fix(#2632): drop stale /api/bash-tasks reference from api_todos doc

hive-agent/src/web_ui/stats.rs

@@ -51,8 +51,7 @@ async fn fetch_reminder_stats(
 /// Connects to the in-agent harness socket (`HIVE_AGENT_SOCKET`) and calls
 /// `ListTodos`. Returns `{ "todos": [...] }` where each entry is a
 /// `LooseEnd::Todo` (subsystem, key, summary, source, `age_seconds`). Returns
-/// an empty array when the socket is unavailable — best-effort, same
-/// silent-failure contract as `/api/bash-tasks`.
+/// an empty array when the socket is unavailable — best-effort, silent failure.
 pub(super) async fn api_todos() -> Response {
     use tokio::io::{AsyncBufReadExt as _, AsyncWriteExt as _, BufReader};
     use tokio::net::UnixStream;