MINIO_REGION_NAME="sa-east-1"
+MINIO_DEFAULT_BUCKET="sientia"