fix: properly gate wasm modules and remove unnecessary import

Author: rutefig

src/lib.rs

@@ -7,6 +7,8 @@ pub mod logger;
 pub mod parse_email;
 pub mod proof;
 pub mod regex;
+
+#[cfg(target_arch = "wasm32")]
 pub mod wasm;
 
 pub use circuit::*;

src/regex/wasm.rs

@@ -5,7 +5,7 @@ use wasm_bindgen::prelude::*;
 use crate::regex::extract::{extract_substr, extract_substr_idxes};
 use crate::regex::padding::pad_string;
 use crate::regex::patterns::*;
-use crate::regex::types::{DecomposedRegexConfig, ExtractionError};
+use crate::regex::types::DecomposedRegexConfig;
 
 // Core extraction functions
 // Note: WASM uses standalone mode (no NFAGraph) for simplicity