feat: validation script to run when new tokens are pushed

.github/workflows/validate-tokens.yml

@@ -0,0 +1,46 @@
+name: Validate New Token Configurations
+
+on:
+  pull_request:
+    paths:
+      - 'registry/mainnet/interchain/squid.tokenlist.json'
+
+jobs:
+  validate-tokens:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+
+    - name: Use Node.js
+      uses: actions/setup-node@v2
+      with:
+        node-version: '16'
+
+    - name: Install dependencies
+      run: |
+        npm install -g typescript
+        npm install ethers@5.7.2
+        npm install viem
+        npm install axios
+        npm install fs
+        npm install @types/node
+
+    - name: Compile TypeScript
+      run: tsc validate-token-configs.ts
+
+    - name: Extract and validate new tokens
+      run: |
+        DIFF=$(git diff origin/${{ github.base_ref }} -- registry/mainnet/interchain/squid.tokenlist.json | grep '^+' | grep -v '+++')
+        NEW_TOKENS=$(echo "$DIFF" | sed -n '/"0x/,/]/{/]/q;p}' | jq -s 'reduce .[] as $item ({}; . + ($item | fromjson))')
+        echo "$NEW_TOKENS" > new_tokens.json
+        node validate-token-configs.ts
+
+    - name: Check validation results
+      run: |
+        if [ -f validation_errors.txt ]; then
+          echo "Validation errors found:"
+          cat validation_errors.txt
+          exit 1
+        else
+          echo "All new token configurations are valid."
+        fi