Merge pull request #1360 from pikasTech/fix/1358-webui-session-tab-sizing

fix: keep workbench session tabs content-sized

web/hwlab-cloud-web/scripts/check.ts

@@ -118,6 +118,7 @@ assertIncludes(appSource, "primaryAction.value === \"steer\"", "Composer primary
 assertIncludes(appSource, ":data-action=\"primaryAction\"", "Composer primary button must expose the active turn/steer/cancel action");
 assert.doesNotMatch(appSource, /取消运行中 Trace/u, "Workbench must not render a separate stale cancel-running-trace button");
 assertIncludes(appSource, "session_required", "explicit session policy must be represented");
+assertIncludes(appSource, "grid-auto-rows: max-content;", "Session list rows must keep content height instead of stretching a single tab");
 assertIncludes(appSource, "CodeWorkbenchView", "Code Workbench must be a route view, not the app shell");
 assert.doesNotMatch(appSource, /from ["']react["']|React\.StrictMode|createRoot|\.tsx/u, "React runtime references must not remain");
 

web/hwlab-cloud-web/src/styles/workbench.css

@@ -590,7 +590,9 @@
 .session-list {
   display: grid;
   min-height: 0;
+  align-content: start;
   gap: 6px;
+  grid-auto-rows: max-content;
   overflow: auto;
 }
 
@@ -618,6 +620,7 @@
 .session-tab {
   position: relative;
   display: flex;
+  align-self: start;
   align-items: center;
   min-width: 0;
   min-height: 34px;