chore: add feature request issue template

Co-Authored-By: Paperclip <noreply@paperclip.ing>

Author: httpdss

.github/ISSUE_TEMPLATE/feature_request.md

@@ -0,0 +1,34 @@
+---
+name: Feature request
+about: Suggest an idea or improvement
+title: 'feat: '
+labels: enhancement
+assignees: ''
+---
+
+## What problem does this solve?
+
+<!-- Describe the problem or limitation you're running into. -->
+
+## Proposed solution
+
+<!-- How would you like this to work? Be as specific as you can. -->
+
+## Example usage
+
+```yaml
+# Show what a structkit.yaml using this feature might look like
+```
+
+```bash
+# Or the CLI command you'd expect
+structkit ...
+```
+
+## Alternatives considered
+
+<!-- Have you tried any workarounds? Other tools that do this? -->
+
+## Additional context
+
+<!-- Links, screenshots, or related issues. -->