fix: Add Apple M-series chip compatibility to act configuration

- Added --container-architecture linux/amd64 for M-series Macs
- Ensures compatibility with GitHub Actions x86_64 environment
- Eliminates architecture warnings during local testing

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

Co-Authored-By: Claude <[email protected]>

Author: alicoding

.actrc

@@ -2,6 +2,9 @@
 # Use larger runner image to match GitHub more closely
 -P ubuntu-latest=catthehacker/ubuntu:act-latest
 
+# Apple M-series chip compatibility
+--container-architecture linux/amd64
+
 # Enable detailed output for debugging
 --verbose