feat tidy formatting, add pre-commit CI, and fix tests- Reformat dict comprehension and log.error lines in routes.py a more compact, consistent style and to remove spurious line breaks that caused uneven diff noise.

feat tidy formatting, add pre-commit CI, and fix tests- Reformat dict comprehension and log.error lines in routes.py a more compact, consistent style and to remove spurious line breaks that caused uneven diff noise. #63