TradeAutonom UserContainer-v2-fr Worker

Split-stack container running ONLY the FR-Harvest-Bot.

Requests to /u/<user_id>/<path> require a valid X-Internal-Token
header matching the V2_SHARED_TOKEN Worker secret.

Typical usage is indirect: bot.defitool.de proxies /fr/* here
after authenticating the user session and checking user.fr_backend.