Next Steps GCP Integration

[jexp]

• - finish A2A auth
• - cloud run with pass through auth (see Alex' article)
• - add service documentation of the a2a-wrapper, code + agent card + docs + auth-setup to GH repository
• - explore what's necessary for marketplace
• - blog post draft
• - see if we can configure anything when the agent is added to gemini enterprise? (setup parameter, agent-card, URL-parameter in agent-URL?)
• test wheel pypi package for MCP