feat(id): brand WorkspaceID through Drizzle and Zod schemas (#16964)

packages/opencode/src/control-plane/workspace-context.ts

@@ -1,13 +1,14 @@
 import { Context } from "../util/context"
+import type { WorkspaceID } from "./schema"
 
 interface Context {
-  workspaceID?: string
+  workspaceID?: WorkspaceID
 }
 
 const context = Context.create<Context>("workspace")
 
 export const WorkspaceContext = {
-  async provide<R>(input: { workspaceID?: string; fn: () => R }): Promise<R> {
+  async provide<R>(input: { workspaceID?: WorkspaceID; fn: () => R }): Promise<R> {
     return context.provide({ workspaceID: input.workspaceID }, async () => {
       return input.fn()
     })