Imports github.com/bwmarrin/discordgo golang.org/x/image/webp github.com/nfnt/resize github.com/revrost/go-openrouter github.com/coalaura/lock Standard library imports bytes crypto/md5 encoding/base64 encoding/hex encoding/json errors fmt image image/gif image/jpeg image/png io net/http net/url os path/filepath regexp strings sync time slices