Disable llm in embed_documents

[rishimo]

🤔 Why?

SC24665

If the llm parameter is not manually disabled or the OPENAI_API_KEY is not configured the ServiceContext becomes very sad.

🤓 What?

Sets llm=None manually to avoid configuring an OPENAI_API_KEY when none is needed.

🧪 Tested?

Tested locally and embeddings are generated successfully.

☑️ Checks

• My PR contains actual code changes, and I have updated the version number in pyproject.toml.

[shortcut-integration]

This pull request has been linked to Shortcut Story #24665: explicitly disable llm in embed_documents.

[github-actions]

☂️ Python Coverage

current status: ✅

Overall Coverage

Lines	Covered	Coverage	Threshold	Status
15841	14639	92%	85%	🟢

New Files

No new covered files...

Modified Files

File	Coverage	Status
metaphor/common/embeddings.py	81%	🟢
TOTAL	81%	🟢

updated for commit: ec5a7b5 by action🐍

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (cebe62a) 92.21% compared to head (ec5a7b5) 92.41%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #781      +/-   ##
==========================================
+ Coverage   92.21%   92.41%   +0.19%     
==========================================
  Files         194      154      -40     
  Lines       16001    15841     -160     
==========================================
- Hits        14756    14639     -117     
+ Misses       1245     1202      -43     

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