feat(stealth): many stealth improvements

crates/obscura-mcp/src/lib.rs

@@ -129,7 +129,7 @@ impl BrowserState {
     }
 }
 
-pub async fn dispatch(method: &str, id: Value, params: &Value, state: &mut BrowserState) -> RpcResponse {
+pub(crate) async fn dispatch(method: &str, id: Value, params: &Value, state: &mut BrowserState) -> RpcResponse {
     match method {
         "initialize" => handle_initialize(id, params),
         "ping" => RpcResponse::ok(id, json!({})),