feat(ui): add OpenClaw support to frontend components

- Update App.tsx with openclaw visibility and skills fallback
- Add OpenClaw to AppSwitcher icon and display name maps
- Update McpFormModal with openclaw in enabled apps
- Update PromptFormModal/Panel with openclaw filename map
- Update EndpointSpeedTest with openclaw timeout
- Update AppVisibilitySettings with openclaw toggle
- Update test state with openclaw defaults

src/App.tsx

@@ -123,6 +123,7 @@ function App() {
     codex: true,
     gemini: true,
     opencode: true,
+    openclaw: true,
   };
 
   const getFirstVisibleApp = (): AppId => {
@@ -130,6 +131,7 @@ function App() {
     if (visibleApps.codex) return "codex";
     if (visibleApps.gemini) return "gemini";
     if (visibleApps.opencode) return "opencode";
+    if (visibleApps.openclaw) return "openclaw";
     return "claude"; // fallback
   };
 
@@ -586,7 +588,7 @@ function App() {
           return (
             <SkillsPage
               ref={skillsPageRef}
-              initialApp={activeApp === "opencode" ? "claude" : activeApp}
+              initialApp={activeApp === "opencode" || activeApp === "openclaw" ? "claude" : activeApp}
             />
           );
         case "mcp":