Update to Aivana Database Engineer

{
  "name": "ai-migration-risk-radar",
  "description": "Score migration blast radius and produce a rollback rehearsal plan before schema changes reach production.",
  "included_files": [],
  "skill_md_contents": "---\nname: ai-migration-risk-radar\ndescription: Score migration blast radius and produce a rollback rehearsal plan before schema changes reach production.\n---\n\n# AI Migration Risk Radar\n\nUse this skill before proposing, signing, or applying migrations.\n\nRun:\n\n```bash\nnode runtime/runTool.js ai_migration_risk_radar '{\"engine\":\"sqlserver\",\"database\":\"app_prod\",\"schema\":\"public\",\"migrationSql\":\"CREATE INDEX ix_orders_status ON orders(status)\"}'\n```\n\nThe tool computes blast radius from catalog metadata, risk classification,\nPII sensitivity, table size hints, and policy preflight. It returns a release\nrecommendation and dry-run rollback rehearsal checklist.\n"
}