[DX] Clean up .env.example: remove duplicates, add source comments, improve onboarding#212

yash-pouranik merged 3 commits into

geturbackend:maingeturbackend/urBackend:mainfrom

udaycodespace:fix/dx-env-cleanup-207udaycodespace/GGSoC_2026_urBackend:fix/dx-env-cleanup-207Copy head branch name to clipboard