Upgrade to Zod v4 (#2605)

Co-authored-by: GitHub Action <action@github.com>

packages/opencode/src/provider/models.ts

@@ -1,7 +1,7 @@
 import { Global } from "../global"
 import { Log } from "../util/log"
 import path from "path"
-import { z } from "zod"
+import z from "zod/v4"
 import { data } from "./models-macro" with { type: "macro" }
 import { Installation } from "../installation"
 
@@ -29,10 +29,10 @@ export namespace ModelsDev {
         output: z.number(),
       }),
       experimental: z.boolean().optional(),
-      options: z.record(z.any()),
+      options: z.record(z.string(), z.any()),
       provider: z.object({ npm: z.string() }).optional(),
     })
-    .openapi({
+    .meta({
       ref: "Model",
     })
   export type Model = z.infer<typeof Model>
@@ -44,9 +44,9 @@ export namespace ModelsDev {
       env: z.array(z.string()),
       id: z.string(),
       npm: z.string().optional(),
-      models: z.record(Model),
+      models: z.record(z.string(), Model),
     })
-    .openapi({
+    .meta({
       ref: "Provider",
     })