feat(app): Integrate application versioning

This commit introduces application versioning, exposing version information through the Modbus server and logging it at startup.

- Add  to provide version information
- Update  to log the application version at startup
- Update  to expose firmware version via Modbus
- Add file association for  in

software/lib/valve/valve.c

@@ -52,7 +52,6 @@ void valve_init(void)
     
     LOG_INF("Valve initialized: max_open=%us, max_close=%us", max_opening_time_s, max_closing_time_s);
 }
-}
 
 void valve_open(void)
 {