Implement credentialed drill packaging workplan

docs/release-note-template.md

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+# Release Note Template
+
+## Summary
+
+Briefly describe the release and the workplan or decision that authorized it.
+
+## Changed Exports
+
+- Added:
+- Changed:
+- Removed:
+
+Reference the updated `tests/fixtures/public-api-snapshot.json` entry when the
+public export list changes.
+
+## Changed Service Operations
+
+- Added:
+- Changed:
+- Removed:
+
+Reference `service_contracts()["operations"]` and explain compatibility impact.
+
+## Migration Needs
+
+- Local store migrations:
+- Runtime envelope migrations:
+- Adapter manifest migrations:
+
+Include whether migration apply is automatic, operator-triggered, or not
+required.
+
+## Operator Action
+
+- Required environment variables:
+- Service packaging changes:
+- Readiness checks:
+- Rollback note:
+
+No credentials, tokens, or live endpoints should be included in the release
+note.