合并转发构建与发送

src/common/data_models/reply_set_doc.md

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+# 有关转发消息和其他消息的构建类型说明
+```mermaid
+graph LR;
+    direction TB;
+    A[ReplySet] --- B[ReplyContent];
+    A --- C["ReplyContent"];
+    A --- K["ReplyContent"];
+    A --- L["ReplyContent"];
+    A --- N["ReplyContent"];
+    A --- D[...];
+    B --- E["Text (in str)"];
+    B --- F["Image (in base64)"];
+    C --- G["Voice (in base64)"];
+    B --- I["Emoji (in base64)"];
+    subgraph "可行内容(以下的任意组合)";
+        subgraph "转发消息(Forward)"
+            M["List[ForwardNode]"]
+        end
+        subgraph "混合消息(Hybrid)"
+            J["List[ReplyContent] (要求只能包含普通消息)"]
+        end
+        subgraph "命令消息(Command)"
+            H["Command (in Dict)"]
+        end
+        subgraph "语音消息"
+            G
+        end
+        subgraph "普通消息"
+            E
+            F
+            I
+        end
+    end
+    N --- H
+    K --- J
+    L --- M
+    subgraph ForwardNodes
+        O["ForwardNode"]
+        P["ForwardNode"]
+        Q["ForwardNode"]
+    end
+    M --- O
+    M --- P
+    M --- Q
+    subgraph "内容 (message_id引用法)"
+        P --- U["content: str, 引用已有消息的有效ID"];
+    end
+    subgraph "内容 (生成法)"
+        O --- R["user_id: str"];
+        O --- S["user_nickname: str"];
+        O --- T["content: List[ReplyContent], 为这个转发节点的消息内容"];
+    end
+```
+
+另外，自定义消息类型我们在这里不做讨论。
+
+以上列出了所有可能的ReplySet构建方式，下面我们来解释一下各个类型的含义。