Add Contributor Covenant Code of Conduct

[Pranav-MSK]

This document outlines the Contributor Covenant Code of Conduct, detailing the community's pledge, standards, enforcement responsibilities, and consequences for violations.

Description

Adds CODE_OF_CONDUCT.md using the standard Contributor Covenant v2.0 template. Enforcement contact set to pycontributors@gmail.com.

Closes #51

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Type of Change

• feat
• fix
• docs
• refactor
• chore
• accidental genius

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Checklist

Overengineering Verification

• I have introduced at least one unnecessary abstraction layer
• The solution is more complex than the problem warrants
• A reasonable engineer would question at least one design decision
• I have named something in a way that requires further explanation

Validation

• pytest passes locally with no failures
• New functionality is covered by tests
• I have not deleted tests to make CI green
• Documentation has been updated if needed

Traceability

• This PR references a related issue
• The branch name vaguely reflects the chaos introduced

General

• Future contributors may question my decisions, but not my confidence
• Code has been self-reviewed
• No secrets, credentials, or hardcoded paths were smuggled in
• I have read the CONTRIBUTING.md guidelines

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Screenshots (if applicable)

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Additional Notes

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"Any fool can write code that a computer can understand. Good programmers write code that humans can understand — but we don't do that here."