支持树形资源管理器

packages/editor-app/src/styles/AssetBrowser.css

@@ -13,24 +13,87 @@
 }
 
 .asset-browser-header h3 {
-  margin: 0 0 8px 0;
+  margin: 0;
   font-size: 14px;
   font-weight: 600;
   color: #cccccc;
 }
 
-.asset-path {
-  font-size: 11px;
-  color: #858585;
-  overflow: hidden;
-  text-overflow: ellipsis;
-  white-space: nowrap;
+.view-mode-buttons {
+  display: flex;
+  gap: 4px;
+}
+
+.view-mode-btn {
+  padding: 4px 8px;
+  background: transparent;
+  border: 1px solid #3e3e3e;
+  border-radius: 3px;
+  color: #cccccc;
+  cursor: pointer;
+  transition: all 0.2s ease;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+}
+
+.view-mode-btn:hover {
+  background: #2a2d2e;
+  border-color: #007acc;
+}
+
+.view-mode-btn.active {
+  background: #0e639c;
+  border-color: #0e639c;
+  color: #ffffff;
 }
 
 .asset-browser-content {
   flex: 1;
-  overflow-y: auto;
-  padding: 10px;
+  overflow: hidden;
+  display: flex;
+  flex-direction: column;
+}
+
+.asset-browser-tree,
+.asset-browser-tree-only {
+  height: 100%;
+  overflow: hidden;
+  display: flex;
+  flex-direction: column;
+}
+
+.asset-browser-list {
+  height: 100%;
+  overflow: hidden;
+  display: flex;
+  flex-direction: column;
+}
+
+.asset-browser-toolbar {
+  padding: 8px;
+  background: #252526;
+  border-bottom: 1px solid #3e3e3e;
+}
+
+.asset-search {
+  width: 100%;
+  padding: 6px 10px;
+  background: #3c3c3c;
+  border: 1px solid #3e3e3e;
+  border-radius: 3px;
+  color: #cccccc;
+  font-size: 13px;
+  outline: none;
+}
+
+.asset-search:focus {
+  border-color: #007acc;
+  background: #3e3e3e;
+}
+
+.asset-search::placeholder {
+  color: #858585;
 }
 
 .asset-browser-loading,
@@ -44,9 +107,13 @@
 }
 
 .asset-list {
+  flex: 1;
   display: grid;
   grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
   gap: 10px;
+  padding: 10px;
+  overflow-y: auto;
+  align-content: start;
 }
 
 .asset-item {
@@ -101,20 +168,33 @@
   text-transform: uppercase;
 }
 
-.asset-browser-content::-webkit-scrollbar {
+.asset-browser-list,
+.asset-list {
+  overflow-y: auto;
+}
+
+.asset-browser-list::-webkit-scrollbar,
+.asset-list::-webkit-scrollbar,
+.file-tree::-webkit-scrollbar {
   width: 10px;
 }
 
-.asset-browser-content::-webkit-scrollbar-track {
+.asset-browser-list::-webkit-scrollbar-track,
+.asset-list::-webkit-scrollbar-track,
+.file-tree::-webkit-scrollbar-track {
   background: #1e1e1e;
 }
 
-.asset-browser-content::-webkit-scrollbar-thumb {
+.asset-browser-list::-webkit-scrollbar-thumb,
+.asset-list::-webkit-scrollbar-thumb,
+.file-tree::-webkit-scrollbar-thumb {
   background: #424242;
   border-radius: 5px;
 }
 
-.asset-browser-content::-webkit-scrollbar-thumb:hover {
+.asset-browser-list::-webkit-scrollbar-thumb:hover,
+.asset-list::-webkit-scrollbar-thumb:hover,
+.file-tree::-webkit-scrollbar-thumb:hover {
   background: #4e4e4e;
 }
 

packages/editor-app/src/styles/FileTree.css

@@ -0,0 +1,78 @@
+.file-tree {
+  height: 100%;
+  overflow-y: auto;
+  overflow-x: hidden;
+  background: #1e1e1e;
+  color: #cccccc;
+  user-select: none;
+}
+
+.file-tree::-webkit-scrollbar {
+  width: 10px;
+}
+
+.file-tree::-webkit-scrollbar-track {
+  background: #1e1e1e;
+}
+
+.file-tree::-webkit-scrollbar-thumb {
+  background: #424242;
+  border-radius: 5px;
+}
+
+.file-tree::-webkit-scrollbar-thumb:hover {
+  background: #4e4e4e;
+}
+
+.file-tree.loading,
+.file-tree.empty {
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  color: #858585;
+  font-size: 12px;
+}
+
+.tree-node {
+  display: flex;
+  align-items: center;
+  padding: 4px 8px;
+  cursor: pointer;
+  font-size: 13px;
+  white-space: nowrap;
+  transition: background 0.1s ease;
+}
+
+.tree-node:hover {
+  background: #2a2d2e;
+}
+
+.tree-node.selected {
+  background: #37373d;
+}
+
+.tree-arrow {
+  width: 16px;
+  height: 16px;
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  margin-right: 4px;
+  font-size: 10px;
+  color: #cccccc;
+}
+
+.tree-icon {
+  margin-right: 6px;
+  font-size: 14px;
+}
+
+.tree-label {
+  flex: 1;
+  overflow: hidden;
+  text-overflow: ellipsis;
+}
+
+.tree-children {
+  /* Children are indented via inline style */
+}