🧹 chore: Add CODEOWNERS (#182)

This tries to clear up the chaos on who is in charge of what

.github/CODEOWNERS

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+* @dev-team
+
+/apps/ @victorpahuus @AquaWolf
+/packages/ui/ @wanjohiryan @victorpahuus @AquaWolf
+
+/protobuf/ @AquaWolf
+
+/infra/ @wanjohiryan
+/packages/core/ @wanjohiryan
+/packages/functions/ @wanjohiryan
+
+/containers/ @DatCaptainHorse
+/packages/server/ @DatCaptainHorse
+/packages/relay/ @DatCaptainHorse
+/packages/scripts/ @DatCaptainHorse
+/packages/input/ @DatCaptainHorse

.github/PULL_REQUEST_TEMPLATE.md

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+## Description
+<!-- Briefly describe the purpose and scope of your changes -->
+
+## Related Issues
+<!-- List any related issues (e.g., "Closes #123", "Fixes #456") -->
+
+## Type of Change
+
+- [ ] Bug fix (non-breaking change)
+- [ ] New feature (non-breaking change)
+- [ ] Breaking change (fix or feature that changes existing functionality)
+- [ ] Documentation update
+- [ ] Other (please describe):
+
+## Checklist
+
+- [ ] I have updated relevant documentation
+- [ ] My code follows the project's coding style
+- [ ] My changes generate no new warnings/errors
+
+## Notes for Reviewers
+<!-- Point out areas you'd like reviewers to focus on, questions you have, or decisions that need discussion -->
+
+## Screenshots/Demo
+<!-- If applicable, add screenshots or a GIF demo of your changes (especially for UI changes) -->
+
+## Additional Context
+<!-- Add any other context about the pull request here -->