Open computers from the chat, let bots ask for a take-over, show task progress

- Serve each computer to its owner under /computers/<id>/ (HTTP and
  websockets proxied to the AIO sandbox) and show it in a shared
  ComputerView with browser, terminal and code modes, opened from the
  computers modal or a take-over button in the thread.
- ask_user_to_take_over lets a bot hand a computer to the user for a
  login or captcha; the message gets a take-over button and needs-you,
  and the viewer hands it back with a chat message.
- While a task runs the thread shows "<bot> is working..." with the
  task's latest step; steps read as plain words, not tool names.
- A coordinator with no workers no longer claims to delegate, and bots
  describe started tasks in the first person.

Co-Authored-By: Claude Opus 5.5 <[email protected]>

src/bots-queue/with-take-over-refs.ts

@@ -0,0 +1,21 @@
+type Params = {
+    text: string;
+    /**
+     * The take-over refs the bot asked for in this run (`askToTakeOverTool`).
+     */
+    refs: string[];
+};
+
+/**
+ * A job's message with every take-over the bot asked for in it: refs the
+ * bot didn't write itself are added at the end, so the user always gets
+ * the button. A message asking for a take-over needs the user.
+ */
+export default function withTakeOverRefs({ text, refs }: Params) {
+    const missing = [...new Set(refs)].filter((ref) => !text.includes(ref));
+
+    return {
+        result: [text.trim(), ...missing].filter(Boolean).join("\n\n"),
+        needs_you: refs.length > 0,
+    };
+}