feat: add scoped history and artifacts

src/chat/answer-ui.ts

@@ -37,6 +37,8 @@ export const answerUiSpecSchema = z.object({ root: key, elements: z.record(z.obj
 });
 
 export const answerUiInputSchema = z.object({ block_id: key, fallback_text: z.string().min(1).max(4000), spec: answerUiSpecSchema }).strict();
+export const answerUiBlockSchema = answerUiInputSchema.extend({ version: z.literal("answer-ui@1") })
+  .refine((block) => JSON.stringify(block).length <= 100000, "界面块过大");
 export const parseAnswerUiInput = (value: unknown) => {
   const parsed = answerUiInputSchema.safeParse(value);
   return parsed.success ? { version: "answer-ui@1" as const, ...parsed.data } : null;

src/chat/response-inputs.ts

@@ -1,5 +1,5 @@
 export type InputDelivery = "steer" | "queue";
-export type ResponseInput = { id: string; text: string; delivery: InputDelivery; status: "pending" | "delivered" };
+export type ResponseInput = { id: string; text: string; delivery: InputDelivery; status: "pending" | "delivered" | "cancelled" };
 type InboxRuntime = {
   enqueueUserInput: (sessionId: string, input: ResponseInput) => Promise<void>;
   listPendingUserInputs: (sessionId: string) => Promise<ResponseInput[]>;
@@ -19,7 +19,7 @@ export class ResponseInputTracker {
 
   markReady() { this.releaseReady(); }
   close() { this.accepting = false; this.releaseReady(); }
-  get hasAdditionalInput() { return this.items.size > 0; }
+  get hasAdditionalInput() { return [...this.items.values()].some((input) => input.status !== "cancelled"); }
 
   async restore() {
     for (const input of await this.runtime.listPendingUserInputs(this.sessionId)) this.items.set(input.id, input);
@@ -53,8 +53,9 @@ export class ResponseInputTracker {
 
   observe(type: string, data: { inboxID?: string; delivery?: InputDelivery }) {
     const input = data.inboxID ? this.items.get(data.inboxID) : undefined;
-    if (!input) return;
+    if (!input || input.status !== "pending") return;
     if (type === "session.inbox.delivered") input.status = "delivered";
+    else if (type === "session.inbox.cancelled") input.status = "cancelled";
     else if (type === "session.inbox.delivery.changed" && data.delivery) input.delivery = data.delivery;
     else return;
     this.changed({ ...input });

src/chat/responses-protocol.ts

@@ -18,6 +18,8 @@ export const responseRequestSchema = z.object({
   conversation: z.union([z.string().min(1).max(128), z.object({ id: z.string().min(1).max(128) }).strict()]).optional(),
   metadata: z.record(z.string().max(64), z.string().max(512)).refine((value) => Object.keys(value).length <= 16).optional(),
   tjwater: z.object({
+    topic_id: z.string().uuid().optional(),
+    client_message_id: z.string().min(1).max(128).optional(),
     delivery: z.enum(["steer", "queue"]).optional(),
     input_id: z.string().regex(/^msg_[a-f0-9]{32}$/).optional(),
     approval_mode: z.enum(["request", "always"]).default("request"),