fix(httpapi): return request not found errors (#28693)

packages/opencode/src/permission/index.ts

@@ -100,6 +100,10 @@ export class DeniedError extends Schema.TaggedErrorClass<DeniedError>()("Permiss
   }
 }
 
+export class NotFoundError extends Schema.TaggedErrorClass<NotFoundError>()("Permission.NotFoundError", {
+  requestID: PermissionID,
+}) {}
+
 export type Error = DeniedError | RejectedError | CorrectedError
 
 export const AskInput = Schema.Struct({
@@ -117,7 +121,7 @@ export type ReplyInput = Schema.Schema.Type<typeof ReplyInput>
 
 export interface Interface {
   readonly ask: (input: AskInput) => Effect.Effect<void, Error>
-  readonly reply: (input: ReplyInput) => Effect.Effect<void>
+  readonly reply: (input: ReplyInput) => Effect.Effect<void, NotFoundError>
   readonly list: () => Effect.Effect<ReadonlyArray<Request>>
 }
 
@@ -209,7 +213,7 @@ export const layer = Layer.effect(
     const reply = Effect.fn("Permission.reply")(function* (input: ReplyInput) {
       const { approved, pending } = yield* InstanceState.get(state)
       const existing = pending.get(input.requestID)
-      if (!existing) return
+      if (!existing) return yield* new NotFoundError({ requestID: input.requestID })
 
       pending.delete(input.requestID)
       yield* bus.publish(Event.Replied, {