feat(config): add validated profile core

libs/kaptan-config-derive/tests/ui/missing_metadata.rs

@@ -0,0 +1,9 @@
+use kaptan_config_derive::ConfigValidate;
+
+#[derive(ConfigValidate)]
+struct MissingMetadata {
+    #[config(id = 7, unit = "count", default = 1, range(min = 0, max = 10))]
+    value: u32,
+}
+
+fn main() {}