v2 message format and upgrade to ai sdk v5 (#743)

Co-authored-by: GitHub Action <action@github.com>
Co-authored-by: Liang-Shih Lin <liangshihlin@proton.me>
Co-authored-by: Dominik Engelhardt <dominikengelhardt@ymail.com>
Co-authored-by: Jay V <air@live.ca>
Co-authored-by: adamdottv <2363879+adamdottv@users.noreply.github.com>

packages/opencode/src/tool/tool.ts

@@ -2,19 +2,15 @@ import type { StandardSchemaV1 } from "@standard-schema/spec"
 
 export namespace Tool {
   interface Metadata {
-    title: string
     [key: string]: any
   }
   export type Context<M extends Metadata = Metadata> = {
     sessionID: string
     messageID: string
     abort: AbortSignal
-    metadata(meta: M): void
+    metadata(input: { title?: string; metadata?: M }): void
   }
-  export interface Info<
-    Parameters extends StandardSchemaV1 = StandardSchemaV1,
-    M extends Metadata = Metadata,
-  > {
+  export interface Info<Parameters extends StandardSchemaV1 = StandardSchemaV1, M extends Metadata = Metadata> {
     id: string
     description: string
     parameters: Parameters
@@ -22,15 +18,15 @@ export namespace Tool {
       args: StandardSchemaV1.InferOutput<Parameters>,
       ctx: Context,
     ): Promise<{
+      title: string
       metadata: M
       output: string
     }>
   }
 
-  export function define<
-    Parameters extends StandardSchemaV1,
-    Result extends Metadata,
-  >(input: Info<Parameters, Result>): Info<Parameters, Result> {
+  export function define<Parameters extends StandardSchemaV1, Result extends Metadata>(
+    input: Info<Parameters, Result>,
+  ): Info<Parameters, Result> {
     return input
   }
 }