created new config lib

libs/config-new/src/errors.ts

@@ -0,0 +1,20 @@
+export class ConfigError extends Error {
+  constructor(message: string) {
+    super(message);
+    this.name = 'ConfigError';
+  }
+}
+
+export class ConfigValidationError extends ConfigError {
+  constructor(message: string, public errors: unknown) {
+    super(message);
+    this.name = 'ConfigValidationError';
+  }
+}
+
+export class ConfigLoaderError extends ConfigError {
+  constructor(message: string, public loader: string) {
+    super(`${loader}: ${message}`);
+    this.name = 'ConfigLoaderError';
+  }
+}