Every saved config, and every earlier baseline, is listed per app. You
can view it, diff it against a server's current config, and roll it back
through preview and apply. Earlier baselines can be restored.
A drift check (HUB_DRIFT_MINUTES, default 15) compares each server with
its effective config. Drift shows in the header and the matrix, with
Accept as baseline and Revert to baseline. All baselines export to one
file. Importing that file shows a dry run before it writes.
Rolling back preselects, and diffs against, the server the version came
from. The line-diff op "del" is renamed to "remove" for the language lint.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The hub keeps a baseline per app in /data/apps/<app>/baseline.json. Local
fields (overrides.json) are left out of the sync and out of the matrix
comparison. Each server gets the baseline plus its own values.
Applying goes target picker, preview with per-server diffs and warnings,
then apply. Apply refuses a server whose config changed since the
preview, saves the old config to history, then reads the new one back
to check it.
Large config bodies are read only for signed-in callers. The App config
dialog has Compare, Baseline and Local fields tabs and an empty state
that offers an import.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
