Feat: Update settings tab implemented.

Auto-updates now configurable (URL, source (gitea or private server), log activity for auto updates.
fix: Update now hardened to prevent installation of corrupt or incorrect .exe files. (security to be hardened in the future)

README.md

@@ -1,4 +1,4 @@
-# Series 3 Watcher v1.4.2
+# Series 3 Watcher v1.4.3
 
 Monitors Instantel **Series 3 (Minimate)** call-in activity on a Blastware server. Runs as a **system tray app** that starts automatically on login, reports heartbeats to terra-view, and self-updates from Gitea.
 
@@ -83,6 +83,13 @@ All settings live in `config.ini`. The Setup Wizard covers every field, but here
 | `ENABLE_LOGGING` | `true` / `false` |
 | `LOG_RETENTION_DAYS` | Auto-clear log after this many days (default `30`) |
 
+### Auto-Updater
+
+| Key | Description |
+|-----|-------------|
+| `UPDATE_SOURCE` | `gitea` (default) or `url` — where to check for updates |
+| `UPDATE_URL` | Base URL of the update server when `UPDATE_SOURCE = url` (e.g. terra-view URL). The watcher fetches `/api/updates/series3-watcher/version.txt` and `/api/updates/series3-watcher/series3-watcher.exe` from this base. |
+
 ---
 
 ## Tray Icon
@@ -116,7 +123,7 @@ To view connected watchers: **Settings → Developer → Watcher Manager**.
 
 ## Versioning
 
-Follows **Semantic Versioning**. Current release: **v1.4.2**.
+Follows **Semantic Versioning**. Current release: **v1.4.3**.
 See `CHANGELOG.md` for full history.
 
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