refactor(tui): switch to global events and start passing workspace param (#21719)

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

@@ -0,0 +1,22 @@
+import { Context } from "../util/context"
+import type { WorkspaceID } from "../control-plane/schema"
+
+export interface WorkspaceContext {
+  workspaceID: string
+}
+
+const context = Context.create<WorkspaceContext>("instance")
+
+export const WorkspaceContext = {
+  async provide<R>(input: { workspaceID: WorkspaceID; fn: () => R }): Promise<R> {
+    return context.provide({ workspaceID: input.workspaceID as string }, () => input.fn())
+  },
+
+  get workspaceID() {
+    try {
+      return context.use().workspaceID
+    } catch (err) {
+      return undefined
+    }
+  },
+}