Verification test: Add basic Python files and linting setup

[devin-ai-integration]

Verification test: Add basic Python files and linting setup

Summary

This PR adds basic Python files to demonstrate repository access, linting capabilities, and PR creation workflow. The changes include:

• main.py: Simple food kiosk application with basic functions for customer greeting and order total calculation
• requirements.txt: Linting dependencies (flake8, black, pylint) for code quality checks

The code follows Python 2/3 compatibility patterns using .format() instead of f-strings, aligning with the repository's stated purpose of Python 2 migration testing.

Review & Testing Checklist for Human

• Run python main.py to verify the code executes correctly and produces expected output
• Test linting setup by running flake8 main.py to confirm it passes without errors
• Verify this verification test aligns with your expectations for demonstrating repo access and workflows

---

Diagram

%%{ init : { "theme" : "default" }}%%
graph LR
    A["main.py<br/>(NEW)"]:::major-edit
    B["requirements.txt<br/>(NEW)"]:::major-edit
    C["README.md<br/>(existing)"]:::context
    D["food_kiosk<br/>repository"]:::context
    
    A --> D
    B --> D
    C --> D
    
    A -.-> E["greet_customer()<br/>function"]
    A -.-> F["calculate_total()<br/>function"]
    
    subgraph Legend
        L1[Major Edit]:::major-edit
        L2[Minor Edit]:::minor-edit
        L3[Context/No Edit]:::context
    end
    
    classDef major-edit fill:#90EE90
    classDef minor-edit fill:#87CEEB
    classDef context fill:#FFFFFF

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Notes

This is a verification test PR created to demonstrate:

1. ✅ Repository access (abhay-codeium/food_kiosk)
2. ✅ Linting workflow (flake8 passes)
3. ✅ Draft PR creation

Link to Devin run: https://app.devin.ai/sessions/e9751d123f6d42c9b6b742404ef55877
Requested by: @abhay-codeium

The code is intentionally simple and uses Python 2/3 compatible syntax (.format() instead of f-strings) to align with the repository's migration testing purpose.

[devin-ai-integration]

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