fix: add missing scripts directory to git

- Remove scripts/ from .gitignore
- Add build_and_test.sh for local testing
- Add bump_version.sh for version updates (used by CI)
- Add release.sh and upload_to_pypi.sh for publishing
- Fixes CI error: ./scripts/bump_version.sh: No such file or directory

scripts/upload_to_pypi.sh

@@ -0,0 +1,30 @@
+#!/bin/bash
+
+# Manual upload script for testing
+
+TARGET=${1:-"test"}  # Default to test pypi
+
+if [ "$TARGET" != "test" ] && [ "$TARGET" != "prod" ]; then
+    echo "Usage: $0 [test|prod]"
+    exit 1
+fi
+
+# Check for built packages
+if ! ls packages/*/dist/*.whl >/dev/null 2>&1; then
+    echo "No built packages found. Run ./scripts/build_and_test.sh first"
+    exit 1
+fi
+
+if [ "$TARGET" == "test" ]; then
+    echo "Uploading to Test PyPI..."
+    twine upload --repository testpypi packages/*/dist/*
+else
+    echo "Uploading to PyPI..."
+    echo "Are you sure? (y/N)"
+    read -r response
+    if [ "$response" == "y" ]; then
+        twine upload packages/*/dist/*
+    else
+        echo "Cancelled"
+    fi
+fi