cc6844605f
The agent writes its encrypted secrets blob to $DefaultSecretsPath (/var/lib/restic-manager/secrets.enc) but the e2e fixtures created and mounted a directory at /var/lib/restic-manager-agent — name mismatch. Result: every `config.update` push failed with 'create tmp: no such file or directory', the auto-init never got the repo creds, the host landed in init_failed, and the smoke test couldn't kick off a backup (the Run backup button is disabled while repo_status != ready). Align the compose volume mount and the Dockerfile mkdir on /var/lib/restic-manager so they match the production install script + the agent's own default.