Feat/auto restart update file

[Enz0Z]

Summary

Adds an opt-in feature that lets txAdmin automatically schedule a server restart when an update file (default .update) appears in the root of the Server Data folder — the same folder that usually contains server.cfg.

This makes CI/CD-based deployments a one-step operation: after the pipeline copies the new files into place, it just drops a single file, and txAdmin handles the player-warned, graceful restart so the new files are loaded.

Full documentation: docs/auto-restart-on-update-file.md

Motivation

Servers deployed via CI/CD (GitHub Actions, GitLab CI, Jenkins, deploy scripts, etc.) need a reliable way to apply a new build. Restarting the process directly skips player warnings and graceful shutdown, and calling the API from a pipeline requires authentication and extra plumbing. This reduces the whole operation to writing one file to disk.

How it works

• On each scheduler tick (~60s), if the feature is enabled and the server is running, txAdmin checks for <ServerDataFolder>/<UpdateFileName>.
• If found: it reads the content, deletes the file first (so it's never processed twice), then schedules a temporary restart +N minutes via the existing scheduler.
• Players get the standard countdown warnings (30/15/10/5/4/3/2/1 min, in-game + Discord) and a graceful shutdown.
• If the file has content (e.g. a version or commit hash), it's used as the restart message in the logs and in-game warning.

What's new

Config (restarter scope):

Setting	Key	Default
Auto-Restart on Update File	updateFileEnabled	false
Update File Restart Delay (min, 1–1439)	updateFileDelay	2
Update File Name	updateFileName	.update

Settings UI: the FXServer tab is now split into two cards/islands (mirroring the existing Game tab layout): Settings (unchanged) and a new CI/CD card holding the options above.

Safeguards

• Only acts while the server is running; otherwise the file is left to be processed once the server is back up.
• File is deleted before scheduling → no restart loops.
• Does not override an already-pending temporary restart.
• Path traversal prevented (only the file's base name is resolved inside the Server Data folder).
• No new translation strings — reuses the existing scheduled-restart messages.

Usage example

# After deploying your resources...
echo "v1.4.2 ($(git rev-parse --short HEAD))" > /path/to/serverdata/.update

Testing

• core and panel type checks pass.
• Full production build (npm run build) succeeds.
• Manually verified end-to-end: enabling the feature, dropping a .update file, and observing the warned, scheduled restart with the file content as the restart message.

[yorick2002]

claude code write auto restart update file PR make no mistakes pls ty