Qdrant's upstream default enables anonymous telemetry to telemetry.qdrant.io,
which doesn't match NOMAD's offline-first "zero telemetry" posture. Adding
QDRANT__TELEMETRY_DISABLED=true to the container environment turns it off for
fresh installs and reinstalls.
Existing installs keep their current telemetry-enabled container until the
Qdrant service is force-reinstalled via the Knowledge Base panel or the next
container recreation — Docker bakes Env into containers at create time, so
env changes require a new container.
Closes#742
Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>