AttributeError in console() with rich >= 14.3.0: LiveRender missing 'last_render_height'

[dfalbel]

Description

Calling chat.console() crashes with an AttributeError when using rich >= 14.3.0.

The root cause is that chatlas monkeypatches Live._live_render with its own LiveRender class (in chatlas/_live_render.py) to add crop_above support. However, rich 14.3.0 added a new last_render_height property to its own LiveRender (in Textualize/rich#3934) and Live.stop() now accesses self._live_render.last_render_height. Since chatlas's custom LiveRender doesn't have this property, it crashes.

Reproducible example

from chatlas import ChatOpenAI
chat = ChatOpenAI()
chat.console()
# Type any message and press Enter

Traceback

Traceback (most recent call last):
  File "examples/simple_chat.py", line 14, in <module>
    chat.console()
  File ".../chatlas/_chat.py", line 831, in console
    self.chat(user_input, echo=echo, stream=stream, kwargs=kwargs)
  File ".../chatlas/_chat.py", line 1081, in chat
    with display:
  File ".../chatlas/_chat.py", line 3171, in __exit__
    result = self._display.__exit__(*args, **kwargs)
  File ".../chatlas/_display.py", line 99, in __exit__
    return self.live.__exit__(exc_type, exc_value, traceback)
  File ".../rich/live.py", line 193, in __exit__
    self.stop()
  File ".../rich/live.py", line 172, in stop
    and self._live_render.last_render_height
AttributeError: 'LiveRender' object has no attribute 'last_render_height'

Root cause

In chatlas/_display.py:64, live._live_render is replaced with chatlas's own LiveRender (from chatlas/_live_render.py). This custom class doesn't define last_render_height, which rich's Live.stop() now relies on since Textualize/rich#3934 (included in rich 14.3.0).

Environment

• chatlas: 0.15.1
• rich: 14.3.2
• Python: 3.13
• OS: macOS (Darwin 24.5.0)