loki.source.docker resumes from a one-second position and Docker's since
is inclusive, so each restart re-reads a container's last logged second.
For idle containers those lines are older than 7 days and Grafana Cloud
Loki rejects the batch with 400 timestamp too old. Drop them before
loki.write; Loki would not have stored them anyway.
Service READMEs now cover only what the service is and how to deploy it.
Known issues, log noise and troubleshooting move to docs/<service>/, named
after the service directory, so editing them never redeploys the service.
Drop alloy's validate workflow, which never ran from a subdirectory.
tiennm99