LightGuard-Agent v0.5.0: Swarm Shield, Standalone MCP Gateway & CISO Compliance

LightGuard-Agent v0.5.0: The Autonomous AI Security Standard 🚀

What's New in v0.5.0:

1. 🐝 Multi-Agent Swarm Lateral Injection Shield (lightguard.integrations.swarm):
   • MultiAgentSwarmShield and AgentTaintTracker prevent lateral prompt injection and agent-to-agent privilege escalation across CrewAI, AutoGen, and LangGraph swarms.
2. 🔌 Standalone MCP Security Gateway (lightguard-mcp):
   • Intercepts and shields any upstream MCP server in Claude Desktop or Cursor IDE over stdio JSON-RPC 2.0 with sub-millisecond overhead.
3. 🔗 LangGraph First-Class Guard Node:
   • create_langgraph_guard() hooks into LangGraph workflows to inspect and sanitize state messages between tools and the agent.
4. 🖼️ Multimodal & Vision Metadata Shield (lightguard.multimodal):
   • Neutralizes prompt injections embedded in SVG vector graphics, image EXIF/IPTC metadata tags, and document streams.
5. 🛡️ Structured Output & Function Calling Guard (lightguard.structured):
   • Prevents JSON parameter smuggling, command chaining, and path traversal in function calling arguments.
6. 📋 Executive CISO & OWASP Compliance Reporting (lightguard.reporting):
   • lightguard report --format html generates executive audit reports mapped to OWASP Top 10 for LLMs and MITRE ATLAS.
7. 🧪 Comprehensive Testing:
   • 76/76 unit tests passing (0.33s), clean Ruff linting, zero external dependencies.
   • Published live to PyPI: pip install lightguard-agent==0.5.0