refactor(schema): extract public event definitions (#33579)

packages/schema/src/index.ts

@@ -2,6 +2,7 @@ export { Agent } from "./agent"
 export { Command } from "./command"
 export { Connection } from "./connection"
 export { Credential } from "./credential"
+export { Event } from "./event"
 export { FileSystem } from "./filesystem"
 export { Integration } from "./integration"
 export { LLM } from "./llm"