Use gemini-2.0-flash for both llms in ghagent

[whoisarpit]

PR Checklist

• The commit message follows our guidelines: Code of conduct
• Tests for the changes have been added (for bug fixes / features)
• Docs have been added / updated (for bug fixes / features)
• Does this PR introduce a breaking change?
• Include PR in release notes?

PR Type

• Bugfix
• Feature
• Refactoring
• Build /CI
• Documentation
• Others

What is the current behavior?

Issue Number: N/A

What is the new behavior?

Other information

[patched-admin]

File Changed: patchwork/steps/GitHubAgent/GitHubAgent.py

Rule 1: Do not ignore potential bugs in the code

Details: Potential bug risk identified. The code changes the LLM model from Claude to Gemini without verifying API compatibility or response format differences between the two models. This could lead to runtime errors if the models have different input/output specifications or capabilities.

Affected Code Snippet:

self.agentic_strategy = AgenticStrategyV2(
    model="gemini-2.0-flash",
    llm_client=AioLlmClient.create_aio_client(inputs),
    template_data=dict(),
    system_prompt_template="""\

Start Line: 20
End Line: 24

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Summary of Analysis:

The primary concern is the potential for bugs due to switching LLM models without proper compatibility verification. While no security vulnerabilities or coding standard violations were introduced, the change requires careful testing to ensure the new model works correctly with the existing AgenticStrategyV2 implementation and system prompt template.

Recommendation:

1. Verify Gemini model API compatibility with the existing code
2. Test system prompt template compatibility with the new model
3. Document any model-specific requirements or limitations
4. Add error handling for model-specific edge cases