* feat(devto): add devto adapter
* refactor(devto): improve adapters to match project conventions
- Make tag/username args positional for natural CLI usage:
opencli devto tag javascript (instead of --tag javascript)
opencli devto user ben (instead of --username ben)
- Add rank field (index + 1) matching hackernews/lobsters pattern
- Add tags field from tag_list for richer output
- Remove redundant author column from user command (already filtering by user)
- Use type: str (project convention) instead of type: string
- Increase default limit from 10 to 20 (matching other adapters)
- Update docs with positional arg examples
---------
Co-authored-by: jackwener <jakevingoo@gmail.com>
VK