完善图片视频添加预览功能

.reasonix/desktop-topic-auto-title-meta.json

@@ -46,5 +46,11 @@
     "userTurns": 1,
     "basisHash": "53517398750be87f",
     "updatedAt": 1783656298406
+  },
+  "topic_20260710-054543_5e7c427932aecd7b": {
+    "stage": 3,
+    "userTurns": 3,
+    "basisHash": "87073c4b14751c7b",
+    "updatedAt": 1783663776394
   }
 }

.reasonix/desktop-topic-created-at.json

@@ -7,5 +7,7 @@
   "topic_20260710-030936_cedad2907c3954fe": 1783652976310,
   "topic_20260710-032907_600adc6b00791607": 1783654147796,
   "topic_20260710-034033_6432ee6566f7b432": 1783654833341,
-  "topic_20260710-034724_3c6fb29d8d0a4119": 1783655244536
+  "topic_20260710-034724_3c6fb29d8d0a4119": 1783655244536,
+  "topic_20260710-054543_5e7c427932aecd7b": 1783662343716,
+  "topic_20260710-063053_353d579222d3b70b": 1783665053391
 }

.reasonix/desktop-topic-title-sources.json

@@ -45,5 +45,7 @@
   "topic_20260710-030936_cedad2907c3954fe": "auto",
   "topic_20260710-032907_600adc6b00791607": "auto",
   "topic_20260710-034033_6432ee6566f7b432": "auto",
-  "topic_20260710-034724_3c6fb29d8d0a4119": "auto"
+  "topic_20260710-034724_3c6fb29d8d0a4119": "auto",
+  "topic_20260710-054543_5e7c427932aecd7b": "auto",
+  "topic_20260710-063053_353d579222d3b70b": "auto"
 }

.reasonix/desktop-topic-titles.json

@@ -45,5 +45,7 @@
   "topic_20260710-030936_cedad2907c3954fe": "鼠标放在tree上的时候，只有hov…",
   "topic_20260710-032907_600adc6b00791607": "目录树中显示的文件夹，markdow…",
   "topic_20260710-034033_6432ee6566f7b432": "我在点击目录树的时候新增文件夹和新建…",
-  "topic_20260710-034724_3c6fb29d8d0a4119": "目录树中鼠标悬浮弹框dropmenu…"
+  "topic_20260710-034724_3c6fb29d8d0a4119": "目录树中鼠标悬浮弹框dropmenu…",
+  "topic_20260710-054543_5e7c427932aecd7b": "现在在markdown的编辑区域中…",
+  "topic_20260710-063053_353d579222d3b70b": "新的会话"
 }