fix(sdk): show Header + Sidebar on project list page too

The ProjectSelector page now renders inside the standard SDK layout
with header, sidebar and navigation — consistent with all other pages.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

admin-compliance/app/sdk/layout.tsx

@@ -189,18 +189,16 @@ function SDKInnerLayout({ children }: { children: React.ReactNode }) {
 
   return (
     <div className="min-h-screen bg-gray-50">
-      {/* Sidebar — only show when a project is selected */}
-      {projectId && (
-        <SDKSidebar
-          collapsed={sidebarCollapsed}
-          onCollapsedChange={handleCollapsedChange}
-        />
-      )}
+      {/* Sidebar — always visible */}
+      <SDKSidebar
+        collapsed={sidebarCollapsed}
+        onCollapsedChange={handleCollapsedChange}
+      />
 
       {/* Main Content - dynamic margin based on sidebar state */}
-      <div className={`${projectId ? (sidebarCollapsed ? 'ml-16' : 'ml-64') : ''} flex flex-col min-h-screen transition-all duration-300`}>
-        {/* Header — only show when a project is selected */}
-        {projectId && <SDKHeader sidebarCollapsed={sidebarCollapsed} />}
+      <div className={`${sidebarCollapsed ? 'ml-16' : 'ml-64'} flex flex-col min-h-screen transition-all duration-300`}>
+        {/* Header — always visible */}
+        <SDKHeader sidebarCollapsed={sidebarCollapsed} />
 
         {/* Page Content */}
         <main className="flex-1 p-6">{children}</main>