[feat] token-limited message context

[bassmang]

No description provided.

[codecov]

Codecov Report

Attention: Patch coverage is 58.85714% with 72 lines in your changes missing coverage. Please review.

Project coverage is 76.96%. Comparing base (29485ef) to head (f12bedc).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
...xt/src/autogen_ext/models/ollama/_ollama_client.py	1.92%	51 Missing ⚠️
...xt/src/autogen_ext/models/openai/_openai_client.py	77.02%	17 Missing ⚠️
..._context/_token_limited_chat_completion_context.py	91.66%	4 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #6087      +/-   ##
==========================================
+ Coverage   76.90%   76.96%   +0.05%     
==========================================
  Files         191      192       +1     
  Lines       13387    13438      +51     
==========================================
+ Hits        10295    10342      +47     
- Misses       3092     3096       +4     

Flag	Coverage Δ
unittests	76.96% <58.85%> (+0.05%)	⬆️

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