Release v0.5.3

[0.5.3] - 2025-12-02

🚀 Features

• Add regex match (=~) operator and fix collect() function
• Add EXISTS subquery and WITH+MATCH chaining support
• Add label() function for scalar label return

🐛 Bug Fixes

• Remove unused schemas volume from docker-compose
• Parser now rejects invalid syntax with unparsed input
• Column alias for type(), id(), labels() graph introspection functions
• Update release workflow to use clickgraph binary name
• Update release workflow to use clickgraph-client binary name
• Build entire workspace in release workflow

📚 Documentation

• Archive wiki for v0.5.2 release
• Fix schema documentation and shorten README
• Fix Quick Start to include required GRAPH_CONFIG_PATH
• Add 3 new known issues from ontime schema testing
• Update KNOWN_ISSUES.md - WHERE AND now caught
• Clean up KNOWN_ISSUES.md - remove resolved issues
• Remove false known limitations - all verified working

⚙️ Miscellaneous Tasks

• Update CHANGELOG.md [skip ci]
• Release v0.5.3
• Update CHANGELOG.md [skip ci]
• Update Cargo.lock for v0.5.3
• Update CHANGELOG.md [skip ci]
• Update CHANGELOG.md [skip ci]
• Update CHANGELOG.md [skip ci]