[AB-206] fixing missing command channel group type

fixing not setting the server for creating a command in a channel
adding exceptions for incorrect channel group type

abstracto-application/core/core-int/src/main/java/dev/sheldan/abstracto/core/command/exception/ChannelGroupIncorrectTypeException.java

@@ -0,0 +1,24 @@
+package dev.sheldan.abstracto.core.command.exception;
+
+import dev.sheldan.abstracto.core.command.models.exception.ChannelGroupIncorrectTypeExceptionModel;
+import dev.sheldan.abstracto.core.exception.AbstractoRunTimeException;
+import dev.sheldan.abstracto.core.templating.Templatable;
+
+public class ChannelGroupIncorrectTypeException extends AbstractoRunTimeException implements Templatable {
+
+    private final ChannelGroupIncorrectTypeExceptionModel model;
+
+    public ChannelGroupIncorrectTypeException(String key, String correctType) {
+        super("Channel group has the incorrect type.");
+        this.model = ChannelGroupIncorrectTypeExceptionModel.builder().name(key).correctType(correctType).build();
+    }
+    @Override
+    public String getTemplateName() {
+        return "channel_group_not_found_exception";
+    }
+
+    @Override
+    public Object getTemplateModel() {
+        return model;
+    }
+}

abstracto-application/core/core-int/src/main/java/dev/sheldan/abstracto/core/command/models/exception/ChannelGroupIncorrectTypeExceptionModel.java

@@ -0,0 +1,15 @@
+package dev.sheldan.abstracto.core.command.models.exception;
+
+import lombok.Builder;
+import lombok.Getter;
+import lombok.Setter;
+
+import java.io.Serializable;
+
+@Getter
+@Setter
+@Builder
+public class ChannelGroupIncorrectTypeExceptionModel implements Serializable {
+    private String name;
+    private String correctType;
+}