docs(README, docs): add reset password functionality details and update CLI options across multiple languages

docs/meshchatx.md

@@ -104,6 +104,7 @@ The project favors predictable SQL behavior and explicit migration control, whic
 - Cookie sessions via encrypted storage
 - Auth and access-attempt tracking integrated with IP/User-Agent aware controls
 - Debug endpoints provide visibility into logs and access-attempt records
+- Password reset via `--reset-password` (or `MESHCHAT_RESET_PASSWORD=true`) clears the stored bcrypt hash so a new password can be set through the web UI
 
 This is also very well tested, but I still would not recommend exposing MeshChatX to the internet.
 

docs/meshchatx_on_raspberry_pi.md

@@ -225,6 +225,22 @@ journalctl -u meshchatx.service -n 200 --no-pager
 systemctl show meshchatx.service -p ExecStart -p User -p Group
 ```
 
+## Reset Password
+
+If you forget the web UI password and have SSH access to the Pi, reset it with the `--reset-password` flag:
+
+```bash
+meshchatx --reset-password --headless --host 0.0.0.0 --port 8000
+```
+
+Or set the environment variable:
+
+```bash
+MESHCHAT_RESET_PASSWORD=true meshchatx --headless --host 0.0.0.0 --port 8000
+```
+
+This clears the stored password hash on startup. Open the web UI and you will see the Initial Setup screen where you can set a new password. After resetting, you can stop the app and restart without the flag.
+
 ## Notes
 
 - Reticulum configuration and identity data are stored in the service user's home