feat(ui): 优化项目树左侧栏视觉样式

desktop/frontend/src/App.tsx

@@ -140,10 +140,6 @@ const RIGHT_DOCK_MIN_RENDER_WIDTH = 280;
 const RIGHT_DOCK_MAX_WIDTH = 860;
 
 type RightDockMode = "context" | "files" | "changed";
-type WorkspaceRevealRequest = { id: number; path: string };
-type WorkspaceFileListRequest = { id: number; paths: string[] };
-type WorkspaceChangeListEntry = { key: string; path: string; meta: string; time: string; detail: string };
-type WorkspaceChangeListRequest = { id: number; changes: WorkspaceChangeListEntry[] };
 const SHOW_CONTEXT_DOCK = true;
 type HistoryScopeFilter = { scope: "global" | "project"; workspaceRoot: string };
 type DesktopPlatform = "darwin" | "windows" | "linux";
@@ -923,10 +919,6 @@ export default function App() {
   const [workspacePanelResizing, setWorkspacePanelResizing] = useState(false);
   const [workspacePanelMaximized, setWorkspacePanelMaximized] = useState(false);
   const [rightDockMode, setRightDockMode] = useState<RightDockMode>("context");
-  const [workspaceRevealRequest, setWorkspaceRevealRequest] = useState<WorkspaceRevealRequest | null>(null);
-  const [workspaceChangeRevealRequest, setWorkspaceChangeRevealRequest] = useState<WorkspaceRevealRequest | null>(null);
-  const [workspaceFileListRequest, setWorkspaceFileListRequest] = useState<WorkspaceFileListRequest | null>(null);
-  const [workspaceChangeListRequest, setWorkspaceChangeListRequest] = useState<WorkspaceChangeListRequest | null>(null);
   const [dockRefreshKey, setDockRefreshKey] = useState(0);
   const [projectRevision, setProjectRevision] = useState(0);
   const [activeTopicTurns, setActiveTopicTurns] = useState<number | undefined>(undefined);
@@ -1851,87 +1843,10 @@ export default function App() {
     openWorkspacePanel("context");
   }, [closeWorkspacePanel, openWorkspacePanel, pulseWorkspaceToggle, workspacePanelRenderable]);
 
-  const clearWorkspaceRequests = useCallback(() => {
-    setWorkspaceRevealRequest(null);
-    setWorkspaceChangeRevealRequest(null);
-    setWorkspaceFileListRequest(null);
-    setWorkspaceChangeListRequest(null);
-  }, []);
-
-  useEffect(() => {
-    clearWorkspaceRequests();
-  }, [activeTabId, clearWorkspaceRequests]);
-
   const openRightDockMode = useCallback(
     (mode: RightDockMode) => {
-      clearWorkspaceRequests();
       openWorkspacePanel(mode);
     },
-    [clearWorkspaceRequests, openWorkspacePanel],
-  );
-
-  const openRightDockFile = useCallback(
-    (path: string) => {
-      const nextPath = path.trim();
-      if (!nextPath) return;
-      setWorkspaceFileListRequest(null);
-      setWorkspaceChangeListRequest(null);
-      setWorkspaceChangeRevealRequest(null);
-      setWorkspaceRevealRequest((current) => ({ id: (current?.id ?? 0) + 1, path: nextPath }));
-      openWorkspacePanel("files");
-    },
-    [openWorkspacePanel],
-  );
-
-  const openRightDockFileList = useCallback(
-    (paths: string[]) => {
-      const normalized = Array.from(new Set(paths.map((path) => path.trim()).filter(Boolean)));
-      setWorkspaceRevealRequest(null);
-      setWorkspaceChangeRevealRequest(null);
-      setWorkspaceChangeListRequest(null);
-      setWorkspaceFileListRequest((current) =>
-        normalized.length > 0
-          ? { id: (current?.id ?? 0) + 1, paths: normalized }
-          : null,
-      );
-      openWorkspacePanel("files");
-    },
-    [openWorkspacePanel],
-  );
-
-  const openRightDockChangeFile = useCallback(
-    (path: string) => {
-      const nextPath = path.trim();
-      if (!nextPath) return;
-      setWorkspaceRevealRequest(null);
-      setWorkspaceFileListRequest(null);
-      setWorkspaceChangeListRequest(null);
-      setWorkspaceChangeRevealRequest((current) => ({ id: (current?.id ?? 0) + 1, path: nextPath }));
-      openWorkspacePanel("changed");
-    },
-    [openWorkspacePanel],
-  );
-
-  const openRightDockChangeList = useCallback(
-    (changes: WorkspaceChangeListEntry[]) => {
-      const seen = new Set<string>();
-      const normalized = changes
-        .map((change) => ({ ...change, path: change.path.trim() }))
-        .filter((change) => {
-          if (!change.path || seen.has(change.path)) return false;
-          seen.add(change.path);
-          return true;
-      });
-      setWorkspaceRevealRequest(null);
-      setWorkspaceChangeRevealRequest(null);
-      setWorkspaceFileListRequest(null);
-      setWorkspaceChangeListRequest((current) =>
-        normalized.length > 0
-          ? { id: (current?.id ?? 0) + 1, changes: normalized }
-          : null,
-      );
-      openWorkspacePanel("changed");
-    },
     [openWorkspacePanel],
   );
 
@@ -1969,11 +1884,10 @@ export default function App() {
 
   const handleTabChange = useCallback(async (id: string) => {
     closeTransientOverlays();
-    clearWorkspaceRequests();
     const tabs = await switchTab(id);
     if (tabs) setTabMetas(tabs);
     setTabRevealSignal((signal) => signal + 1);
-  }, [clearWorkspaceRequests, closeTransientOverlays, switchTab]);
+  }, [closeTransientOverlays, switchTab]);
 
   const handleTabClose = useCallback(async (id: string) => {
     closeTransientOverlays();
@@ -3098,11 +3012,6 @@ export default function App() {
                   sessionCurrency={state.sessionCurrency}
                   sessionGen={state.sessionGen}
                   refreshKey={dockRefreshKey}
-                  onOpenWorkspaceMode={openRightDockMode}
-                  onOpenWorkspaceFile={openRightDockFile}
-                  onOpenWorkspaceFileList={openRightDockFileList}
-                  onOpenWorkspaceChangeList={openRightDockChangeList}
-                  onOpenWorkspaceChangeFile={openRightDockChangeFile}
                 />
               ) : (
                 <WorkspacePanel
@@ -3121,10 +3030,6 @@ export default function App() {
                   onRequestPanelWidth={ensureWorkspacePanelWidth}
                   refreshKey={dockRefreshKey}
                   initialViewMode={rightDockMode === "changed" ? "changed" : "files"}
-                  revealPathRequest={workspaceRevealRequest}
-                  changeRevealRequest={workspaceChangeRevealRequest}
-                  fileListRequest={workspaceFileListRequest}
-                  changeListRequest={workspaceChangeListRequest}
                   showViewTabs={false}
                 />
               )}

desktop/frontend/src/__tests__/project-tree-runtime.test.ts

@@ -1,6 +1,7 @@
 // Run: tsx src/__tests__/project-tree-runtime.test.ts
 
 import {
+  projectTreeFolderDisclosure,
   defaultExpandedProjectTreeKeys,
   projectTreeTopicOpenRequest,
 } from "../components/ProjectTree";
@@ -83,5 +84,38 @@ eq(
   "regular project topic still opens by topic",
 );
 
+eq(
+  projectTreeFolderDisclosure(false, true),
+  {
+    canExpand: false,
+    isOpen: false,
+    ariaExpanded: undefined,
+    iconStackClassName: "project-tree__icon-stack",
+  },
+  "empty project folders are not exposed as expandable disclosure rows",
+);
+
+eq(
+  projectTreeFolderDisclosure(true, false),
+  {
+    canExpand: true,
+    isOpen: false,
+    ariaExpanded: false,
+    iconStackClassName: "project-tree__icon-stack project-tree__icon-stack--expandable",
+  },
+  "collapsed project folders keep disclosure semantics when children exist",
+);
+
+eq(
+  projectTreeFolderDisclosure(true, true),
+  {
+    canExpand: true,
+    isOpen: true,
+    ariaExpanded: true,
+    iconStackClassName: "project-tree__icon-stack project-tree__icon-stack--expandable",
+  },
+  "expanded project folders can show the open-folder state only when children exist",
+);
+
 console.log(`\n${passed} passed, ${failed} failed`);
 if (failed > 0) process.exit(1);

desktop/frontend/src/__tests__/typography-overflow-contract.test.ts

@@ -127,7 +127,6 @@ for (const selector of [
   ".context-panel__section-head span",
   ".context-panel__metric span",
   ".context-panel__metric strong",
-  ".context-panel__file-copy > span",
   ".topbar__model",
   ".composer-modebar__item span",
   ".composer-more-menu__item span",