feat(core): add embedded v2 session runtime and tool foundation (#30632)

packages/core/src/tool-output.ts

@@ -1,18 +1,11 @@
 export * as ToolOutput from "./tool-output"
+export {
+  ToolContent as Content,
+  ToolFileContent as FileContent,
+  ToolTextContent as TextContent,
+  toolFile as file,
+  toolText as text,
+} from "@opencode-ai/llm"
 import { Schema } from "effect"
 
-export class TextContent extends Schema.Class<TextContent>("Tool.TextContent")({
-  type: Schema.Literal("text"),
-  text: Schema.String,
-}) {}
-
-export class FileContent extends Schema.Class<FileContent>("Tool.FileContent")({
-  type: Schema.Literal("file"),
-  uri: Schema.String,
-  mime: Schema.String,
-  name: Schema.String.pipe(Schema.optional),
-}) {}
-
-export const Content = Schema.Union([TextContent, FileContent]).pipe(Schema.toTaggedUnion("type"))
-
 export const Structured = Schema.Record(Schema.String, Schema.Any)