Merge pull request #1 from denpaio/claude/update-domain-contributing-01CcoWMNPp279veiyvkb9Zni

Update domain and add contributing guidelines

Author: shikendon

CNAME

@@ -0,0 +1,68 @@
+# Contributing Guidelines
+
+> **⚠️ Source of Truth**: [CONTRIBUTING.md](https://denpaio.github.io/CONTRIBUTING.md)  
+> 
+> **MANDATORY: Version Check Before Any Work**:
+> - **ALWAYS verify this file matches the source before making any changes**
+> - If outdated, MUST update to latest version first via PR
+> - To check: `curl -s https://denpaio.github.io/CONTRIBUTING.md | diff CONTRIBUTING.md -`
+> - To sync: `curl -o CONTRIBUTING.md https://denpaio.github.io/CONTRIBUTING.md`
+> - DO NOT modify this file directly - all changes must be made in the source
+> - After source updates, submit a PR to update this repository's copy
+
+## Code Standards
+
+### Language & Documentation
+- **Code comments**: English preferred, but follow existing context
+- **Documentation**: English preferred
+- **Principle**: Self-documenting code over redundant comments
+
+### Style Enforcement
+- **Ruby**: Follow Rubocop conventions (`.rubocop.yml`)
+- **JavaScript**: Follow ESLint conventions (`.eslintrc`)
+- **Python**: Follow PEP 8 conventions
+- **Go**: Follow gofmt conventions
+- **Java**: Follow [Google Java Style Guide](https://google.github.io/styleguide/javaguide.html)
+
+### Commit Messages
+- Follow [Conventional Commits](https://www.conventionalcommits.org/) specification
+
+## Workflow
+
+1. Run linters before committing:
+```bash
+# Ruby
+rubocop -A
+
+# JavaScript
+eslint --fix .
+
+# Python
+black . && isort .
+
+# Go
+gofmt -w .
+
+# Java
+# Use google-java-format plugin in your IDE or:
+# java -jar google-java-format.jar --replace src/**/*.java
+
+# Terraform
+terraform fmt -recursive
+terraform validate
+tflint
+
+# Helm
+helm lint helm/*/
+
+# YAML
+yamllint .
+```
+
+2. Ensure all tests pass
+3. Write clear, self-documenting code
+4. Commit with conventional format: `type(scope): description`
+
+---
+
+<!-- For Claude Code: CRITICAL - Before any work, verify CONTRIBUTING.md is up-to-date with source. If outdated, stop and request update via PR first. Strictly follow all standards above. Verify linter compliance before marking tasks complete. -->