fix: indent continuation line in network error detail for ApiError.format()

ApiError.format() only indents the first line of detail with '\n  '.
Continuation lines need explicit indentation to maintain the aligned
error layout.

Author: BYK

src/lib/api/infrastructure.ts

@@ -47,7 +47,7 @@ export function throwApiError(
     throw new ApiError(
       `${context}: Network error`,
       0,
-      `Unable to reach Sentry API. Cause: ${cause}\n\nCheck your internet connection and try again.`
+      `Unable to reach Sentry API. Cause: ${cause}\n\n  Check your internet connection and try again.`
     );
   }