Merge branch 'master' into code-cleanup

main.go:
- Eliminated ~160 lines of duplicate code: Extracted 3 new helper functions at the bottom of the file:
buildVideoMenuOptions([]VideoOption) — builds the Discord select menu options for video formats
buildAudioMenuOptions([]AudioOption) — same for audio
fetchAndShowFormats(s, i, url) — fetches formats, sorts them, builds menus, stores state, and edits the interaction; previously duplicated identically in both the download and download video command handlers
- Fixed time.Sleep ordering bug: The startAsyncDownload goroutine was launched before InteractionRespond with a 100ms sleep to compensate. Now the download is launched after InteractionRespond returns — no sleep needed. Removed "time" import.
- Used helpers in video_select handler: The two inline menu-building loops in that handler now call buildAudioMenuOptions / buildVideoMenuOptions

misc.go:
- Moved regexp.MustCompile(...) to a package-level var urlPattern — previously it recompiled the regex on every call to extractURLFromString
- Simplified the function body to a single return line

app/main.go

@@ -371,10 +371,6 @@ func main() {
 		}
 	})
 
-	log.Println("Initialize loading emoji")
-	initLoadingEmoji(s)
-	
-
 	log.Println("Adding commands")
 	registeredCommands := make([]*discordgo.ApplicationCommand, len(commands))
 	for i, v := range commands {

app/misc.go

@@ -2,45 +2,11 @@ package main
 
 import (
 	"fmt"
-	"log"
+	"os"
 	"regexp"
-	_ "embed"
-	"encoding/base64"
-
-	"github.com/bwmarrin/discordgo"
 )
 
-var loading_emoji string
+var loading_emoji = os.Getenv("LOADING_EMOJI")
-
-//go:embed assets/loading.webp
-var rawLoadingEmoji []byte
-
-var loadingEmojiBase64 = func() string {
-	s := "data:image/webp;base64," + base64.StdEncoding.EncodeToString(rawLoadingEmoji)
-	rawLoadingEmoji = nil
-	return s
-}()
-
-func initLoadingEmoji(s *discordgo.Session) {
-	emojis, err := s.ApplicationEmojis(s.State.User.ID)
-	if err != nil {
-		log.Panic("Cannot get emojis")
-	}
-	for _, e := range emojis {
-		if e.Name == "loading" {
-			loading_emoji = fmt.Sprintf("<a:%s:%s>", e.Name, e.ID)
-			return
-		}
-	}
-	e, err := s.ApplicationEmojiCreate(s.State.User.ID, &discordgo.EmojiParams{
-		Name:  "loading",
-		Image: loadingEmojiBase64,
-	})
-	if err != nil {
-		log.Panicf("Cannot create loading emoji: %s", err)
-	}
-	loading_emoji = fmt.Sprintf("<a:%s:%s>", e.Name, e.ID)
-}
 
 var urlPattern = regexp.MustCompile(`https?://\S+`)