Code_Uwe/rhl-lieferscheine @ RHL-002-implement-tests-for-APIs-and-filesystem

Code_Uwe 081432b174 RHL-002-feat:implement tests for storage module functions using vitest		1 hete
..
db.js	624f266ce0 refactor: improve MongoDB client connection handling and error messages	2 hete
storage.js	081432b174 RHL-002-feat:implement tests for storage module functions using vitest	1 hete
storage.test.js	081432b174 RHL-002-feat:implement tests for storage module functions using vitest	1 hete
utils.js	0e5cb39f5b feat: initial ui setup with shad cn, lucide react icons and implement dark mode	2 hete