Refactor: cleanup

- Introduce tracing
- Introduce cobra / viper framework
- Introduce resty client
- Seperate files in api/ and bot/
- Trim unused functions

bot/handleSlashWeb.go

@@ -0,0 +1,47 @@
+package bot
+
+import (
+	"context"
+
+	"github.com/Penguin-71630/meme-bot-frontend-dc/tracing"
+	"github.com/bwmarrin/discordgo"
+	"go.uber.org/zap"
+)
+
+func (b *Bot) handleSlashWeb(
+	s *discordgo.Session,
+	i *discordgo.InteractionCreate,
+) {
+	var userID string
+	if i.Member != nil {
+		userID = i.Member.User.ID
+	} else if i.User != nil {
+		userID = i.User.ID
+	}
+
+	// Call backend API
+	loginURL, err := b.apiClient.PostGenLoginURL(userID)
+	if err != nil {
+		tracing.Logger.Ctx(context.Background()).
+			Error("failed to generate login url",
+				zap.Error(err))
+		s.InteractionRespond(i.Interaction, &discordgo.InteractionResponse{
+			Type: discordgo.InteractionResponseChannelMessageWithSource,
+			Data: &discordgo.InteractionResponseData{
+				Content: "❌ Failed to generate login URL",
+				Flags:   discordgo.MessageFlagsEphemeral,
+			},
+		})
+		return
+	}
+
+	content := "🔗 **Click here to access the web page:**\n"+    
+		loginURL + "\n\n"
+	s.InteractionRespond(i.Interaction, &discordgo.InteractionResponse{
+		Type: discordgo.InteractionResponseChannelMessageWithSource,
+		Data: &discordgo.InteractionResponseData{
+			Content: content,
+			Flags:   discordgo.MessageFlagsEphemeral,
+		},
+	})
+}