fix: restore telegram draft streaming partials

src/telegram/draft-stream.test.ts

@@ -0,0 +1,35 @@
+import { describe, expect, it, vi } from "vitest";
+
+import { createTelegramDraftStream } from "./draft-stream.js";
+
+describe("createTelegramDraftStream", () => {
+  it("passes message_thread_id when provided", () => {
+    const api = { sendMessageDraft: vi.fn().mockResolvedValue(true) };
+    const stream = createTelegramDraftStream({
+      api: api as any,
+      chatId: 123,
+      draftId: 42,
+      messageThreadId: 99,
+    });
+
+    stream.update("Hello");
+
+    expect(api.sendMessageDraft).toHaveBeenCalledWith(123, 42, "Hello", {
+      message_thread_id: 99,
+    });
+  });
+
+  it("omits message_thread_id for general topic id", () => {
+    const api = { sendMessageDraft: vi.fn().mockResolvedValue(true) };
+    const stream = createTelegramDraftStream({
+      api: api as any,
+      chatId: 123,
+      draftId: 42,
+      messageThreadId: 1,
+    });
+
+    stream.update("Hello");
+
+    expect(api.sendMessageDraft).toHaveBeenCalledWith(123, 42, "Hello", undefined);
+  });
+});