fix: correct YAML syntax in release workflow

Remove duplicate Python script block and fix heredoc syntax to properly pass VERSION variable.

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

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

Author: AndersonBY

.github/workflows/release.yml

@@ -53,45 +53,6 @@ jobs:
         # Try to extract changelog from CHANGELOG.md first
         if [ -f "CHANGELOG.md" ]; then
           # Look for the version section in CHANGELOG.md
-          python3 << 'EOF' > release_notes.md
-import re
-import sys
-
-def extract_version_changelog(version):
-    try:
-        with open('CHANGELOG.md', 'r', encoding='utf-8') as f:
-            content = f.read()
-        
-        # Look for version section (matches [X.X.X] or [Unreleased])
-        version_pattern = rf'\[{re.escape(version)}\].*?(?=\n## |\n\[|$)'
-        match = re.search(version_pattern, content, re.DOTALL | re.MULTILINE)
-        
-        if match:
-            # Extract the content and clean it up
-            section = match.group(0)
-            # Remove the version header line
-            lines = section.split('\n')[1:]
-            # Remove empty lines at the start
-            while lines and not lines[0].strip():
-                lines.pop(0)
-            changelog_content = '\n'.join(lines).strip()
-            
-            if changelog_content:
-                print(changelog_content)
-                return True
-        
-        return False
-    except Exception as e:
-        print(f"Error reading CHANGELOG.md: {e}", file=sys.stderr)
-        return False
-
-# Try to get version-specific changelog
-version = sys.argv[1] if len(sys.argv) > 1 else "0.0.0"
-if not extract_version_changelog(version):
-    # If no specific version found, check for [Unreleased]
-    if not extract_version_changelog("Unreleased"):
-        print("## What's Changed\n\nSee CHANGELOG.md for detailed changes.")
-EOF
           python3 << 'EOF' "$VERSION" > release_notes.md
 import re
 import sys