feat(slash-commands): 优化 /goto-floor 命令并加载所有消息

- 在执行 /goto-floor 命令前加载所有消息，确保目标元素存在
- 添加加载消息的步骤，解决因懒加载导致的元素找不到问题

public/scripts/slash-commands.js

@@ -2134,6 +2134,13 @@ export function initDefaultSlashCommands() {
         name: 'goto-floor',
         aliases: ['floor', 'jump', 'scrollto'],
         callback: async (_, index) => {
+            // --- Load all messages first to ensure the target element exists ---
+            console.log(`INFO: Loading all messages before attempting to goto-floor ${index}.`);
+            await showMoreMessages(Number.MAX_SAFE_INTEGER);
+            console.log(`INFO: All messages loaded (or loading initiated).`);
+            // --- End of loading step ---
+    
+    
             const floorIndex = Number(index);
     
             // Validate input
@@ -2144,6 +2151,10 @@ export function initDefaultSlashCommands() {
                 return '';
             }
     
+            // Give the rendering a moment to potentially catch up after showMoreMessages
+            // This might be necessary depending on how showMoreMessages works internally
+            await new Promise(resolve => setTimeout(resolve, 100)); // Adjust delay if needed
+    
             const messageElement = document.querySelector(`[mesid="${floorIndex}"]`);
     
             if (messageElement) {
@@ -2171,8 +2182,10 @@ export function initDefaultSlashCommands() {
                 }, 1500); // Start fade out after 1.5 seconds
     
             } else {
-                toastr.warning(`Could not find element for message ${floorIndex} (using [mesid="${floorIndex}"]). It might not be rendered yet. Try scrolling up or use /chat-render all.`);
+                 // This case is less likely now after showMoreMessages, but still possible
-                console.warn(`WARN: Element not found for message index ${floorIndex} using querySelector [mesid="${floorIndex}"] in /goto-floor.`);
+                 // if the element hasn't been added to the DOM yet for some reason after loading.
+                toastr.warning(`Could not find element for message ${floorIndex} (using [mesid="${floorIndex}"]) even after attempting to load all messages. It might not be rendered yet. Try scrolling up or use /chat-render all again if issues persist.`);
+                console.warn(`WARN: Element not found for message index ${floorIndex} using querySelector [mesid="${floorIndex}"] in /goto-floor, even after attempting to load all messages.`);
                 const chatContainer = document.getElementById('chat');
                 if (chatContainer) {
                     chatContainer.scrollIntoView({ behavior: 'smooth', block: 'start' });
@@ -2192,13 +2205,11 @@ export function initDefaultSlashCommands() {
         <div>
             Scrolls the chat view to the specified message index. Uses the <code>[mesid]</code> attribute for locating the message element. Index starts at 0.
             It attempts to center the character's name/header area within the message block. Highlights the message using the theme's 'matchedText' color with a smooth animation.
+            Automatically attempts to load all messages before scrolling to improve success rate, addressing issues with lazy loading.
         </div>
         <div>
             <strong>Example:</strong> <pre><code>/goto-floor 10</code></pre> Scrolls to the 11th message (mesid=10).
         </div>
-        <div>
-            Note: Due to virtual scrolling, very old messages might need loading first.
-        </div>
     `,
     }));