feature: better handling off io issues

[ErichBSchulz]

Issue

so.... this is completely on me for unplugging my pi while I was in cecli on a mounted drive... but I'm wondering if we can tidy this up (low priority):

Unhandled exception in event loop:
File "/home/erich/.local/share/uv/python/cpython-3.11.11-linux-x86_64-gnu/lib/python3.11/asyncio/events.py", line 84, in _run
self._context.run(self._callback, *self._args)
File "/home/erich/.local/share/uv/tools/aider-ce/lib/python3.11/site-packages/prompt_toolkit/input/vt100.py", line 162, in callback_wrapper
callback()
File "/home/erich/.local/share/uv/tools/aider-ce/lib/python3.11/site-packages/prompt_toolkit/application/application.py", line 714, in read_from_input_in_context
context.copy().run(read_from_input)
File "/home/erich/.local/share/uv/tools/aider-ce/lib/python3.11/site-packages/prompt_toolkit/application/application.py", line 694, in read_from_input
self.key_processor.process_keys()
File "/home/erich/.local/share/uv/tools/aider-ce/lib/python3.11/site-packages/prompt_toolkit/key_binding/key_processor.py", line 273, in process_keys
self._process_coroutine.send(key_press)
File "/home/erich/.local/share/uv/tools/aider-ce/lib/python3.11/site-packages/prompt_toolkit/key_binding/key_processor.py", line 188, in _process
self._call_handler(matches[-1], key_sequence=buffer[:])
File "/home/erich/.local/share/uv/tools/aider-ce/lib/python3.11/site-packages/prompt_toolkit/key_binding/key_processor.py", line 323, in _call_handler
handler.call(event)
File "/home/erich/.local/share/uv/tools/aider-ce/lib/python3.11/site-packages/prompt_toolkit/key_binding/key_bindings.py", line 127, in call
result = self.handler(event)
^^^^^^^^^^^^^^^^^^^
File "/home/erich/aider-ce/aider/io.py", line 873, in _
@kb.add("enter", eager=True, filter=~is_searching)

File "/home/erich/aider-ce/aider/main.py", line 577, in custom_tracer
log_file.write(

Exception [Errno 5] Input/output error

Unhandled exception in event loop:
File "/home/erich/.local/share/uv/tools/aider-ce/lib/python3.11/site-packages/prompt_toolkit/buffer.py", line 1923, in new_coroutine
await coroutine(*a, **kw)
File "/home/erich/.local/share/uv/tools/aider-ce/lib/python3.11/site-packages/prompt_toolkit/buffer.py", line 1740, in async_completer
async for completion in async_generator:
File "/home/erich/.local/share/uv/tools/aider-ce/lib/python3.11/site-packages/prompt_toolkit/completion/base.py", line 310, in get_completions_async
async for completion in completer.get_completions_async(
File "/home/erich/.local/share/uv/tools/aider-ce/lib/python3.11/site-packages/prompt_toolkit/completion/base.py", line 268, in get_completions_async
async for completion in async_generator:
File "/home/erich/.local/share/uv/tools/aider-ce/lib/python3.11/site-packages/prompt_toolkit/eventloop/async_generator.py", line 125, in generator_to_async_generator
await runner_f
File "/home/erich/.local/share/uv/python/cpython-3.11.11-linux-x86_64-gnu/lib/python3.11/concurrent/futures/thread.py", line 58, in run
result = self.fn(*self.args, **self.kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/erich/.local/share/uv/tools/aider-ce/lib/python3.11/site-packages/prompt_toolkit/eventloop/async_generator.py", line 78, in runner
for item in get_iterable():
File "/home/erich/aider-ce/aider/io.py", line 251, in get_completions
self.tokenize()
File "/home/erich/aider-ce/aider/io.py", line 198, in tokenize
with open(fname, "r", encoding=self.encoding) as f:
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

Exception [Errno 5] Input/output error: '/home/erich/pi004/home/erich/ha/--command_prefix=pil 4'
Press ENTER to continue...
Press ENTER to continue...
Readonly: ../../../../bin/convention.md
Editable: --command_prefix=pil 4
multi> /report
multi>

Unhandled exception in event loop:
File "/home/erich/.local/share/uv/python/cpython-3.11.11-linux-x86_64-gnu/lib/python3.11/asyncio/events.py", line 84, in _run
self._context.run(self._callback, *self._args)
File "/home/erich/.local/share/uv/tools/aider-ce/lib/python3.11/site-packages/prompt_toolkit/application/application.py", line 714, in read_from_input_in_context
context.copy().run(read_from_input)
File "/home/erich/.local/share/uv/tools/aider-ce/lib/python3.11/site-packages/prompt_toolkit/application/application.py", line 694, in read_from_input
self.key_processor.process_keys()
File "/home/erich/.local/share/uv/tools/aider-ce/lib/python3.11/site-packages/prompt_toolkit/key_binding/key_processor.py", line 273, in process_keys
self._process_coroutine.send(key_press)
File "/home/erich/.local/share/uv/tools/aider-ce/lib/python3.11/site-packages/prompt_toolkit/key_binding/key_processor.py", line 188, in _process
self._call_handler(matches[-1], key_sequence=buffer[:])
File "/home/erich/.local/share/uv/tools/aider-ce/lib/python3.11/site-packages/prompt_toolkit/key_binding/key_processor.py", line 323, in _call_handler
handler.call(event)
File "/home/erich/.local/share/uv/tools/aider-ce/lib/python3.11/site-packages/prompt_toolkit/key_binding/key_bindings.py", line 127, in call
result = self.handler(event)
^^^^^^^^^^^^^^^^^^^
File "/home/erich/aider-ce/aider/io.py", line 892, in _
event.current_buffer.validate_and_handle()
File "/home/erich/.local/share/uv/tools/aider-ce/lib/python3.11/site-packages/prompt_toolkit/buffer.py", line 1891, in validate_and_handle
self.append_to_history()
File "/home/erich/.local/share/uv/tools/aider-ce/lib/python3.11/site-packages/prompt_toolkit/buffer.py", line 1365, in append_to_history
self.history.append_string(self.text)
File "/home/erich/.local/share/uv/tools/aider-ce/lib/python3.11/site-packages/prompt_toolkit/history.py", line 76, in append_string
self.store_string(string)
File "/home/erich/.local/share/uv/tools/aider-ce/lib/python3.11/site-packages/prompt_toolkit/history.py", line 299, in store_string
with open(self.filename, "ab") as f:
^^^^^^^^^^^^^^^^^^^^^^^^^

Exception [Errno 5] Input/output error: '/home/erich/pi004/home/erich/ha/.aider.input.history'
Press ENTER to continue...
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Version and model info

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