- websocket client on ESP32

- telemetry protocol builder
- server-side message handling
- database migrations
- telemetry persistence

backend/src/main/resources/logback.xml

@@ -1,4 +1,11 @@
-<?xml version="1.0" encoding="UTF-8" ?>
-<document>
+<configuration>
+    <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
+        <encoder>
+            <pattern>%d{HH:mm:ss} %-5level %logger - %msg%n</pattern>
+        </encoder>
+    </appender>
 
-</document>
+    <root level="INFO">
+        <appender-ref ref="STDOUT"/>
+    </root>
+</configuration>