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* fix(config): quarantine an unparseable config.json instead of overwriting it (#537) A config.json that failed to parse was replaced by in-memory defaults with only a log line, and the next write of any setting — a dragged sidebar divider, Ctrl+=, anything saved in Settings — serialized those defaults over the file wholesale: one typo, and every hand edit was gone. views.json and machine.json already kept a corrupt file aside for exactly this reason; config.json was the one that did not. A failed parse now parks the file's contents as config.json.corrupt and hands back defaults marked quarantined — a non-serialized flag that makes Config::save refuse to run, so all twenty-plus write call sites are covered without touching them. Config::load_with_outcome returns the verdict beside the values (Parsed / Absent / Quarantined) so the hot-reload watcher can tell a broken file from a missing one: a broken one keeps the settings the app is running on instead of swapping defaults in, and says so in a toast; a startup on defaults after a quarantine says so too. A read failure (not merely a parse failure) warned nowhere at all — it logs, and suppresses writes the same way, without parking a copy there may be nothing readable to take. * fix(config): keep one copy of a broken config, and one word about it `Config::load` runs on every pane spawn and every palette command, so a file left unparseable was quarantined again and again: opening a couple of tabs filled the config directory with eight identical .corrupt files and then overwrote the first. A copy that already holds those bytes is the copy the call would make, so it is not made again. The hot-reload watcher covers the themes directory too, and returning early on a broken config.json took theme hot-reload down with it and re-announced the same breakage on every theme save. Themes now reload either way, and the toast speaks once per breakage. A file that cannot be read parks nothing, so it no longer reports itself as quarantined and no longer sends the user after a .corrupt file that was never written; and the reload toast no longer claims settings stop saving, which is true at startup but not mid-session, where the running config is kept and stays writable. --------- Co-authored-by: l0ng-ai <24760907+l0ng-ai@users.noreply.github.com>