SIENTIAPDE-1646

Refactor worker task queue management and update README

- Introduced runtime-scoped task queues for workflows, replacing legacy queue names.
- Updated worker implementation to utilize `sientia_do.temporal.worker.prepare_worker`.
- Added `RUNTIME` environment variable to configure task queue suffixes.
- Enhanced README documentation to reflect changes in task queue structure and worker setup.

values.yaml

@@ -209,6 +209,9 @@ env:
     value: "temporal-frontend.temporal.svc.cluster.local:7233"
   - name: TEMPORAL_NAMESPACE
     value: "laborious"
+  # Suffix for all Temporal task queues: {workflow}-{RUNTIME}-queue
+  - name: RUNTIME
+    value: "legacy"
 
   - name: MONGODB_USERNAME
     value: "root"