## Summary
* fixed missing error handler in main
* add injectable build string in main
* add (dynamically linked) docker build
* add github CI workflow
* add extra but useful dev files in dev folder
* closes#93
## Notes
* We'll move to a self-hosted CI runner once it is installed on Gitea.
Reviewed-on: urdt/ussd#174
Co-authored-by: Mohammed Sohail <sohailsameja@gmail.com>
Co-committed-by: Mohammed Sohail <sohailsameja@gmail.com>
