uv sync problem

Hi @pamelafox

git pull works, however when i start `uv sync` it results in the following error:

```
Updating files: 100% (3518/3518), done.
Downloading python/packages/lab/lightning/assets/train_math_agent.png (153 KB)
Error downloading object: python/packages/lab/lightning/assets/train_math_agent.png (ab35a2b): Smudge error: Error downloading
python/packages/lab/lightning/assets/train_math_agent.png (ab35a2bd18794a32b76437671ae7e5749992c8aa781030b51eca2e56acfb362d):
error transferring "ab35a2bd18794a32b76437671ae7e5749992c8aa781030b51eca2e56acfb362d": [0] remote missing object
ab35a2bd18794a32b76437671ae7e5749992c8aa781030b51eca2e56acfb362d
```

```
Use `git lfs logs last` to view the log.
error: external filter 'git-lfs filter-process' failed
fatal: python/packages/lab/lightning/assets/train_math_agent.png: smudge filter lfs failed

help: `agent-framework-azure-ai-search` was included because `python-agentframework-demos` (v0.1.0) depends on `agent-framework-azure-ai-search`
```

I worked around with `$env:GIT_LFS_SKIP_SMUDGE=1`
I am on powershell windows