docs: Add GitHub authentication setup guide and push script

- Add scripts/push-to-github.sh for automated push after SSH setup
- Add docs/GITHUB_SETUP.md with comprehensive setup instructions
- Includes SSH key setup, token-based authentication, and troubleshooting

scripts/push-to-github.sh

@@ -0,0 +1,36 @@
+#!/bin/bash
+# Script to push commits to GitHub after SSH key is added
+
+set -e
+
+echo "=== GitHub Push Script ==="
+echo ""
+
+# Check SSH authentication
+echo "Testing SSH connection to GitHub..."
+if ssh -T git@github.com 2>&1 | grep -q "successfully authenticated"; then
+    echo "✓ SSH authentication successful"
+    echo ""
+    echo "Pushing commit to GitHub..."
+    git push
+    echo ""
+    echo "✓ Successfully pushed to GitHub!"
+    echo ""
+    echo "Commit details:"
+    git log --oneline -1
+else
+    echo "✗ SSH authentication failed"
+    echo ""
+    echo "Please add your SSH key to GitHub:"
+    echo "1. Visit: https://github.com/settings/keys"
+    echo "2. Click 'New SSH key'"
+    echo "3. Title: 'WSL2 - the-order-monorepo'"
+    echo "4. Paste this public key:"
+    echo ""
+    cat ~/.ssh/id_ed25519.pub
+    echo ""
+    echo "5. Click 'Add SSH key'"
+    echo "6. Run this script again: ./scripts/push-to-github.sh"
+    exit 1
+fi
+