fix(file-viewer): COD-341 preserve search row layout

src/web/public/panels-ui.js

@@ -3310,7 +3310,6 @@ Object.assign(CodemanApp.prototype, {
               <span class="file-tree-expand"></span>
               <span class="file-tree-icon">${icon}</span>
               <span class="${nameClass}">${escapeHtml(match.name)}</span>
-              <span class="file-tree-path" title="${escapeHtml(match.path)}">${escapeHtml(match.path)}</span>
               ${sizeStr}
               ${downloadBtn}
             </div>

test/file-browser-search.test.ts

@@ -312,7 +312,8 @@ describe('File Viewer server search', () => {
     expect(elements.fileBrowserTree.innerHTML).toContain('class="file-tree-size">1.5 KB</span>');
     expect(elements.fileBrowserTree.innerHTML).toContain('📘');
     expect(elements.fileBrowserTree.innerHTML).toContain('📁');
-    expect(elements.fileBrowserTree.innerHTML).toContain('src/widget.ts');
+    expect(elements.fileBrowserTree.innerHTML).toContain('data-path="src/widget.ts"');
+    expect(elements.fileBrowserTree.innerHTML).not.toContain('class="file-tree-path"');
     expect(elements.fileBrowserTree.innerHTML).toContain(
       'href="/api/sessions/session%2FA/file-raw?path=src%2Fwidget.ts&amp;download=true"'
     );
@@ -409,6 +410,40 @@ describe('File Viewer server search', () => {
     }
   });
 
+  it('keeps query B rendered when its response beats an already-launched query A', async () => {
+    const { app, elements, pending } = loadPanel();
+    app.filterFileBrowser('query A');
+    await vi.advanceTimersByTimeAsync(250);
+    app.filterFileBrowser('query B');
+    await vi.advanceTimersByTimeAsync(250);
+    expect(pending).toHaveLength(2);
+
+    pending[1].reply.resolve(
+      response(
+        successfulData({
+          matches: [{ name: 'result-B.ts', path: 'result-B.ts', type: 'file' }],
+          matchCount: 1,
+        })
+      )
+    );
+    await vi.advanceTimersByTimeAsync(0);
+    expect(elements.fileBrowserTree.innerHTML).toContain('result-B.ts');
+
+    pending[0].reply.resolve(
+      response(
+        successfulData({
+          matches: [{ name: 'result-A.ts', path: 'result-A.ts', type: 'file' }],
+          matchCount: 1,
+        })
+      )
+    );
+    await vi.advanceTimersByTimeAsync(0);
+
+    expect(elements.fileBrowserTree.innerHTML).toContain('result-B.ts');
+    expect(elements.fileBrowserTree.innerHTML).not.toContain('result-A.ts');
+    expect(app._fileBrowserState.matches[0].name).toBe('result-B.ts');
+  });
+
   it('clears a blank query and restores the compatible cached tree immediately without fetching', () => {
     const { app, elements, pending } = loadPanel();
     app.fileBrowserData = {