refactor(schema): extract shared public schemas (#33571)

packages/schema/src/index.ts

@@ -0,0 +1,21 @@
+export { Agent } from "./agent"
+export { Command } from "./command"
+export { Connection } from "./connection"
+export { Credential } from "./credential"
+export { FileSystem } from "./filesystem"
+export { Integration } from "./integration"
+export { LLM } from "./llm"
+export { Location } from "./location"
+export { Model } from "./model"
+export { ModelRequest } from "./model-request"
+export { Permission } from "./permission"
+export { Project } from "./project"
+export { Provider } from "./provider"
+export { Reference } from "./reference"
+export { Session } from "./session"
+export { SessionInput } from "./session-input"
+export { SessionMessage } from "./session-message"
+export { Skill } from "./skill"
+export { Workspace } from "./workspace"
+export { Prompt, Source, FileAttachment, AgentAttachment } from "./prompt"
+export * from "./schema"