[vrajp-lyzr]

Updates docs/DEPLOYING_ON_AGENTCORE_AND_MICROVM.md.

• §6.1, §7.1 prerequisites: more context on the build role, the execution roles (trust conditions, ECR and log permissions), the principal that creates the runtime, the S3 artifact, the base image, network and runtime naming.
• §8: register (POST /agents/register: fields, a full example, the response, rules) and PATCH (keep/set/clear semantics per field, examples for model, guardrail, MCP, image and rename, errors). Also how to read an agent back, and the IAM permissions and settings CAS needs to boot an image.
• §9 (new): an agent configuration reference: the registry fields, the providers per gateway section (what AgentOS accepts vs. what the agent gateway implements; the deployment's catalog decides what is enabled), per-provider settings and limits.
• §10 Troubleshooting: rows for provider_unknown, AUTH_LYZR_KEY_REQUIRED, mcp:bind, model_not_allowed and the AgentCore ECR validation error.
• Removes environment-specific account ids, role names, hosts and the deployed-sandbox appendix from the guide, the example images' headers and one test URL.