fix: remove duplicate ALTCHA route registrations

- Remove duplicate routes from auth and v1 groups
- Keep only the main router registrations
- This fixes the panic on startup

go-backend/cmd/api/main.go

@@ -266,17 +266,8 @@ func main() {
 			auth.GET("/verify", authHandler.VerifyEmail)
 			auth.POST("/forgot-password", authHandler.ForgotPassword)
 			auth.POST("/reset-password", authHandler.ResetPassword)
-			auth.GET("/altcha-challenge", authHandler.GetAltchaChallenge)
 		}
 
-		// Test endpoint to verify routing
-		v1.GET("/test", func(c *gin.Context) {
-			c.JSON(200, gin.H{"message": "Route test successful"})
-		})
-
-		// Admin ALTCHA challenge endpoint (no auth required)
-		v1.GET("/admin/altcha-challenge", adminHandler.GetAltchaChallenge)
-
 		authorized := v1.Group("")
 		authorized.Use(middleware.AuthMiddleware(cfg.JWTSecret, dbPool))
 		{