[ Fix ]TypeError when using Chat completion

[parshvadaftari]

Description

Resolves an issue in the chat.completions class where the relevant memories retrieved from the memory client were not being accessed correctly. The relevant_memories variable, which is expected to contain the relevant memories under the key "results", was not being correctly referenced, leading to a TypeError.

Fixes #1913

Type of change

Please delete options that are not relevant.

• Bug fix (non-breaking change which fixes an issue)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)

How Has This Been Tested?

• Unit Test
• Test Script (please provide)

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• Any dependent changes have been merged and published in downstream modules
• I have checked my code and corrected any misspellings

Maintainer Checklist

• closes relevant_memories in mem0/proxy/main.py misisng "result" key when using Ollama and chat completion #1913
• Made sure Checks passed

[Dev-Khant]

@parshvadaftari Thanks for the contribution!