fix: add missing functions to default export in utils.ts

Added sha256, customFetch, and getFormattedAddressesByProtocol to the default export object to ensure consistency between named exports and default export.

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

Author: wa0x6e

src/utils.ts

@@ -177,7 +177,10 @@ export const {
 } = snapshot.utils;
 
 export default {
+  sha256,
   getScoresDirect,
+  customFetch,
+  getFormattedAddressesByProtocol,
   multicall,
   Multicaller,
   subgraphRequest,