docs(turn-loop): document active bash tasks in get_loose_ends output

feat 3c853c2b58 added active bash tasks
to the get_loose_ends response but only updated the MCP server tool
description string; the docs/turn-loop.md entry for the tool still only
mentioned questions and reminders.

Add 'active local tasks published by external MCP daemons (e.g. running
bash tasks from hive-bash-mcp)' to the tool description so agents
reading the reference docs see the full picture.

docs/turn-loop.md

@@ -539,13 +539,14 @@ ttl_seconds?, to?)`, `answer(id, answer)`.
 `cancel_loose_end(kind, id)`, `remind(message, delay_seconds? |
 at_unix_timestamp?)`, `request_next_turn()`.
 
-- `get_loose_ends(agent?)` — list pending questions (asked/owed) and
-  scheduled reminders. Each row carries an id + kind for
-  `cancel_loose_end`. Omit `agent` to list your own threads. Pass
-  `agent: "<name>"` to inspect a direct child agent (always
-  accessible per topology enforcement); non-children require the
-  `query_agent_state` capability. The `"*"` hive-wide query is not
-  available on the agent socket.
+- `get_loose_ends(agent?)` — list pending questions (asked/owed),
+  scheduled reminders, and active local tasks published by external MCP
+  daemons (e.g. running bash tasks from `hive-bash-mcp`). Each row
+  carries an id + kind for `cancel_loose_end`. Omit `agent` to list
+  your own threads. Pass `agent: "<name>"` to inspect a direct child
+  agent (always accessible per topology enforcement); non-children
+  require the `query_agent_state` capability. The `"*"` hive-wide
+  query is not available on the agent socket.
 - `cancel_loose_end` — withdraw a `question` (posts `[cancelled by
   <self>]`), hard-delete a `reminder`, or cancel a pending `approval`
   row. Agents may only cancel rows they own; the `approval` kind is