feat(dynamic/detail.md): detail pic

close #1303

docs/dynamic/detail.md

@@ -2030,3 +2030,78 @@ curl 'https://api.bilibili.com/x/polymer/web-dynamic/v1/detail/forward' \
 </details>
 
 <!-- Generated by json-apidoc-gen @ 2025-07-22T03:25:21.567940914Z -->
+
+## 获取动态中图片
+
+> https://api.bilibili.com/x/polymer/web-dynamic/v1/detail/pic
+
+*请求方法: GET*
+
+<!-- #1303 -->
+
+**URL 参数:**
+
+| 字段 | 类型   | 内容    | 必要性 | 备注 |
+| ---- | ------ | ------- | ------ | ---- |
+| id   | number | 动态 id | 必要   |      |
+
+**JSON 回复:**
+
+根对象:
+
+| 字段 | 类型 | 内容 | 备注 |
+| ---- | ---- | ---- | ---- |
+| code | number | 返回值 |  |
+| data | object[] | 数据本体 |  |
+| message | string | 错误信息 | 成功时为 `0` |
+| ttl | number | `1` |  |
+
+`data[]` 对象:
+
+| 字段 | 类型 | 内容 | 备注 |
+| ---- | ---- | ---- | ---- |
+| height | number | 图片高度 |  |
+| size | number | 图片大小 | k |
+| src | string | 图片 URL |  |
+| width | number | 图片宽度 |  |
+
+**示例:**
+
+```shell
+-curl -G 'https://api.bilibili.com/x/polymer/web-dynamic/v1/detail/pic' \
+--url-query 'id=1092404028147499014'
+```
+
+<details>
+<summary>查看响应示例:</summary>
+
+```json
+{
+  "code": 0,
+  "data": [
+    {
+      "height": 20112,
+      "size": 9609.4560546875,
+      "src": "http://i0.hdslb.com/bfs/new_dyn/b3ca19b4a65c2f847fa91d925495eb3f36081646.jpg",
+      "width": 4167
+    },
+    {
+      "height": 21146,
+      "size": 6948.43359375,
+      "src": "http://i0.hdslb.com/bfs/new_dyn/60b1549d91ce580a8499f63368b283fc36081646.jpg",
+      "width": 4167
+    },
+    {
+      "height": 29531,
+      "size": 10990.845703125,
+      "src": "http://i0.hdslb.com/bfs/new_dyn/598a158fff8a5814fe85ae0f9212b1cf36081646.jpg",
+      "width": 4167
+    }
+  ],
+  "message": "0",
+  "ttl": 1
+}
+```
+</details>
+
+<!-- Generated by json-apidoc-gen @ 2025-07-23T01:44:31.058550428Z -->