refactor(firmware): centralize configuration and diagnostics

firmware/libs/kaptan-config-derive/tests/pass/root_bool.rs

@@ -1,8 +1,8 @@
-use kaptan_config_derive::ConfigValidate;
+use kaptan_config_derive::Config;
 
-#[derive(ConfigValidate)]
+#[derive(Config)]
 struct RootBooleanConfig {
-    #[config(id = 1, key = "enabled", unit = "bool", default = true)]
+    #[config(id = 1, key = "enabled", unit = "bool")]
     enabled: bool,
 }