Aiconfig Update

This handles updates, archival, and deletion of LaunchDarkly AI Configs through their MCP server. You get tools to check config health (it flags missing models, orphaned tools, empty variations), update metadata like tags and descriptions, and modify variation settings including model selection and parameters. The workflow is deliberate: assess health first, fetch current state, make your change, then verify it took. Smart default: it pushes you toward archiving instead of deleting since archival is reversible. One thing to know is the API responses don't echo back your changes, so you actually need that verification step with get-ai-config rather than trusting the update response. Useful if you're managing AI config variations in LaunchDarkly and need guardrails against accidentally nuking things.