claude/discordo-plus

claude 2a99ad6241 fix: implement low-risk security, quality, and infra fixes from audit		vor 3 Monaten
..
client.go	69d3f81c89 fix(http): create new http.Client instead of mutating default	vor 3 Monaten
headers.go	6972ac6cb2 fix(http): log when getSuperProps fails	vor 6 Monaten
props.go	f42884ec07 refactor(http/props): move client_build_number to const	vor 6 Monaten
transport.go	2a99ad6241 fix: implement low-risk security, quality, and infra fixes from audit	vor 3 Monaten