Issue/PR Templates + Conventional Commits

[Alexandrbig1]

Priority: Medium
Difficulty: Easy

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Description:
Add standardized templates and policies to the repository for better collaboration and code quality.

• Create .github/ISSUE_TEMPLATE and PULL_REQUEST_TEMPLATE files.
• Add a CODEOWNERS file for code review assignment.
• Set up a linter or workflow to enforce Conventional Commits for commit messages.

Acceptance Criteria:

• New issues and PRs use the correct templates
• CODEOWNERS file assigns reviewers as expected
• Commits are checked for Conventional Commit compliance automatically