docs: Update Code of Conduct

- Add comprehensive professional standards
- Define expected and unacceptable behavior
- Outline enforcement process
- Complete community standards

Author: PeterVinter

CODE_OF_CONDUCT.md

@@ -1 +1,42 @@
+# Code of Conduct
 
+## Our Standards
+
+This project maintains professional standards to foster an open and welcoming environment:
+
+### Expected Behavior
+
+* Using welcoming and professional language
+* Being respectful of differing viewpoints
+* Accepting constructive criticism gracefully
+* Focusing on what is best for the project
+* Showing empathy towards other project members
+
+### Unacceptable Behavior
+
+* Use of inappropriate language or imagery
+* Trolling, insulting/derogatory comments
+* Public or private harassment
+* Publishing private information without permission
+* Other conduct which could reasonably be considered inappropriate
+
+## Responsibilities
+
+Project maintainers are responsible for clarifying the standards of acceptable behavior and are expected to take appropriate and fair corrective action in response to any instances of unacceptable behavior.
+
+## Scope
+
+This Code of Conduct applies within all project spaces, including:
+* Repository
+* Issue tracker
+* Pull requests
+* Project discussions
+* Project events
+
+## Enforcement
+
+Instances of abusive, harassing, or otherwise unacceptable behavior may be reported by contacting the project maintainers. All complaints will be reviewed and investigated promptly and fairly.
+
+## Attribution
+
+This Code of Conduct is adapted from best practices in open source communities.