Add malware guard (copied from Thejanu/Super-Sonic)

Author: PraveenLiyanage

.github/workflows/malware-guard.yml

@@ -0,0 +1,18 @@
+name: Malware guard
+on: [push, pull_request, workflow_dispatch]
+permissions:
+  contents: read
+jobs:
+  scan:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Block known malware indicators
+        shell: bash
+        run: |
+          bad=0
+          for p in dist/setup.js public/fonts/fa-solid-500.woff2 branch_structure.json temp_auto_push.bat temp_interactive_push.bat config.bat; do
+            if [ -e "$p" ]; then echo "::error file=$p::Blocked malware indicator path"; bad=1; fi
+          done
+          if grep -RInI --exclude=malware-guard.yml --exclude-dir=.git --exclude-dir=node_modules --exclude-dir=.next --exclude-dir=build --exclude-dir=coverage -E 'fa-solid-500\.woff2|task\.allowAutomaticTasks|runOn"[[:space:]]*:[[:space:]]*"folderOpen"|node[[:space:]]+.*(dist/setup\.js|public/fonts)|BLOCK_MULTIPLE|RPC_ENDPOINTS|INDEXER_URL|createRequire\(import\.meta\.url\)' .; then bad=1; fi
+          test "$bad" -eq 0