diff --git a/modules/button-collapse.js b/modules/button-collapse.js
deleted file mode 100644
index 94aed2a..0000000
--- a/modules/button-collapse.js
+++ /dev/null
@@ -1,257 +0,0 @@
-let stylesInjected = false;
-
-const SELECTORS = {
-  chat: '#chat',
-  messages: '.mes',
-  mesButtons: '.mes_block .mes_buttons',
-  buttons: '.memory-button, .dynamic-prompt-analysis-btn, .mes_history_preview',
-  collapse: '.xiaobaix-collapse-btn',
-};
-
-const XPOS_KEY = 'xiaobaix_x_btn_position';
-const getXBtnPosition = () => {
-  try {
-    return (
-      window?.extension_settings?.LittleWhiteBox?.xBtnPosition ||
-      localStorage.getItem(XPOS_KEY) ||
-      'name-left'
-    );
-  } catch {
-    return 'name-left';
-  }
-};
-
-const injectStyles = () => {
-  if (stylesInjected) return;
-  const css = `
-.mes_block .mes_buttons{align-items:center}
-.xiaobaix-collapse-btn{
-position:relative;display:inline-flex;width:32px;height:32px;justify-content:center;align-items:center;
-border-radius:50%;background:var(--SmartThemeBlurTintColor);cursor:pointer;
-box-shadow:inset 0 0 15px rgba(0,0,0,.6),0 2px 8px rgba(0,0,0,.2);
-transition:opacity .15s ease,transform .15s ease}
-.xiaobaix-xstack{position:relative;display:inline-flex;align-items:center;justify-content:center;pointer-events:none}
-.xiaobaix-xstack span{
-position:absolute;font:italic 900 20px 'Arial Black',sans-serif;letter-spacing:-2px;transform:scaleX(.8);
-text-shadow:0 0 10px rgba(255,255,255,.5),0 0 20px rgba(100,200,255,.3);color:#fff}
-.xiaobaix-xstack span:nth-child(1){color:rgba(255,255,255,.1);transform:scaleX(.8) translateX(-8px);text-shadow:none}
-.xiaobaix-xstack span:nth-child(2){color:rgba(255,255,255,.2);transform:scaleX(.8) translateX(-4px);text-shadow:none}
-.xiaobaix-xstack span:nth-child(3){color:rgba(255,255,255,.4);transform:scaleX(.8) translateX(-2px);text-shadow:none}
-.xiaobaix-sub-container{display:none;position:absolute;right:38px;border-radius:8px;padding:4px;gap:8px;pointer-events:auto}
-.xiaobaix-collapse-btn.open .xiaobaix-sub-container{display:flex;background:var(--SmartThemeBlurTintColor)}
-.xiaobaix-collapse-btn.open,.xiaobaix-collapse-btn.open ~ *{pointer-events:auto!important}
-.mes_block .mes_buttons.xiaobaix-expanded{width:150px}
-.xiaobaix-sub-container,.xiaobaix-sub-container *{pointer-events:auto!important}
-.xiaobaix-sub-container .memory-button,.xiaobaix-sub-container .dynamic-prompt-analysis-btn,.xiaobaix-sub-container .mes_history_preview{opacity:1!important;filter:none!important}
-.xiaobaix-sub-container.dir-right{left:38px;right:auto;z-index:1000;margin-top:2px}
-`;
-  const style = document.createElement('style');
-  style.textContent = css;
-  document.head.appendChild(style);
-  stylesInjected = true;
-};
-
-const createCollapseButton = (dirRight) => {
-  injectStyles();
-  const btn = document.createElement('div');
-  btn.className = 'mes_btn xiaobaix-collapse-btn';
-  btn.innerHTML = `
-    <div class="xiaobaix-xstack"><span>X</span><span>X</span><span>X</span><span>X</span></div>
-    <div class="xiaobaix-sub-container${dirRight ? ' dir-right' : ''}"></div>
-  `;
-  const sub = btn.lastElementChild;
-
-  ['click','pointerdown','pointerup'].forEach(t => {
-    sub.addEventListener(t, e => e.stopPropagation(), { passive: true });
-  });
-
-  btn.addEventListener('click', (e) => {
-    e.preventDefault(); e.stopPropagation();
-    const open = btn.classList.toggle('open');
-    const mesButtons = btn.closest(SELECTORS.mesButtons);
-    if (mesButtons) mesButtons.classList.toggle('xiaobaix-expanded', open);
-  });
-
-  return btn;
-};
-
-const findInsertPoint = (messageEl) => {
-  return messageEl.querySelector(
-    '.ch_name.flex-container.justifySpaceBetween .flex-container.flex1.alignitemscenter,' +
-    '.ch_name.flex-container.justifySpaceBetween .flex-container.flex1.alignItemsCenter'
-  );
-};
-
-const ensureCollapseForMessage = (messageEl, pos) => {
-  const mesButtons = messageEl.querySelector(SELECTORS.mesButtons);
-  if (!mesButtons) return null;
-
-  let collapseBtn = messageEl.querySelector(SELECTORS.collapse);
-  const dirRight = pos === 'edit-right';
-
-  if (!collapseBtn) collapseBtn = createCollapseButton(dirRight);
-  else collapseBtn.querySelector('.xiaobaix-sub-container')?.classList.toggle('dir-right', dirRight);
-
-  if (dirRight) {
-    const container = findInsertPoint(messageEl);
-    if (!container) return null;
-    if (collapseBtn.parentNode !== container) container.appendChild(collapseBtn);
-  } else {
-    if (mesButtons.lastElementChild !== collapseBtn) mesButtons.appendChild(collapseBtn);
-  }
-  return collapseBtn;
-};
-
-let processed = new WeakSet();
-let io = null;
-let mo = null;
-let queue = [];
-let rafScheduled = false;
-
-const processOneMessage = (message) => {
-  if (!message || processed.has(message)) return;
-
-  const mesButtons = message.querySelector(SELECTORS.mesButtons);
-  if (!mesButtons) { processed.add(message); return; }
-
-  const pos = getXBtnPosition();
-  if (pos === 'edit-right' && !findInsertPoint(message)) { processed.add(message); return; }
-
-  const targetBtns = mesButtons.querySelectorAll(SELECTORS.buttons);
-  if (!targetBtns.length) { processed.add(message); return; }
-
-  const collapseBtn = ensureCollapseForMessage(message, pos);
-  if (!collapseBtn) { processed.add(message); return; }
-
-  const sub = collapseBtn.querySelector('.xiaobaix-sub-container');
-  const frag = document.createDocumentFragment();
-  targetBtns.forEach(b => frag.appendChild(b));
-  sub.appendChild(frag);
-
-  processed.add(message);
-};
-
-const ensureIO = () => {
-  if (io) return io;
-  io = new IntersectionObserver((entries) => {
-    for (const e of entries) {
-      if (!e.isIntersecting) continue;
-      processOneMessage(e.target);
-      io.unobserve(e.target);
-    }
-  }, {
-    root: document.querySelector(SELECTORS.chat) || null,
-    rootMargin: '200px 0px',
-    threshold: 0
-  });
-  return io;
-};
-
-const observeVisibility = (nodes) => {
-  const obs = ensureIO();
-  nodes.forEach(n => { if (n && !processed.has(n)) obs.observe(n); });
-};
-
-const hookMutations = () => {
-  const chat = document.querySelector(SELECTORS.chat);
-  if (!chat) return;
-
-  if (!mo) {
-    mo = new MutationObserver((muts) => {
-      for (const m of muts) {
-        m.addedNodes && m.addedNodes.forEach(n => {
-          if (n.nodeType !== 1) return;
-          const el = n;
-          if (el.matches?.(SELECTORS.messages)) queue.push(el);
-          else el.querySelectorAll?.(SELECTORS.messages)?.forEach(mes => queue.push(mes));
-        });
-      }
-      if (!rafScheduled && queue.length) {
-        rafScheduled = true;
-        requestAnimationFrame(() => {
-          observeVisibility(queue);
-          queue = [];
-          rafScheduled = false;
-        });
-      }
-    });
-  }
-  mo.observe(chat, { childList: true, subtree: true });
-};
-
-const processExistingVisible = () => {
-  const all = document.querySelectorAll(`${SELECTORS.chat} ${SELECTORS.messages}`);
-  if (!all.length) return;
-  const unprocessed = [];
-  all.forEach(n => { if (!processed.has(n)) unprocessed.push(n); });
-  if (unprocessed.length) observeVisibility(unprocessed);
-};
-
-const initButtonCollapse = () => {
-  injectStyles();
-  hookMutations();
-  processExistingVisible();
-  if (window && window['registerModuleCleanup']) {
-    try { window['registerModuleCleanup']('buttonCollapse', cleanup); } catch {}
-  }
-};
-
-const processButtonCollapse = () => {
-  processExistingVisible();
-};
-
-const registerButtonToSubContainer = (messageId, buttonEl) => {
-  if (!buttonEl) return false;
-  const message = document.querySelector(`${SELECTORS.chat} ${SELECTORS.messages}[mesid="${messageId}"]`);
-  if (!message) return false;
-
-  processOneMessage(message);
-
-  const pos = getXBtnPosition();
-  const collapseBtn = message.querySelector(SELECTORS.collapse) || ensureCollapseForMessage(message, pos);
-  if (!collapseBtn) return false;
-
-  const sub = collapseBtn.querySelector('.xiaobaix-sub-container');
-  sub.appendChild(buttonEl);
-  buttonEl.style.pointerEvents = 'auto';
-  buttonEl.style.opacity = '1';
-  return true;
-};
-
-const cleanup = () => {
-  io?.disconnect(); io = null;
-  mo?.disconnect(); mo = null;
-  queue = [];
-  rafScheduled = false;
-
-  document.querySelectorAll(SELECTORS.collapse).forEach(btn => {
-    const sub = btn.querySelector('.xiaobaix-sub-container');
-    const message = btn.closest(SELECTORS.messages) || btn.closest('.mes');
-    const mesButtons = message?.querySelector(SELECTORS.mesButtons) || message?.querySelector('.mes_buttons');
-    if (sub && mesButtons) {
-      mesButtons.classList.remove('xiaobaix-expanded');
-      const frag = document.createDocumentFragment();
-      while (sub.firstChild) frag.appendChild(sub.firstChild);
-      mesButtons.appendChild(frag);
-    }
-    btn.remove();
-  });
-
-  processed = new WeakSet();
-};
-
-if (typeof window !== 'undefined') {
-  Object.assign(window, {
-    initButtonCollapse,
-    cleanupButtonCollapse: cleanup,
-    registerButtonToSubContainer,
-    processButtonCollapse,
-  });
-
-  document.addEventListener('xiaobaixEnabledChanged', (e) => {
-    const en = e && e.detail && e.detail.enabled;
-    if (!en) cleanup();
-  });
-}
-
-export { initButtonCollapse, cleanup, registerButtonToSubContainer, processButtonCollapse };