refactor: move flyout to left side, restore logo, remove close button

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

packages/frontend/src/lib/components/header/header.svelte

@@ -155,18 +155,12 @@
 
 <!-- Flyout panel -->
 <div
-  class={`fixed inset-y-0 right-0 z-50 w-80 max-w-[85vw] bg-card/95 backdrop-blur-xl shadow-2xl shadow-primary/20 border-l border-border/30 transform transition-transform duration-300 ease-in-out lg:hidden overflow-y-auto flex flex-col ${isMobileMenuOpen ? "translate-x-0" : "translate-x-full"}`}
+  class={`fixed inset-y-0 left-0 z-50 w-80 max-w-[85vw] bg-card/95 backdrop-blur-xl shadow-2xl shadow-primary/20 border-r border-border/30 transform transition-transform duration-300 ease-in-out lg:hidden overflow-y-auto flex flex-col ${isMobileMenuOpen ? "translate-x-0" : "-translate-x-full"}`}
   aria-hidden={!isMobileMenuOpen}
 >
   <!-- Panel header -->
-  <div class="flex items-center justify-end px-5 py-4 border-b border-border/30">
-    <button
-      class="cursor-pointer flex items-center justify-center w-8 h-8 rounded-full hover:bg-muted/60 transition-colors text-muted-foreground hover:text-foreground"
-      onclick={closeMenu}
-      aria-label="Close menu"
-    >
-      <span class="icon-[ri--close-line] w-5 h-5"></span>
-    </button>
+  <div class="flex items-center px-5 py-4 border-b border-border/30">
+    <Logo hideName={true} />
   </div>
 
   <div class="flex-1 py-6 px-5 space-y-6">