chore: log openai completion error

[zwpaper]

we can know what is the error when completion failed

2024-11-26T17:46:53.617182Z  WARN http_api_bindings::completion::openai: crates/http-api-bindings/src/completion/openai.rs:107: Error in completion event source: 404 Not Found, {  "error": {    "message": "This is a chat model and not supported in the v1/completions endpoint. Did you mean to use v1/chat/completions?",    "type": "invalid_request_error",    "param": "model",    "code": null  }}

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 8 lines in your changes missing coverage. Please review.

Project coverage is 62.95%. Comparing base (b6b8d60) to head (20dabf5).
Report is 2 commits behind head on main.

Files with missing lines	Patch %	Lines
crates/http-api-bindings/src/completion/openai.rs	0.00%	8 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3476      +/-   ##
==========================================
- Coverage   62.96%   62.95%   -0.01%     
==========================================
  Files         194      194              
  Lines       22182    22188       +6     
==========================================
+ Hits        13966    13968       +2     
- Misses       8216     8220       +4     

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