Add per-player autosaving game notebooks

frontend/src/components/EventLog.svelte

@@ -8,6 +8,7 @@
     // Inline mode pins the log open as a column (scene phase) instead of the
     // floating, collapsible corner panel used in every other phase.
     export let inline = false;
+    export let headerless = false;
 
     const PAGE_SIZE = 50;
     const BOTTOM_TOLERANCE = 40; // px of slack before we consider the player "scrolled away"
@@ -195,12 +196,12 @@
             </button>
         {/key}
     {/if}
-    {#if inline}
+    {#if inline && !headerless}
         <div class="log-header">
             📜 Event Log
             <button class="log-hide-btn" title="Collapse the event log" on:click={() => dispatch('collapse')}>✕</button>
         </div>
-    {:else}
+    {:else if !inline}
         <button class="toggle-log-btn" on:click={toggleOpen}>
             {open ? '⬇️ Hide Log' : '📜 Event Log'}
         </button>