refactor(core): move v1 schemas into core (#30473)

packages/opencode/src/session/message-v2.ts

@@ -1,6 +1,6 @@
 import { EventV2 } from "@opencode-ai/core/event"
 import { SessionID, MessageID, PartID } from "./schema"
-import { SessionLegacy } from "@opencode-ai/core/session/legacy"
+import { SessionV1 } from "@opencode-ai/core/v1/session"
 import { ProviderV2 } from "@opencode-ai/core/provider"
 import {
   APIError,
@@ -17,7 +17,7 @@ import {
   User,
   WithParts,
   type ToolPart,
-} from "@opencode-ai/core/session/legacy"
+} from "@opencode-ai/core/v1/session"
 
 import { NamedError } from "@opencode-ai/core/util/error"
 import { APICallError, convertToModelMessages, LoadAPIKeyError, type ModelMessage, type UIMessage } from "ai"
@@ -56,9 +56,9 @@ function truncateToolOutput(text: string, maxChars?: number) {
 }
 
 export const Event = {
-  Updated: SessionLegacy.Event.MessageUpdated,
-  Removed: SessionLegacy.Event.MessageRemoved,
-  PartUpdated: SessionLegacy.Event.PartUpdated,
+  Updated: SessionV1.Event.MessageUpdated,
+  Removed: SessionV1.Event.MessageRemoved,
+  PartUpdated: SessionV1.Event.PartUpdated,
   PartDelta: EventV2.define({
     type: "message.part.delta",
     schema: {
@@ -69,7 +69,7 @@ export const Event = {
       delta: Schema.String,
     },
   }),
-  PartRemoved: SessionLegacy.Event.PartRemoved,
+  PartRemoved: SessionV1.Event.PartRemoved,
 }
 
 const Cursor = Schema.Struct({