\n ${renderStories()}\n

\n ${postsHtml || emptyFeed()}\n

Release to refresh

\n `;\n\n attachPostListeners();\n attachStoryListeners();\n setupPullToRefresh();\n}\n\nfunction emptyFeed() {\n return `

No posts yet

Be the first to share something!

`;\n}\n\nfunction renderStories() {\n const onlineIds = Object.keys(presenceProfiles).filter(id => id !== room.clientId);\n const npcStories = appStories.filter(s => !s.isUser);\n const liveStories = onlineIds.map(id => {\n const user = getUser(id);\n return { id, name: user?.name || 'Unknown', avatar: user?.avatar || defaultUser.avatar, isUser: false, seen: false, live: true };\n });\n\n return `\n

\n ${renderStoryItem({ id: 'me', name: 'Your story', avatar: getUser('me').avatar, isUser: true, seen: false })}\n ${liveStories.map(renderStoryItem).join('')}\n ${npcStories.map(renderStoryItem).join('')}\n

\n `;\n}\n\nfunction renderStoryItem(story) {\n return `\n

\n $\"${story.name}\"$ \n ${story.isUser ? '

' : ''}\n ${story.live ? 'LIVE' : ''}\n

\n ${story.name}\n

\n `;\n}\n\nfunction renderPost(post) {\n const user = getUser(post.userId) || defaultUser;\n const verifiedBadge = user.verified ? `` : '';\n const mediaHtml = post.image ? ` $\"Post$ ` : '';\n const commentsArr = Object.values(post.comments || {});\n const commentsPreview = commentsArr.length > 0 ? `

View all ${commentsArr.length} comments

` : '';\n const likeCount = Object.values(post.likedBy || {}).filter(Boolean).length;\n const shareCount = Object.keys(post.sharesBy || {}).length;\n const iLiked = !!(post.likedBy || {})[room.clientId];\n const iBookmarked = !!myBookmarks[post.id];\n\n return `\n

\n $\"${user.name}\"$ \n

\n ${user.name}${verifiedBadge}\n ${user.handle} · ${formatTime(post.time)}\n

\n \n

${escapeHtml(post.content)}

\n ${mediaHtml}\n

\n \n \n \n

\n \n

\n ${commentsPreview}\n

\n `;\n}\n\nfunction attachPostListeners() {\n mainContent.querySelectorAll('.post').forEach(postEl => {\n const postId = postEl.dataset.postId;\n postEl.querySelector('.like-btn').addEventListener('click', () => toggleLike(postId));\n postEl.querySelector('.comment-btn').addEventListener('click', () => openComments(postId));\n postEl.querySelector('.share-btn').addEventListener('click', () => sharePost(postId));\n postEl.querySelector('.bookmark-btn').addEventListener('click', () => toggleBookmark(postId));\n postEl.querySelector('.more-btn').addEventListener('click', () => showToast('More options coming soon'));\n });\n}\n\nfunction attachStoryListeners() {\n mainContent.querySelectorAll('.story').forEach(storyEl => {\n storyEl.addEventListener('click', () => {\n const storyId = storyEl.dataset.storyId;\n if (storyId === 'me') {\n showToast('Added to your story');\n return;\n }\n showToast('Viewing story');\n });\n });\n}\n\nfunction setupPullToRefresh() { /* same */ }\n\nfunction toggleLike(postId) {\n const post = (room.roomState.posts || {})[postId];\n if (!post) return;\n const currentlyLiked = !!(post.likedBy || {})[room.clientId];\n room.updateRoomState({\n posts: {\n [postId]: {\n likedBy: {\n [room.clientId]: !currentlyLiked\n }\n }\n }\n });\n if (!currentlyLiked) addPoints(5);\n}\n\nfunction toggleBookmark(postId) {\n if (myBookmarks[postId]) {\n delete myBookmarks[postId];\n } else {\n myBookmarks[postId] = true;\n }\n saveToStorage('pulse_bookmarks', myBookmarks);\n renderCurrentView();\n showToast(myBookmarks[postId] ? 'Saved to bookmarks' : 'Removed from bookmarks');\n}\n\nfunction sharePost(postId) {\n const post = (room.roomState.posts || {})[postId];\n if (!post) return;\n room.updateRoomState({\n posts: {\n [postId]: {\n sharesBy: {\n [room.clientId]: true\n }\n }\n }\n });\n showToast('Shared to your timeline');\n addPoints(10);\n}\n\nfunction publishNewPost() {\n const content = postInput.value.trim();\n if (!content) return;\n\n const id = `p${generateId()}`;\n const newPost = {\n id,\n userId: room.clientId,\n content,\n image: null,\n likedBy: {},\n comments: {},\n sharesBy: {},\n time: Date.now()\n };\n\n room.updateRoomState({\n posts: {\n [id]: newPost\n }\n });\n\n const me = room.presence[room.clientId];\n room.updatePresence({\n ...me,\n posts: (me.posts || 0) + 1,\n points: (me.points || 0) + 20\n });\n\n postInput.value = '';\n charCount.textContent = '0/500';\n publishPost.disabled = true;\n closeCreateModal();\n switchView('feed');\n showToast('Posted!');\n}\n\nfunction openComments(postId) {\n activePostId = postId;\n renderCommentsList();\n commentsModal.classList.add('show');\n setTimeout(() => commentInput.focus(), 300);\n}\n\nfunction closeCommentsModal() {\n commentsModal.classList.remove('show');\n commentInput.value = '';\n sendComment.disabled = true;\n activePostId = null;\n}\n\nfunction renderCommentsList() {\n const post = (room.roomState.posts || {})[activePostId];\n if (!post) return;\n const comments = Object.values(post.comments || {});\n const commentsHtml = comments.map(comment => {\n const user = getUser(comment.userId) || defaultUser;\n return `\n

\n $\"${user.name}\"$ \n

${user.name}

${escapeHtml(comment.text)}

\n `;\n }).join('');\n\n commentsList.innerHTML = commentsHtml || '

No comments yet

';\n}\n\nfunction submitComment() {\n if (!activePostId) return;\n const text = commentInput.value.trim();\n if (!text) return;\n\n const commentId = `c${generateId()}`;\n room.updateRoomState({\n posts: {\n [activePostId]: {\n comments: {\n [commentId]: {\n id: commentId,\n userId: room.clientId,\n text,\n time: Date.now()\n }\n }\n }\n }\n });\n\n renderCommentsList();\n renderCurrentView();\n commentInput.value = '';\n sendComment.disabled = true;\n showToast('Comment added');\n addPoints(8);\n}\n\nfunction addPoints(amount) {\n const me = room.presence[room.clientId];\n const newPoints = (me.points || 0) + amount;\n const newLevel = Math.floor(newPoints / 100) + 1;\n room.updatePresence({\n ...me,\n points: newPoints,\n level: newLevel\n });\n}\n\nfunction openCreateModal() {\n createModal.classList.add('show');\n setTimeout(() => postInput.focus(), 300);\n}\n\nfunction closeCreateModal() {\n createModal.classList.remove('show');\n}\n\nfunction renderExplore() { /* similar, using current posts maybe */ }\nfunction renderNotifications() { /* generate from state */ }\nfunction renderProfile() { /* use presence */ }\n\nfunction escapeHtml(text) { /* same */ }\n\ninit();\n```\n\nI need to also add CSS for live badge and maybe online indicator.\n\nI need to make sure the full app.js is coherent. Let me write the complete new app.js carefully.\n\nAlso need to handle that `room.peers` may not include the current client immediately? The docs say it includes your own. Good.\n\nOne issue: `room.presence` and `room.roomState` are readonly but updated. I should read from them directly.\n\nAnother issue: when updating roomState with nested objects, does it merge deeply? The docs example shows updating subset: `room.updateRoomState({ objectPositions: { \"rock-1\": { x: 110 } } });`. It seems to merge at the top level and replace nested? Actually from the example, updating `objectPositions[\"rock-1\"].x` keeps other properties of rock-1. So it does deep merge? Or at least merge within the object. I'll assume it merges.\n\nBut for posts, when I update `posts[postId].likedBy[clientId]`, I want to merge not replace. Based on examples, it should merge.\n\nFor arrays in roomState, I avoided them.\n\nNow for notifications, I can generate them from recent activity on your posts. Let's do that:\n\n- For each post where post.userId === room.clientId, for each like from another user, create a notification. For each comment from another user, create a notification. Limit to recent 20.\n\nFor explore, I can use a mix of exploreImages and posts with images.\n\nFor profile, I need to use presence data for stats. posts count from presence, followers/following from presence.\n\nI should also add follow button functionality. In profile, if viewing another user's profile? Currently only own profile. I could keep it that way but add follow from notifications? Hmm. To make it multiplayer, maybe I can tap on a user in comments to follow them. But that adds complexity. I'll keep profile as own profile and add a \"Follow back\" action in notifications if it's a follow notification. Actually the requestPresenceUpdate example is for follows. So when a user follows another, they requestPresenceUpdate with type: 'follow'. The recipient increments followers.\n\nI can add follow buttons in stories or comments. Simpler: add a follow button on user story view? Not needed.\n\nI'll add a follow action when tapping a notification of type 'follow'. Actually those are static. For real follows via requestPresenceUpdate, I need a UI to follow someone. Let me add a small \"Follow\" button on comments from other users. Or in story view. \n\nMaybe simpler: when viewing a live user's story, show follow option. But that's modal work.\n\nI'll add a follow button on each comment if the commenter is not me. That's easy.\n\nAlso in profile, I'll show my level/points.\n\nLet me update index.html to add level/points placeholders? I can just inject them in renderProfile.\n\nCSS additions:\n- live-badge in story ring\n- online dot maybe\n- points/level display in profile\n\nLet me add CSS for live-badge.\n\nNow, for the summary, I need to describe actual changes in tweet length (~280 chars).\n\nLet me write the final files.\n\nGiven the complexity, I'll rewrite app.js entirely, make minor data.js changes, minor styles.css additions.\n\nActually, do I need to change data.js? The currentUser object is used as default. I can keep it. But I should remove `posts: 87`? No, it's a default. It will be overridden by presence. Keep it.\n\nBut there's a conflict: in data.js, currentUser.id is 'me', but in app.js, when I check `clientId === room.clientId`, I return user with id 'me'. Good. For posts created by me, userId will be room.clientId, not 'me'. In getUser, I check `clientId === room.clientId`, so it works. But for initialPosts, userIds are 'u1' etc., matched by npc lookup.\n\nWait, in getUser for current client I return id: 'me'. But post.userId for my posts is room.clientId. When rendering, I call getUser(post.userId) where post.userId === room.clientId, so it returns the current user. Good.\n\nFor comments, comment.userId is room.clientId, so getUser works.\n\nOK.\n\nOne more thing: `room.presence[room.clientId]` might not have all fields initially. I set it in init. Good.\n\nLet me now write the complete app.js. I'll be careful with syntax.\n\nFor renderExplore, I'll show trending + a grid of recent media posts.\n\nFor renderNotifications, I'll generate from roomState.\n\nLet me write it all out.\n\nActually, I realize the user's instruction is just \"make it a cloud game (aka online multiplayer game)\". I should keep it relatively simple but functional. The above plan is good.\n\nLet me write the final response with file changes.\n\nI'll include:\n1. app.js (full rewrite)\n2. styles.css (additions)\n3. index.html (small addition for profile level? Actually I can inject via JS)\n4. data.js (maybe no changes needed)\n\nLet me verify data.js doesn't need changes. currentUser still used as default. initialPosts used to seed room state. Good.\n\nBut wait: initialPosts have `likedByMe` and `bookmarked` properties. My normalizePost doesn't include those but it's OK since I compute from likedBy and myBookmarks. I should remove them from initialPosts? Not necessary.\n\nActually normalizePost copies all properties with spread, so likedByMe and bookmarked will be there but unused. Fine.\n\nAlso initialPosts comments are arrays. I convert to object. Good.\n\nLet me write app.js in full.\n\nOne concern: `room.updateRoomState` with nested objects - if it doesn't deep merge, updating `posts[postId].likedBy[clientId]` could overwrite other likedBy entries or other post fields. The docs say \"You can update a subset of the room state\" and show example of updating x only. I'll trust deep merge.\n\nBut to be safe, I can read current state and merge in JS before updating. That's safer. Let me do that for likes/shares/comments/posts.\n\nFor toggleLike:\n```javascript\nconst post = room.roomState.posts[postId];\nroom.updateRoomState({\n posts: {\n [postId]: {\n ...post,\n likedBy: {\n ...post.likedBy,\n [room.clientId]: !post.likedBy[room.clientId]\n }\n }\n }\n});\n```\n\nThis ensures no data loss even if merge is shallow.\n\nFor comments:\n```javascript\nconst post = room.roomState.posts[postId];\nroom.updateRoomState({\n posts: {\n [postId]: {\n ...post,\n comments: {\n ...post.comments,\n [commentId]: { ... }\n }\n }\n }\n});\n```\n\nFor new post:\n```javascript\nroom.updateRoomState({\n posts: {\n [id]: newPost\n }\n});\n```\n\nOK.\n\nFor presence update, similar:\n```javascript\nconst me = room.presence[room.clientId];\nroom.updatePresence({ ...me, posts: me.posts + 1 });\n```\n\nGood.\n\nNow let me write the complete code.\n\nAlso, I need to make sure `renderCurrentView` doesn't re-render while typing in comments? It might. But since comments modal is overlay, re-rendering mainContent shouldn't affect it. However, if a new post comes in while comments modal is open, renderCurrentView will re-render and not affect modal. Good.\n\nBut note: `subscribeRoomState` calls `renderCurrentView()` which for feed re-renders. That could cause issues if user is interacting. But it's fine for this simple app.\n\nOne issue: when `renderFeed` is called, it replaces mainContent HTML, which means event listeners on posts are re-attached. That's OK.\n\nLet me now create the final files.\n\nI'll also add a `.live-badge` CSS class.\n\nAnd maybe `.profile-xp` styling.\n\nLet me write.\n\nFor index.html, I'll add a small script or just keep as is. Since app.js is module, I don't need changes. But I might want to add a live indicator in header? Not necessary.\n\nOK, final output time.\n\nWait, I also need to think about `WebsimSocket` availability. It's global, no import needed. Good.\n\nAlso, `room.clientId` vs `room.client.id`. Docs use `room.client.id`. The API says `readonly clientId: string`. I'll use `room.clientId` as per API. But docs also show `room.client.id`. I'll use `room.clientId`.\n\nActually the API interface says `readonly clientId: string`. Use that.\n\nOK writing now.\n\nLet me also include the requestPresenceUpdate for follows. I'll add a follow button in comments.\n\nIn renderCommentsList:\n```javascript\nconst isMe = comment.userId === room.clientId;\nconst followBtn = !isMe ? `` : '';\n```\nAnd attach listener.\n\nBut where to put it? In comment-body? Maybe next to author. I'll add CSS.\n\nAlso for stories live users, add follow? Not needed.\n\nFor profile, if I view another user? Not implemented. Keep own profile.\n\nLet me write the code now.\n\nGiven length, I'll output app.js as a full code block. The instructions allow creating new text files via code block. Since app.js exists, this might be considered editing. But I'll use SEARCH/REPLACE with the entire file content? That's too long and error-prone.\n\nActually, I can just output the filename with the new content. The system will likely overwrite the file. The instruction says \"To create a new text file, use a markdown code block labeled with the filename.\" It doesn't say it can't overwrite. I'll do that for app.js and styles.css additions via SEARCH/REPLACE or full file. For styles.css, I'll use SEARCH/REPLACE to append at end.\n\nFor app.js, I'll output full file code block.\n\nLet me write it.\n\nWait, I should also maybe add a loading state until room initializes. Currently it renders feed immediately in init before room.initialize. I should await room.initialize before first render. Good, I did that.\n\nBut the screen will be blank until then. That's OK for a moment.\n\nActually, I could render a skeleton first. Not necessary.\n\nOne more thing: when switching to profile, I use presence stats. But initial defaultUser has posts: 87 which is wrong; presence will override after init. But before init completes? switchView won't be called before renderFeed at end of init. Good.\n\nOK, final code.\n\nLet me write app.js fully.\n\nI need to make sure I include all functions referenced.\n\nComplete app.js:\n\n```javascript\nimport { currentUser as defaultUser, stories, users, initialPosts, trends, exploreImages } from './data.js';\nimport { formatTime, formatNumber, generateId, showToast, saveToStorage, loadFromStorage } from './utils.js';\n\nconst room = new WebsimSocket();\n\n// Personal state\nconst myBookmarks = loadFromStorage('pulse_bookmarks', {});\nlet appStories = [...stories];\nlet activeTab = 'posts';\nlet currentView = 'feed';\nlet activePostId = null;\n\n// DOM refs\nconst mainContent = document.getElementById('mainContent');\nconst bottomNav = document.getElementById('bottomNav');\nconst createModal = document.getElementById('createModal');\nconst createBtn = document.getElementById('createBtn');\nconst cancelPost = document.getElementById('cancelPost');\nconst publishPost = document.getElementById('publishPost');\nconst postInput = document.getElementById('postInput');\nconst charCount = document.getElementById('charCount');\nconst commentsModal = document.getElementById('commentsModal');\nconst closeComments = document.getElementById('closeComments');\nconst commentsList = document.getElementById('commentsList');\nconst commentInput = document.getElementById('commentInput');\nconst sendComment = document.getElementById('sendComment');\n\nasync function init() {\n setupEventListeners();\n await room.initialize();\n\n // Seed my presence\n room.updatePresence({\n name: defaultUser.name,\n handle: defaultUser.handle,\n bio: defaultUser.bio,\n avatar: defaultUser.avatar,\n followers: defaultUser.followers,\n following: defaultUser.following,\n posts: defaultUser.posts,\n points: 0,\n level: 1,\n online: true\n });\n\n // Seed room state if empty\n if (!room.roomState.posts) {\n const postsObj = {};\n initialPosts.forEach(post => {\n postsObj[post.id] = normalizePost(post);\n });\n room.updateRoomState({ posts: postsObj });\n }\n\n subscribeToRoom();\n renderFeed();\n showToast('Connected to Pulse');\n}\n\nfunction normalizePost(post) {\n return {\n ...post,\n likedBy: post.likedBy || {},\n comments: Array.isArray(post.comments)\n ? Object.fromEntries(post.comments.map(c => [c.id || `c${generateId()}`, c]))\n : (post.comments || {}),\n sharesBy: post.sharesBy || {},\n time: post.time || Date.now()\n };\n}\n\nfunction subscribeToRoom() {\n room.subscribePresence(() => {\n renderCurrentView();\n });\n\n room.subscribeRoomState(() => {\n renderCurrentView();\n });\n\n room.subscribePresenceUpdateRequests((request, fromClientId) => {\n if (request.type === 'follow') {\n const me = room.presence[room.clientId];\n room.updatePresence({\n ...me,\n followers: (me.followers || 0) + 1\n });\n const name = room.peers[fromClientId]?.username || 'Someone';\n showToast(`${name} followed you`);\n }\n });\n}\n\nfunction renderCurrentView() {\n switch (currentView) {\n case 'feed': renderFeed(); break;\n case 'explore': renderExplore(); break;\n case 'notifications': renderNotifications(); break;\n case 'profile': renderProfile(); break;\n }\n}\n\nfunction setupEventListeners() {\n bottomNav.querySelectorAll('.nav-item[data-view]').forEach(item => {\n item.addEventListener('click', () => switchView(item.dataset.view));\n });\n\n createBtn.addEventListener('click', openCreateModal);\n cancelPost.addEventListener('click', closeCreateModal);\n\n postInput.addEventListener('input', () => {\n const len = postInput.value.length;\n charCount.textContent = `${len}/500`;\n publishPost.disabled = len === 0;\n });\n\n publishPost.addEventListener('click', publishNewPost);\n\n closeComments.addEventListener('click', closeCommentsModal);\n commentInput.addEventListener('input', () => {\n sendComment.disabled = commentInput.value.trim().length === 0;\n });\n sendComment.addEventListener('click', submitComment);\n\n createModal.addEventListener('click', (e) => {\n if (e.target === createModal) closeCreateModal();\n });\n commentsModal.addEventListener('click', (e) => {\n if (e.target === commentsModal) closeCommentsModal();\n });\n\n document.getElementById('cameraBtn').addEventListener('click', () => showToast('Camera coming soon'));\n document.getElementById('messagesBtn').addEventListener('click', () => showToast('Messages coming soon'));\n}\n\nfunction switchView(view) {\n currentView = view;\n bottomNav.querySelectorAll('.nav-item[data-view]').forEach(item => {\n item.classList.toggle('active', item.dataset.view === view);\n });\n renderCurrentView();\n}\n\nfunction getAllPosts() {\n return Object.values(room.roomState.posts || {}).sort((a, b) => b.time - a.time);\n}\n\nfunction getUser(clientId) {\n if (clientId === room.clientId) {\n const me = room.presence[room.clientId];\n const peer = room.peers[room.clientId];\n return {\n id: 'me',\n name: peer?.username || me?.name || defaultUser.name,\n handle: me?.handle || defaultUser.handle,\n avatar: peer?.avatarUrl || me?.avatar || defaultUser.avatar,\n verified: true\n };\n }\n const npc = users.find(u => u.id === clientId);\n if (npc) return npc;\n const peer = room.peers[clientId];\n if (peer) {\n return {\n id: clientId,\n name: peer.username,\n handle: `@${peer.username.toLowerCase().replace(/\\s+/g, '')}`,\n avatar: peer.avatarUrl,\n verified: false\n };\n }\n return null;\n}\n\nfunction isOnline(clientId) {\n return !!room.presence[clientId]?.online;\n}\n\nfunction renderFeed() {\n const posts = getAllPosts();\n mainContent.innerHTML = `\n

\n ${renderStories()}\n

\n ${posts.map(renderPost).join('') || emptyFeed()}\n

Release to refresh

\n `;\n attachPostListeners();\n attachStoryListeners();\n setupPullToRefresh();\n}\n\nfunction emptyFeed() {\n return `

No posts yet

Be the first to share something!

`;\n}\n\nfunction renderStories() {\n const onlineIds = Object.keys(room.presence).filter(id => id !== room.clientId);\n const liveStories = onlineIds.map(id => {\n const user = getUser(id);\n return { id, name: user?.name || 'Unknown', avatar: user?.avatar || defaultUser.avatar, seen: false, live: true };\n });\n const npcStories = appStories.filter(s => !s.isUser);\n\n return `\n

\n ${renderStoryItem({ id: 'me', name: 'Your story', avatar: getUser(room.clientId).avatar, isUser: true, seen: false })}\n ${liveStories.map(renderStoryItem).join('')}\n ${npcStories.map(renderStoryItem).join('')}\n

\n `;\n}\n\nfunction renderStoryItem(story) {\n return `\n

\n $\"${story.name}\"$ \n ${story.isUser ? '

' : ''}\n ${story.live ? 'LIVE' : ''}\n

\n ${story.name}\n

View all ${commentsArr.length} comments

\n $\"${user.name}\"$ \n

\n ${user.name}${verifiedBadge}\n ${user.handle} · ${formatTime(post.time)}\n

\n \n

${escapeHtml(post.content)}

\n ${mediaHtml}\n

\n \n \n \n

\n \n

\n ${commentsPreview}\n

\n `;\n}\n\nfunction attachPostListeners() {\n mainContent.querySelectorAll('.post').forEach(postEl => {\n const postId = postEl.dataset.postId;\n postEl.querySelector('.like-btn').addEventListener('click', () => toggleLike(postId));\n postEl.querySelector('.comment-btn').addEventListener('click', () => openComments(postId));\n postEl.querySelector('.share-btn').addEventListener('click', () => sharePost(postId));\n postEl.querySelector('.bookmark-btn').addEventListener('click', () => toggleBookmark(postId));\n postEl.querySelector('.more-btn').addEventListener('click', () => showToast('More options coming soon'));\n });\n}\n\nfunction attachStoryListeners() {\n mainContent.querySelectorAll('.story').forEach(storyEl => {\n storyEl.addEventListener('click', () => {\n const storyId = storyEl.dataset.storyId;\n if (storyId === 'me') {\n showToast('Added to your story');\n return;\n }\n showToast('Viewing story');\n });\n });\n}\n\nfunction setupPullToRefresh() {\n let startY = 0;\n let isPulling = false;\n const indicator = document.getElementById('ptrIndicator');\n if (!indicator) return;\n\n mainContent.addEventListener('touchstart', (e) => {\n if (mainContent.scrollTop === 0) {\n startY = e.touches[0].clientY;\n isPulling = true;\n }\n }, { passive: true });\n\n mainContent.addEventListener('touchmove', (e) => {\n if (!isPulling) return;\n const diff = e.touches[0].clientY - startY;\n if (diff > 80) {\n indicator.textContent = 'Release to refresh';\n indicator.classList.add('show');\n }\n }, { passive: true });\n\n mainContent.addEventListener('touchend', () => {\n if (!isPulling) return;\n isPulling = false;\n if (indicator.classList.contains('show')) {\n indicator.textContent = 'Refreshing...';\n setTimeout(() => {\n indicator.classList.remove('show');\n showToast('Feed refreshed');\n }, 1000);\n }\n });\n}\n\nfunction toggleLike(postId) {\n const post = (room.roomState.posts || {})[postId];\n if (!post) return;\n const currentlyLiked = !!(post.likedBy || {})[room.clientId];\n room.updateRoomState({\n posts: {\n [postId]: {\n ...post,\n likedBy: {\n ...post.likedBy,\n [room.clientId]: !currentlyLiked\n }\n }\n }\n });\n if (!currentlyLiked) addPoints(5);\n}\n\nfunction toggleBookmark(postId) {\n if (myBookmarks[postId]) {\n delete myBookmarks[postId];\n } else {\n myBookmarks[postId] = true;\n }\n saveToStorage('pulse_bookmarks', myBookmarks);\n renderCurrentView();\n showToast(myBookmarks[postId] ? 'Saved to bookmarks' : 'Removed from bookmarks');\n}\n\nfunction sharePost(postId) {\n const post = (room.roomState.posts || {})[postId];\n if (!post) return;\n room.updateRoomState({\n posts: {\n [postId]: {\n ...post,\n sharesBy: {\n ...post.sharesBy,\n [room.clientId]: true\n }\n }\n }\n });\n showToast('Shared to your timeline');\n addPoints(10);\n}\n\nfunction publishNewPost() {\n const content = postInput.value.trim();\n if (!content) return;\n\n const id = `p${generateId()}`;\n room.updateRoomState({\n posts: {\n [id]: {\n id,\n userId: room.clientId,\n content,\n image: null,\n likedBy: {},\n comments: {},\n sharesBy: {},\n time: Date.now()\n }\n }\n });\n\n const me = room.presence[room.clientId];\n room.updatePresence({\n ...me,\n posts: (me.posts || 0) + 1,\n points: (me.points || 0) + 20\n });\n\n postInput.value = '';\n charCount.textContent = '0/500';\n publishPost.disabled = true;\n closeCreateModal();\n switchView('feed');\n showToast('Posted!');\n}\n\nfunction openComments(postId) {\n activePostId = postId;\n renderCommentsList();\n commentsModal.classList.add('show');\n setTimeout(() => commentInput.focus(), 300);\n}\n\nfunction closeCommentsModal() {\n commentsModal.classList.remove('show');\n commentInput.value = '';\n sendComment.disabled = true;\n activePostId = null;\n}\n\nfunction renderCommentsList() {\n const post = (room.roomState.posts || {})[activePostId];\n if (!post) return;\n const comments = Object.values(post.comments || {});\n const commentsHtml = comments.map(comment => {\n const user = getUser(comment.userId) || defaultUser;\n const isMe = comment.userId === room.clientId;\n const followBtn = !isMe\n ? ``\n : '';\n return `\n

\n $\"${user.name}\"$ \n

${user.name} ${followBtn}

${escapeHtml(comment.text)}

\n `;\n }).join('');\n\n commentsList.innerHTML = commentsHtml || '

No comments yet

';\n\n commentsList.querySelectorAll('.follow-link').forEach(btn => {\n btn.addEventListener('click', () => followUser(btn.dataset.userId));\n });\n}\n\nfunction followUser(clientId) {\n room.requestPresenceUpdate(clientId, { type: 'follow' });\n const me = room.presence[room.clientId];\n room.updatePresence({\n ...me,\n following: (me.following || 0) + 1\n });\n showToast('Followed');\n addPoints(15);\n}\n\nfunction submitComment() {\n if (!activePostId) return;\n const text = commentInput.value.trim();\n if (!text) return;\n\n const post = (room.roomState.posts || {})[activePostId];\n if (!post) return;\n\n const commentId = `c${generateId()}`;\n room.updateRoomState({\n posts: {\n [activePostId]: {\n ...post,\n comments: {\n ...post.comments,\n [commentId]: {\n id: commentId,\n userId: room.clientId,\n text,\n time: Date.now()\n }\n }\n }\n }\n });\n\n renderCommentsList();\n renderCurrentView();\n commentInput.value = '';\n sendComment.disabled = true;\n showToast('Comment added');\n addPoints(8);\n}\n\nfunction addPoints(amount) {\n const me = room.presence[room.clientId];\n const newPoints = (me.points || 0) + amount;\n const newLevel = Math.floor(newPoints / 100) + 1;\n room.updatePresence({\n ...me,\n points: newPoints,\n level: newLevel\n });\n}\n\nfunction openCreateModal() {\n createModal.classList.add('show');\n setTimeout(() => postInput.focus(), 300);\n}\n\nfunction closeCreateModal() {\n createModal.classList.remove('show');\n}\n\nfunction renderExplore() {\n const mediaPosts = getAllPosts().filter(p => p.image);\n mainContent.innerHTML = `\n

\n \n \n

\n \n

Discover

\n ${mediaPosts.slice(0, 9).map(post => `\n

\n $\"Explore\"$ \n

\n `).join('') || exploreImages.map(img => `

$\"Explore\"$

`).join('')}\n

\n `;\n\n document.getElementById('searchInput').addEventListener('focus', () => {\n showToast('Search coming soon');\n });\n\n mainContent.querySelectorAll('.grid-grid-item').forEach(item => {\n item.addEventListener('click', () => showToast('Opening post...'));\n });\n}\n\nfunction renderNotifications() {\n const notifs = buildNotifications();\n mainContent.innerHTML = `\n

Notifications

\n ${notifs.map(notif => `\n

\n \n

\n ${notif.user} ${notif.text}\n

${notif.time}

\n `).join('') || '

No notifications yet

'}\n

\n `;\n}\n\nfunction buildNotifications() {\n const list = [];\n const myPosts = getAllPosts().filter(p => p.userId === room.clientId);\n\n myPosts.forEach(post => {\n Object.entries(post.likedBy || {}).forEach(([uid, liked]) => {\n if (liked && uid !== room.clientId) {\n const user = getUser(uid);\n list.push({\n id: `like-${uid}-${post.id}`,\n type: 'like',\n icon: 'heart',\n user: user?.name || 'Someone',\n text: 'liked your post',\n time: formatTime(post.time),\n read: true\n });\n }\n });\n\n Object.values(post.comments || {}).forEach(comment => {\n if (comment.userId !== room.clientId) {\n const user = getUser(comment.userId);\n list.push({\n id: `comment-${comment.id}`,\n type: 'mention',\n icon: 'at',\n user: user?.name || 'Someone',\n text: 'commented on your post',\n time: formatTime(comment.time || post.time),\n read: true\n });\n }\n });\n });\n\n return list.slice(0, 20);\n}\n\nfunction getNotificationIcon(icon) {\n switch (icon) {\n case 'heart': return '';\n case 'user': return '';\n case 'at': return '';\n default: return '';\n }\n}\n\nfunction renderProfile() {\n const me = room.presence[room.clientId] || defaultUser;\n const user = getUser(room.clientId);\n mainContent.innerHTML = `\n

\n $\"${user.name}\"$ \n

\n ${user.name}\n \n

${user.handle}

\n LVL ${me.level || 1}\n ${me.points || 0} pts\n

${formatNumber(me.posts || 0)}

Posts

${formatNumber(me.followers || 0)}

Followers

${formatNumber(me.following || 0)}

Following

${me.bio || defaultUser.bio}

\n \n \n

\n \n \n \n

\n `;\n\n renderProfileContent();\n\n document.getElementById('editProfileBtn').addEventListener('click', () => showToast('Edit profile coming soon'));\n document.getElementById('shareProfileBtn').addEventListener('click', () => showToast('Profile link copied'));\n\n mainContent.querySelectorAll('.profile-tab').forEach(tab => {\n tab.addEventListener('click', () => {\n activeTab = tab.dataset.tab;\n renderProfile();\n });\n });\n}\n\nfunction renderProfileContent() {\n const container = document.getElementById('profileContent');\n if (!container) return;\n\n let content = '';\n if (activeTab === 'posts') {\n const myPosts = getAllPosts().filter(p => p.userId === room.clientId);\n content = myPosts.length\n ? `

${myPosts.map(post => renderPost(post)).join('')}

`\n : '

No posts yet

Share your first post with the world

';\n } else if (activeTab === 'media') {\n const mediaPosts = getAllPosts().filter(p => p.userId === room.clientId && p.image);\n content = mediaPosts.length\n ? `

${mediaPosts.map(post => `

$\"Media\"$

`).join('')}

`\n : '

No media yet

Posts with photos appear here

';\n } else if (activeTab === 'likes') {\n const likedPostIds = Object.keys(myBookmarks);\n const likedPosts = getAllPosts().filter(p => likedPostIds.includes(p.id));\n content = likedPosts.length\n ? `

${likedPosts.map(post => renderPost(post)).join('')}

`\n : '

No likes yet

Posts you like appear here

';\n }\n\n container.innerHTML = content;\n attachPostListeners();\n}\n\nfunction escapeHtml(text) {\n const div = document.createElement('div');\n div.textContent = text;\n return div.innerHTML;\n}\n\ninit();\n```\n\nWait, in renderExplore I have a typo: `.grid-grid-item` should be `.grid-item`. Let me fix.\n\nAlso `renderNotifications` uses notifs array, fine.\n\nI removed `notifications` import from data.js because I generate them. Good.\n\nI should also update data.js import in app.js - I removed notifications. Good.\n\nNow CSS additions:\n\n```css\n.live-badge {\n position: absolute;\n bottom: 22px;\n right: -4px;\n background: var(--danger);\n color: white;\n font-size: 8px;\n font-weight: 800;\n padding: 2px 5px;\n border-radius: 4px;\n border: 2px solid var(--bg-primary);\n letter-spacing: 0.5px;\n}\n\n.story-ring {\n position: relative;\n}\n\n.profile-xp {\n display: flex;\n align-items: center;\n gap: 8px;\n margin-bottom: 10px;\n}\n\n.level-badge {\n background: linear-gradient(135deg, var(--accent), var(--accent-light));\n color: white;\n font-size: 10px;\n font-weight: 800;\n padding: 3px 8px;\n border-radius: 12px;\n}\n\n.points {\n font-size: 12px;\n color: var(--text-secondary);\n font-weight: 600;\n}\n\n.follow-link {\n background: transparent;\n border: none;\n color: var(--accent-light);\n font-size: 12px;\n font-weight: 700;\n padding: 0;\n margin-left: 6px;\n cursor: pointer;\n}\n```\n\nI'll add these via SEARCH/REPLACE at the end of styles.css.\n\nFor index.html, maybe no changes needed. But I should ensure the comments modal has the right structure. It does.\n\nOne issue: in the original, `renderProfile` had `profile-stats` directly under `profile-meta`, but now I added `profile-xp` before it. The CSS should handle it.\n\nAlso, I need to make sure `renderFeed` doesn't fail before room init. But init awaits room.initialize before renderFeed. Good.\n\nLet me finalize.\n\nI should write the summary after the code.\n\nSummary should be tweet length. Example:\n\"Summary: I wired Pulse into WebsimSocket so posts, likes, comments, and follows sync live across clients. Added online story rings, XP/levels, and replaced localStorage posts with shared room state.\"\n\nThat's about right.\n\nNow output files.\n\nGiven the system might expect SEARCH/REPLACE for edits, I'll provide app.js as full code block (overwrite), and styles.css as SEARCH/REPLACE to append. data.js no changes. index.html no changes.\n\nWait, the instruction says for edits use SEARCH/REPLACE. For full file rewrite, maybe I should still use SEARCH/REPLACE with the entire old content. But that's huge. I'll use the full file code block approach. The system likely treats labeled code blocks as file writes.\n\nActually, to be safe, I can use a SEARCH/REPLACE that finds a distinctive top marker and replaces from there? No.\n\nI'll do:\n- app.js: full code block labeled app.js\n- styles.css: SEARCH/REPLACE adding new CSS at end\n\nLet me output.\n\nOne more check: `renderExplore` uses `mediaPosts.slice(0, 9)` but if there are fewer than 9, it falls back to exploreImages. Actually my code: `${mediaPosts.slice(0, 9).map(...).join('') || exploreImages.map(...).join('')}`. If mediaPosts has 1 item, the string is non-empty, so it shows 1 item. That's fine but might look sparse. Better to fill with exploreImages to always have 9. But not critical.\n\nActually for a grid of 3 columns, having 1 item is weird. I'll change to always show 9 items by combining mediaPosts and exploreImages.\n\n```javascript\nconst gridImages = mediaPosts.map(p => p.image).concat(exploreImages).slice(0, 9);\n```\n\nThen use gridImages. Good.\n\nAlso the typo `.grid-grid-item` fix.\n\nLet me adjust.\n\nIn renderExplore:\n```javascript\nconst gridImages = mediaPosts.map(p => p.image).concat(exploreImages).slice(0, 9);\n...\n

\n ${gridImages.map(img => `

$\"Explore\"$

`).join('')}\n

\n```\n\nThen attach listener to `.grid-item`.\n\nGood.\n\nFinal check on `renderNotifications`: `notif.read` is always true in my generated list. That's fine. Could mark unread if time < some threshold. Not needed.\n\nOK final.\n\nLet me write the response.\n\napp.js\n```app.js\n```\n\nstyles.css\n```styles.css\n```\n\nSummary: I wired Pulse into WebsimSocket so posts, likes, comments, and follows sync live across clients. Replaced localStorage posts with shared room state, added LIVE story rings for online users, XP/level progression, and follow buttons in comments.","cursor","eyJpZCI6InBubmp5Zm5yZTBscDY1ZDFtenlhIn0","token","included",[],"routes/browser/layout","actionData","errors"]

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PULSE - Social Media