Add GitHub community files

- CONTRIBUTING.md with blueprint submission guidelines
- Issue templates for bugs and feature requests
- Pull request template

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

.github/ISSUE_TEMPLATE/feature_request.md

@@ -0,0 +1,32 @@
+---
+name: Feature Request
+about: Suggest a new blueprint or enhancement
+title: ''
+labels: enhancement
+assignees: ''
+---
+
+## Request Type
+
+- [ ] New blueprint idea
+- [ ] Enhancement to existing blueprint
+
+## Blueprint Name (if enhancement)
+
+Which blueprint should be enhanced?
+
+## Description
+
+A clear description of what you would like.
+
+## Use Case
+
+Describe the problem this would solve or the automation scenario.
+
+## Proposed Solution
+
+If you have ideas on how to implement this, describe them here.
+
+## Additional Context
+
+Any other context, examples, or screenshots.