refact web

src/commands/index.rs

@@ -125,6 +125,19 @@ pub fn run(content_dir: &Path) -> Result<()> {
                     total_updated += 1;
                 }
             }
+
+            // Generate list.json (all records in a single array)
+            let list_path = col_path.join("list.json");
+            let mut records: Vec<serde_json::Value> = Vec::new();
+            for rkey in &rkeys {
+                let file_path = col_path.join(format!("{}.json", rkey));
+                if let Ok(content) = fs::read_to_string(&file_path) {
+                    if let Ok(json) = serde_json::from_str::<serde_json::Value>(&content) {
+                        records.push(json);
+                    }
+                }
+            }
+            fs::write(&list_path, serde_json::to_string(&records)?)?;
         }
     }
 

src/web/components/browser.ts

@@ -1,4 +1,5 @@
 // AT-Browser: Server info and collection hierarchy
+import { escapeHtml } from '../lib/util'
 
 // Group collections by service domain
 function groupCollectionsByService(collections: string[]): Map<string, string[]> {
@@ -241,11 +242,3 @@ function getRecordPreview(value: Record<string, unknown>): string {
   return ''
 }
 
-function escapeHtml(text: string): string {
-  return text
-    .replace(/&/g, '&amp;')
-    .replace(/</g, '&lt;')
-    .replace(/>/g, '&gt;')
-    .replace(/"/g, '&quot;')
-    .replace(/'/g, '&#039;')
-}

src/web/components/card.ts

@@ -1,4 +1,5 @@
 // Card display component for ai.syui.card.user collection
+import { getLocalizedText } from '../lib/util'
 
 export interface UserCard {
   id: number
@@ -29,18 +30,6 @@ export interface CardAdminData {
   card: CardAdminEntry[]
 }
 
-// Get current language
-function getLang(): string {
-  return localStorage.getItem('preferredLang') || 'ja'
-}
-
-// Get localized text
-function getLocalizedText(obj: { ja: string; en: string } | undefined): string {
-  if (!obj) return ''
-  const lang = getLang()
-  return obj[lang as 'ja' | 'en'] || obj.ja || obj.en || ''
-}
-
 // Get rarity class name
 function getRarityClass(card: UserCard): string {
   if (card.unique) return 'unique'

src/web/components/chat-list.ts

@@ -0,0 +1,187 @@
+import type { ChatMessage, Profile } from '../types'
+import { escapeHtml, formatDateTime, getRkeyFromUri, getAuthorityFromUri } from '../lib/util'
+import { buildAuthorMap, resolveAuthorDid, chatTypeSlug, getTranslatedContent } from './chat'
+
+export type { ChatCollectionEntry } from './chat'
+
+const formatChatTime = formatDateTime
+
+// Render chat threads list (conversations this user started)
+export function renderChatThreadList(
+  messages: ChatMessage[],
+  userDid: string,
+  userHandle: string,
+  botDid: string,
+  botHandle: string,
+  userProfile?: Profile | null,
+  botProfile?: Profile | null,
+  pds?: string,
+  chatCollection: string = 'ai.syui.log.chat'
+): string {
+  // Build set of all message URIs
+  const allUris = new Set(messages.map(m => m.uri))
+
+  // Find root messages by this user:
+  // 1. No root field (explicit start of conversation)
+  // 2. Or root points to non-existent message (orphaned, treat as root)
+  //    For orphaned roots, only keep the oldest message per orphaned root URI
+  const orphanedRootFirstMsg = new Map<string, ChatMessage>()
+  const rootMessages: ChatMessage[] = []
+
+  for (const msg of messages) {
+    if (resolveAuthorDid(getAuthorityFromUri(msg.uri)) !== userDid) continue
+
+    if (!msg.value.root) {
+      // No root = explicit conversation start
+      rootMessages.push(msg)
+    } else if (!allUris.has(msg.value.root)) {
+      // Orphaned root - keep only the oldest message per orphaned root
+      const existing = orphanedRootFirstMsg.get(msg.value.root)
+      if (!existing || new Date(msg.value.publishedAt) < new Date(existing.value.publishedAt)) {
+        orphanedRootFirstMsg.set(msg.value.root, msg)
+      }
+    }
+  }
+
+  // Add orphaned root representatives
+  for (const msg of orphanedRootFirstMsg.values()) {
+    rootMessages.push(msg)
+  }
+
+  if (rootMessages.length === 0) {
+    return '<p class="no-posts">No chat threads yet.</p>'
+  }
+
+  const authors = buildAuthorMap(userDid, userHandle, botDid, botHandle, userProfile, botProfile, pds)
+
+  // Sort by publishedAt (newest first)
+  const sorted = [...rootMessages].sort((a, b) =>
+    new Date(b.value.publishedAt).getTime() - new Date(a.value.publishedAt).getTime()
+  )
+
+  const items = sorted.map(msg => {
+    const authorDid = resolveAuthorDid(getAuthorityFromUri(msg.uri))
+    const time = formatChatTime(msg.value.publishedAt)
+    const rkey = getRkeyFromUri(msg.uri)
+    const author = authors.get(authorDid) || { did: authorDid, handle: authorDid.slice(0, 20) + '...' }
+
+    const avatarHtml = author.avatarUrl
+      ? `<img class="chat-avatar" src="${author.avatarUrl}" alt="@${escapeHtml(author.handle)}">`
+      : `<div class="chat-avatar-placeholder"></div>`
+
+    // Truncate content for preview (use translated content, show first 3 lines)
+    const displayContent = getTranslatedContent(msg)
+    const lines = displayContent.split('\n').slice(0, 3)
+    const preview = lines.join('\n')
+
+    return `
+      <a href="/@${userHandle}/at/chat/${chatTypeSlug(chatCollection)}/${rkey}" class="chat-thread-item">
+        <div class="chat-avatar-col">
+          ${avatarHtml}
+        </div>
+        <div class="chat-thread-content">
+          <div class="chat-thread-header">
+            <span class="chat-author">@${escapeHtml(author.handle)}</span>
+            <span class="chat-type-badge" data-type="${chatTypeSlug(chatCollection)}">${chatTypeSlug(chatCollection)}</span>
+            <span class="chat-time">${time}</span>
+          </div>
+          <div class="chat-thread-preview">${escapeHtml(preview)}</div>
+        </div>
+      </a>
+    `
+  }).join('')
+
+  return `<div class="chat-thread-list">${items}</div>`
+}
+
+// Render unified chat list page with filter buttons
+export function renderChatListPage(
+  collections: import('./chat').ChatCollectionEntry[],
+  userDid: string,
+  userHandle: string,
+  botDid: string,
+  botHandle: string,
+  userProfile?: Profile | null,
+  botProfile?: Profile | null,
+  pds?: string
+): string {
+  // Merge all collections into a single list
+  const allMessages: ChatMessage[] = []
+  const messageCollectionMap = new Map<string, string>()
+
+  for (const c of collections) {
+    for (const msg of c.messages) {
+      allMessages.push(msg)
+      messageCollectionMap.set(msg.uri, c.collection)
+    }
+  }
+
+  // Build author map with first collection's params (all share same users)
+  const authors = buildAuthorMap(userDid, userHandle, botDid, botHandle, userProfile, botProfile, pds)
+
+  // Find root messages (same logic as renderChatThreadList)
+  const allUris = new Set(allMessages.map(m => m.uri))
+  const orphanedRootFirstMsg = new Map<string, ChatMessage>()
+  const rootMessages: ChatMessage[] = []
+
+  for (const msg of allMessages) {
+    if (resolveAuthorDid(getAuthorityFromUri(msg.uri)) !== userDid) continue
+
+    if (!msg.value.root) {
+      rootMessages.push(msg)
+    } else if (!allUris.has(msg.value.root)) {
+      const existing = orphanedRootFirstMsg.get(msg.value.root)
+      if (!existing || new Date(msg.value.publishedAt) < new Date(existing.value.publishedAt)) {
+        orphanedRootFirstMsg.set(msg.value.root, msg)
+      }
+    }
+  }
+
+  for (const msg of orphanedRootFirstMsg.values()) {
+    rootMessages.push(msg)
+  }
+
+  if (rootMessages.length === 0) {
+    return '<div class="chat-container"><p class="no-posts">No chat threads yet.</p></div>'
+  }
+
+  // Sort by publishedAt (newest first)
+  const sorted = [...rootMessages].sort((a, b) =>
+    new Date(b.value.publishedAt).getTime() - new Date(a.value.publishedAt).getTime()
+  )
+
+  const items = sorted.map(msg => {
+    const authorDid = resolveAuthorDid(getAuthorityFromUri(msg.uri))
+    const time = formatChatTime(msg.value.publishedAt)
+    const rkey = getRkeyFromUri(msg.uri)
+    const author = authors.get(authorDid) || { did: authorDid, handle: authorDid.slice(0, 20) + '...' }
+    const collection = messageCollectionMap.get(msg.uri) || 'ai.syui.log.chat'
+    const slug = chatTypeSlug(collection)
+
+    const avatarHtml = author.avatarUrl
+      ? `<img class="chat-avatar" src="${author.avatarUrl}" alt="@${escapeHtml(author.handle)}">`
+      : `<div class="chat-avatar-placeholder"></div>`
+
+    const displayContent = getTranslatedContent(msg)
+    const lines = displayContent.split('\n').slice(0, 3)
+    const preview = lines.join('\n')
+
+    return `
+      <a href="/@${userHandle}/at/chat/${slug}/${rkey}" class="chat-thread-item">
+        <div class="chat-avatar-col">
+          ${avatarHtml}
+        </div>
+        <div class="chat-thread-content">
+          <div class="chat-thread-header">
+            <span class="chat-author">@${escapeHtml(author.handle)}</span>
+            <span class="chat-type-badge" data-type="${slug}">${slug}</span>
+            <span class="chat-time">${time}</span>
+          </div>
+          <div class="chat-thread-preview">${escapeHtml(preview)}</div>
+        </div>
+      </a>
+    `
+  }).join('')
+
+  return `<div class="chat-container"><div class="chat-thread-list">${items}</div></div>`
+}

src/web/components/chat-thread.ts

@@ -0,0 +1,143 @@
+import type { ChatMessage, Profile } from '../types'
+import { renderMarkdown } from '../lib/markdown'
+import { escapeHtml, formatDateTime, getRkeyFromUri, getAuthorityFromUri } from '../lib/util'
+import { buildAuthorMap, resolveAuthorDid, chatTypeSlug, getTranslatedContent } from './chat'
+
+const formatChatTime = formatDateTime
+
+// Render single chat thread (full conversation)
+export function renderChatThread(
+  messages: ChatMessage[],
+  rootRkey: string,
+  userDid: string,
+  userHandle: string,
+  botDid: string,
+  botHandle: string,
+  userProfile?: Profile | null,
+  botProfile?: Profile | null,
+  pds?: string,
+  chatCollection: string = 'ai.syui.log.chat',
+  loggedInDid?: string | null
+): string {
+  // Find root message
+  const rootUri = `at://${userDid}/${chatCollection}/${rootRkey}`
+  const rootMsg = messages.find(m => m.uri === rootUri)
+
+  if (!rootMsg) {
+    return '<p class="error">Chat thread not found.</p>'
+  }
+
+  // Find all messages in this thread
+  // 1. The root message itself
+  // 2. Messages with root === rootUri (direct children)
+  // 3. If this is an orphaned root (root points to non-existent), find siblings with same original root
+  const originalRoot = rootMsg.value.root
+  const allUris = new Set(messages.map(m => m.uri))
+  const isOrphanedRoot = originalRoot && !allUris.has(originalRoot)
+
+  const threadMessages = messages.filter(msg => {
+    // Include the root message itself
+    if (msg.uri === rootUri) return true
+    // Include messages that point to this as root
+    if (msg.value.root === rootUri) return true
+    // If orphaned, include messages with the same original root
+    if (isOrphanedRoot && msg.value.root === originalRoot) return true
+    return false
+  })
+
+  if (threadMessages.length === 0) {
+    return '<p class="error">No messages in this thread.</p>'
+  }
+
+  const authors = buildAuthorMap(userDid, userHandle, botDid, botHandle, userProfile, botProfile, pds)
+
+  // Sort by publishedAt
+  const sorted = [...threadMessages].sort((a, b) =>
+    new Date(a.value.publishedAt).getTime() - new Date(b.value.publishedAt).getTime()
+  )
+
+  const items = sorted.map(msg => {
+    const authorDid = resolveAuthorDid(getAuthorityFromUri(msg.uri))
+    const time = formatChatTime(msg.value.publishedAt)
+    const rkey = getRkeyFromUri(msg.uri)
+    const author = authors.get(authorDid) || { did: authorDid, handle: authorDid.slice(0, 20) + '...' }
+
+    const avatarHtml = author.avatarUrl
+      ? `<img class="chat-avatar" src="${author.avatarUrl}" alt="@${escapeHtml(author.handle)}">`
+      : `<div class="chat-avatar-placeholder"></div>`
+
+    const displayContent = getTranslatedContent(msg)
+    const content = renderMarkdown(displayContent)
+    const recordLink = `/@${author.handle}/at/collection/${chatCollection}/${rkey}`
+    const canEdit = loggedInDid && authorDid === loggedInDid
+    const editLink = `/@${userHandle}/at/chat/${chatTypeSlug(chatCollection)}/${rkey}/edit`
+
+    return `
+      <article class="chat-message">
+        <div class="chat-avatar-col">
+          ${avatarHtml}
+        </div>
+        <div class="chat-content-col">
+          <div class="chat-message-header">
+            <a href="/@${author.handle}" class="chat-author">@${escapeHtml(author.handle)}</a>
+            <a href="${recordLink}" class="chat-time">${time}</a>
+            ${canEdit ? `<a href="${editLink}" class="chat-edit-btn">edit</a>` : ''}
+          </div>
+          <div class="chat-content">${content}</div>
+        </div>
+      </article>
+    `
+  }).join('')
+
+  return `<div class="chat-list">${items}</div>`
+}
+
+// Render chat thread page
+export function renderChatThreadPage(
+  messages: ChatMessage[],
+  rootRkey: string,
+  userDid: string,
+  userHandle: string,
+  botDid: string,
+  botHandle: string,
+  userProfile?: Profile | null,
+  botProfile?: Profile | null,
+  pds?: string,
+  chatCollection: string = 'ai.syui.log.chat',
+  loggedInDid?: string | null
+): string {
+  const thread = renderChatThread(messages, rootRkey, userDid, userHandle, botDid, botHandle, userProfile, botProfile, pds, chatCollection, loggedInDid)
+  return `<div class="chat-container">${thread}</div>`
+}
+
+// Render chat edit form
+export function renderChatEditForm(
+  message: ChatMessage,
+  collection: string,
+  userHandle: string
+): string {
+  const rkey = message.uri.split('/').pop() || ''
+  const content = message.value.content.text
+
+  return `
+    <div class="chat-edit-container">
+      <h2>Edit Chat Message</h2>
+      <form class="chat-edit-form" id="chat-edit-form">
+        <textarea
+          class="chat-edit-content"
+          id="chat-edit-content"
+          rows="10"
+          required
+        >${escapeHtml(content)}</textarea>
+        <div class="chat-edit-footer">
+          <span class="chat-edit-collection">${collection}</span>
+          <div class="chat-edit-buttons">
+            <a href="/@${userHandle}/at/chat/${chatTypeSlug(collection)}/${rkey}" class="chat-edit-cancel">Cancel</a>
+            <button type="submit" class="chat-edit-save" id="chat-edit-save" data-rkey="${rkey}">Save</button>
+          </div>
+        </div>
+      </form>
+      <div id="chat-edit-status" class="chat-edit-status"></div>
+    </div>
+  `
+}

src/web/components/chat.ts

@@ -1,65 +1,28 @@
 import type { ChatMessage, Profile } from '../types'
-import { renderMarkdown } from '../lib/markdown'
+import { getTranslatedContent as getTranslation } from '../lib/util'
-import { getCurrentLang } from './mode-tabs'
-
-// Get translated content for a chat message
-function getTranslatedContent(msg: ChatMessage): string {
-  const currentLang = getCurrentLang()
-  const originalLang = msg.value.langs?.[0] || 'ja'
-  const translations = msg.value.translations
-
-  if (translations && currentLang !== originalLang && translations[currentLang]) {
-    const translated = translations[currentLang].content
-    if (typeof translated === 'string') return translated
-    if (translated && typeof translated === 'object' && 'text' in translated) return (translated as { text: string }).text
-    return msg.value.content.text
-  }
-  return msg.value.content.text
-}
-
-// Escape HTML to prevent XSS
-function escapeHtml(text: string): string {
-  const div = document.createElement('div')
-  div.textContent = text
-  return div.innerHTML
-}
-
-// Format date/time for chat
-function formatChatTime(dateStr: string): string {
-  const d = new Date(dateStr)
-  const month = String(d.getMonth() + 1).padStart(2, '0')
-  const day = String(d.getDate()).padStart(2, '0')
-  const hour = String(d.getHours()).padStart(2, '0')
-  const min = String(d.getMinutes()).padStart(2, '0')
-  return `${month}/${day} ${hour}:${min}`
-}
-
-// Extract rkey from AT URI
-function getRkeyFromUri(uri: string): string {
-  return uri.split('/').pop() || ''
-}
-
-// Extract authority from AT URI (at://did:plc:xxx/collection/rkey → did:plc:xxx)
-function getAuthorityFromUri(uri: string): string {
-  return uri.replace('at://', '').split('/')[0]
-}
 
 // Profile info for authors
-interface AuthorInfo {
+export interface AuthorInfo {
   did: string
   handle: string
   avatarUrl?: string
 }
 
+// Chat collection entry for unified list
+export interface ChatCollectionEntry {
+  collection: string
+  messages: ChatMessage[]
+}
+
 // Handle/DID resolver: maps both handle and DID to DID
 let handleToDidMap = new Map<string, string>()
 
-function resolveAuthorDid(authority: string): string {
+export function resolveAuthorDid(authority: string): string {
   return handleToDidMap.get(authority) || authority
 }
 
 // Build author info map
-function buildAuthorMap(
+export function buildAuthorMap(
   userDid: string,
   userHandle: string,
   botDid: string,
@@ -97,330 +60,17 @@ function buildAuthorMap(
 }
 
 // Map collection name to chat type slug
-function chatTypeSlug(chatCollection: string): string {
+export function chatTypeSlug(chatCollection: string): string {
   if (chatCollection === 'ai.syui.ue.chat') return 'ue'
   return 'log'
 }
 
-// Render chat threads list (conversations this user started)
+// Get translated content for a chat message
-export function renderChatThreadList(
+export function getTranslatedContent(msg: ChatMessage): string {
-  messages: ChatMessage[],
+  const originalLang = msg.value.langs?.[0] || 'ja'
-  userDid: string,
+  return getTranslation(msg.value.content.text, msg.value.translations, originalLang)
-  userHandle: string,
-  botDid: string,
-  botHandle: string,
-  userProfile?: Profile | null,
-  botProfile?: Profile | null,
-  pds?: string,
-  chatCollection: string = 'ai.syui.log.chat'
-): string {
-  // Build set of all message URIs
-  const allUris = new Set(messages.map(m => m.uri))
-
-  // Find root messages by this user:
-  // 1. No root field (explicit start of conversation)
-  // 2. Or root points to non-existent message (orphaned, treat as root)
-  //    For orphaned roots, only keep the oldest message per orphaned root URI
-  const orphanedRootFirstMsg = new Map<string, ChatMessage>()
-  const rootMessages: ChatMessage[] = []
-
-  for (const msg of messages) {
-    if (resolveAuthorDid(getAuthorityFromUri(msg.uri)) !== userDid) continue
-
-    if (!msg.value.root) {
-      // No root = explicit conversation start
-      rootMessages.push(msg)
-    } else if (!allUris.has(msg.value.root)) {
-      // Orphaned root - keep only the oldest message per orphaned root
-      const existing = orphanedRootFirstMsg.get(msg.value.root)
-      if (!existing || new Date(msg.value.publishedAt) < new Date(existing.value.publishedAt)) {
-        orphanedRootFirstMsg.set(msg.value.root, msg)
-      }
-    }
-  }
-
-  // Add orphaned root representatives
-  for (const msg of orphanedRootFirstMsg.values()) {
-    rootMessages.push(msg)
-  }
-
-  if (rootMessages.length === 0) {
-    return '<p class="no-posts">No chat threads yet.</p>'
-  }
-
-  const authors = buildAuthorMap(userDid, userHandle, botDid, botHandle, userProfile, botProfile, pds)
-
-  // Sort by publishedAt (newest first)
-  const sorted = [...rootMessages].sort((a, b) =>
-    new Date(b.value.publishedAt).getTime() - new Date(a.value.publishedAt).getTime()
-  )
-
-  const items = sorted.map(msg => {
-    const authorDid = resolveAuthorDid(getAuthorityFromUri(msg.uri))
-    const time = formatChatTime(msg.value.publishedAt)
-    const rkey = getRkeyFromUri(msg.uri)
-    const author = authors.get(authorDid) || { did: authorDid, handle: authorDid.slice(0, 20) + '...' }
-
-    const avatarHtml = author.avatarUrl
-      ? `<img class="chat-avatar" src="${author.avatarUrl}" alt="@${escapeHtml(author.handle)}">`
-      : `<div class="chat-avatar-placeholder"></div>`
-
-    // Truncate content for preview (use translated content, show first 3 lines)
-    const displayContent = getTranslatedContent(msg)
-    const lines = displayContent.split('\n').slice(0, 3)
-    const preview = lines.join('\n')
-
-    return `
-      <a href="/@${userHandle}/at/chat/${chatTypeSlug(chatCollection)}/${rkey}" class="chat-thread-item">
-        <div class="chat-avatar-col">
-          ${avatarHtml}
-        </div>
-        <div class="chat-thread-content">
-          <div class="chat-thread-header">
-            <span class="chat-author">@${escapeHtml(author.handle)}</span>
-            <span class="chat-type-badge" data-type="${chatTypeSlug(chatCollection)}">${chatTypeSlug(chatCollection)}</span>
-            <span class="chat-time">${time}</span>
-          </div>
-          <div class="chat-thread-preview">${escapeHtml(preview)}</div>
-        </div>
-      </a>
-    `
-  }).join('')
-
-  return `<div class="chat-thread-list">${items}</div>`
 }
 
-// Render single chat thread (full conversation)
+// Re-export from split modules
-export function renderChatThread(
+export { renderChatThreadList, renderChatListPage } from './chat-list'
-  messages: ChatMessage[],
+export { renderChatThread, renderChatThreadPage, renderChatEditForm } from './chat-thread'
-  rootRkey: string,
-  userDid: string,
-  userHandle: string,
-  botDid: string,
-  botHandle: string,
-  userProfile?: Profile | null,
-  botProfile?: Profile | null,
-  pds?: string,
-  chatCollection: string = 'ai.syui.log.chat',
-  loggedInDid?: string | null
-): string {
-  // Find root message
-  const rootUri = `at://${userDid}/${chatCollection}/${rootRkey}`
-  const rootMsg = messages.find(m => m.uri === rootUri)
-
-  if (!rootMsg) {
-    return '<p class="error">Chat thread not found.</p>'
-  }
-
-  // Find all messages in this thread
-  // 1. The root message itself
-  // 2. Messages with root === rootUri (direct children)
-  // 3. If this is an orphaned root (root points to non-existent), find siblings with same original root
-  const originalRoot = rootMsg.value.root
-  const allUris = new Set(messages.map(m => m.uri))
-  const isOrphanedRoot = originalRoot && !allUris.has(originalRoot)
-
-  const threadMessages = messages.filter(msg => {
-    // Include the root message itself
-    if (msg.uri === rootUri) return true
-    // Include messages that point to this as root
-    if (msg.value.root === rootUri) return true
-    // If orphaned, include messages with the same original root
-    if (isOrphanedRoot && msg.value.root === originalRoot) return true
-    return false
-  })
-
-  if (threadMessages.length === 0) {
-    return '<p class="error">No messages in this thread.</p>'
-  }
-
-  const authors = buildAuthorMap(userDid, userHandle, botDid, botHandle, userProfile, botProfile, pds)
-
-  // Sort by publishedAt
-  const sorted = [...threadMessages].sort((a, b) =>
-    new Date(a.value.publishedAt).getTime() - new Date(b.value.publishedAt).getTime()
-  )
-
-  const items = sorted.map(msg => {
-    const authorDid = resolveAuthorDid(getAuthorityFromUri(msg.uri))
-    const time = formatChatTime(msg.value.publishedAt)
-    const rkey = getRkeyFromUri(msg.uri)
-    const author = authors.get(authorDid) || { did: authorDid, handle: authorDid.slice(0, 20) + '...' }
-
-    const avatarHtml = author.avatarUrl
-      ? `<img class="chat-avatar" src="${author.avatarUrl}" alt="@${escapeHtml(author.handle)}">`
-      : `<div class="chat-avatar-placeholder"></div>`
-
-    const displayContent = getTranslatedContent(msg)
-    const content = renderMarkdown(displayContent)
-    const recordLink = `/@${author.handle}/at/collection/${chatCollection}/${rkey}`
-    const canEdit = loggedInDid && authorDid === loggedInDid
-    const editLink = `/@${userHandle}/at/chat/${chatTypeSlug(chatCollection)}/${rkey}/edit`
-
-    return `
-      <article class="chat-message">
-        <div class="chat-avatar-col">
-          ${avatarHtml}
-        </div>
-        <div class="chat-content-col">
-          <div class="chat-message-header">
-            <a href="/@${author.handle}" class="chat-author">@${escapeHtml(author.handle)}</a>
-            <a href="${recordLink}" class="chat-time">${time}</a>
-            ${canEdit ? `<a href="${editLink}" class="chat-edit-btn">edit</a>` : ''}
-          </div>
-          <div class="chat-content">${content}</div>
-        </div>
-      </article>
-    `
-  }).join('')
-
-  return `<div class="chat-list">${items}</div>`
-}
-
-// Chat collection entry for unified list
-export interface ChatCollectionEntry {
-  collection: string
-  messages: ChatMessage[]
-}
-
-// Render unified chat list page with filter buttons
-export function renderChatListPage(
-  collections: ChatCollectionEntry[],
-  userDid: string,
-  userHandle: string,
-  botDid: string,
-  botHandle: string,
-  userProfile?: Profile | null,
-  botProfile?: Profile | null,
-  pds?: string
-): string {
-  // Merge all collections into a single list
-  const allMessages: ChatMessage[] = []
-  const messageCollectionMap = new Map<string, string>()
-
-  for (const c of collections) {
-    for (const msg of c.messages) {
-      allMessages.push(msg)
-      messageCollectionMap.set(msg.uri, c.collection)
-    }
-  }
-
-  // Build author map with first collection's params (all share same users)
-  const authors = buildAuthorMap(userDid, userHandle, botDid, botHandle, userProfile, botProfile, pds)
-
-  // Find root messages (same logic as renderChatThreadList)
-  const allUris = new Set(allMessages.map(m => m.uri))
-  const orphanedRootFirstMsg = new Map<string, ChatMessage>()
-  const rootMessages: ChatMessage[] = []
-
-  for (const msg of allMessages) {
-    if (resolveAuthorDid(getAuthorityFromUri(msg.uri)) !== userDid) continue
-
-    if (!msg.value.root) {
-      rootMessages.push(msg)
-    } else if (!allUris.has(msg.value.root)) {
-      const existing = orphanedRootFirstMsg.get(msg.value.root)
-      if (!existing || new Date(msg.value.publishedAt) < new Date(existing.value.publishedAt)) {
-        orphanedRootFirstMsg.set(msg.value.root, msg)
-      }
-    }
-  }
-
-  for (const msg of orphanedRootFirstMsg.values()) {
-    rootMessages.push(msg)
-  }
-
-  if (rootMessages.length === 0) {
-    return '<div class="chat-container"><p class="no-posts">No chat threads yet.</p></div>'
-  }
-
-  // Sort by publishedAt (newest first)
-  const sorted = [...rootMessages].sort((a, b) =>
-    new Date(b.value.publishedAt).getTime() - new Date(a.value.publishedAt).getTime()
-  )
-
-  const items = sorted.map(msg => {
-    const authorDid = resolveAuthorDid(getAuthorityFromUri(msg.uri))
-    const time = formatChatTime(msg.value.publishedAt)
-    const rkey = getRkeyFromUri(msg.uri)
-    const author = authors.get(authorDid) || { did: authorDid, handle: authorDid.slice(0, 20) + '...' }
-    const collection = messageCollectionMap.get(msg.uri) || 'ai.syui.log.chat'
-    const slug = chatTypeSlug(collection)
-
-    const avatarHtml = author.avatarUrl
-      ? `<img class="chat-avatar" src="${author.avatarUrl}" alt="@${escapeHtml(author.handle)}">`
-      : `<div class="chat-avatar-placeholder"></div>`
-
-    const displayContent = getTranslatedContent(msg)
-    const lines = displayContent.split('\n').slice(0, 3)
-    const preview = lines.join('\n')
-
-    return `
-      <a href="/@${userHandle}/at/chat/${slug}/${rkey}" class="chat-thread-item">
-        <div class="chat-avatar-col">
-          ${avatarHtml}
-        </div>
-        <div class="chat-thread-content">
-          <div class="chat-thread-header">
-            <span class="chat-author">@${escapeHtml(author.handle)}</span>
-            <span class="chat-type-badge" data-type="${slug}">${slug}</span>
-            <span class="chat-time">${time}</span>
-          </div>
-          <div class="chat-thread-preview">${escapeHtml(preview)}</div>
-        </div>
-      </a>
-    `
-  }).join('')
-
-  return `<div class="chat-container"><div class="chat-thread-list">${items}</div></div>`
-}
-
-// Render chat thread page
-export function renderChatThreadPage(
-  messages: ChatMessage[],
-  rootRkey: string,
-  userDid: string,
-  userHandle: string,
-  botDid: string,
-  botHandle: string,
-  userProfile?: Profile | null,
-  botProfile?: Profile | null,
-  pds?: string,
-  chatCollection: string = 'ai.syui.log.chat',
-  loggedInDid?: string | null
-): string {
-  const thread = renderChatThread(messages, rootRkey, userDid, userHandle, botDid, botHandle, userProfile, botProfile, pds, chatCollection, loggedInDid)
-  return `<div class="chat-container">${thread}</div>`
-}
-
-// Render chat edit form
-export function renderChatEditForm(
-  message: ChatMessage,
-  collection: string,
-  userHandle: string
-): string {
-  const rkey = message.uri.split('/').pop() || ''
-  const content = message.value.content.text
-
-  return `
-    <div class="chat-edit-container">
-      <h2>Edit Chat Message</h2>
-      <form class="chat-edit-form" id="chat-edit-form">
-        <textarea
-          class="chat-edit-content"
-          id="chat-edit-content"
-          rows="10"
-          required
-        >${escapeHtml(content)}</textarea>
-        <div class="chat-edit-footer">
-          <span class="chat-edit-collection">${collection}</span>
-          <div class="chat-edit-buttons">
-            <a href="/@${userHandle}/at/chat/${chatTypeSlug(collection)}/${rkey}" class="chat-edit-cancel">Cancel</a>
-            <button type="submit" class="chat-edit-save" id="chat-edit-save" data-rkey="${rkey}">Save</button>
-          </div>
-        </div>
-      </form>
-      <div id="chat-edit-status" class="chat-edit-status"></div>
-    </div>
-  `
-}

src/web/components/discussion.ts

@@ -1,24 +1,8 @@
 import { searchPostsForUrl, getCurrentNetwork, type SearchPost } from '../lib/api'
+import { escapeHtml, formatDateJa } from '../lib/util'
 
 const DISCUSSION_POST_LIMIT = 10
 
-function escapeHtml(str: string): string {
-  return str
-    .replace(/&/g, '&')
-    .replace(/</g, '&lt;')
-    .replace(/>/g, '&gt;')
-    .replace(/"/g, '&quot;')
-}
-
-function formatDate(dateStr: string): string {
-  const date = new Date(dateStr)
-  return date.toLocaleDateString('ja-JP', {
-    year: 'numeric',
-    month: '2-digit',
-    day: '2-digit',
-  })
-}
-
 function getPostUrl(uri: string, appUrl: string): string {
   // at://did:plc:xxx/app.bsky.feed.post/rkey -> {appUrl}/profile/did:plc:xxx/post/rkey
   const parts = uri.replace('at://', '').split('/')
@@ -100,7 +84,7 @@ export async function loadDiscussionPosts(container: HTMLElement, postUrl: strin
             <span class="discussion-name">${escapeHtml(displayName)}</span>
             <span class="discussion-handle">@${escapeHtml(handle)}</span>
           </div>
-          <span class="discussion-date">${formatDate(createdAt)}</span>
+          <span class="discussion-date">${formatDateJa(createdAt)}</span>
         </div>
         <div class="discussion-text">${escapeHtml(truncatedText)}</div>
       </a>

src/web/components/mode-tabs.ts

@@ -33,12 +33,11 @@ export function renderModeTabs(handle: string, activeTab: 'blog' | 'browser' | '
     tabs += `<a href="/@${handle}/at/chat" class="tab ${activeTab === 'chat' ? 'active' : ''}">chat</a>`
   }
 
-  // Note tab only for local user (admin) with note posts
-  if (isLocalUser && hasNotes) {
-    tabs += `<a href="/@${handle}/at/note" class="tab ${activeTab === 'note' ? 'active' : ''}">note</a>`
-  }
-
   if (isLoggedIn()) {
+    // Note tab only for logged-in admin with note posts
+    if (isLocalUser && hasNotes) {
+      tabs += `<a href="/@${handle}/at/note" class="tab ${activeTab === 'note' ? 'active' : ''}">note</a>`
+    }
     tabs += `<a href="/@${handle}/at/post" class="tab ${activeTab === 'post' ? 'active' : ''}">post</a>`
     tabs += `<a href="/@${handle}/at/link" class="tab ${activeTab === 'link' ? 'active' : ''}">link</a>`
   }

src/web/components/note.ts

@@ -1,5 +1,6 @@
 import { renderMarkdown } from '../lib/markdown'
 import type { Post } from '../types'
+import { escapeHtml, escapeAttr, formatDateJa } from '../lib/util'
 
 // Note post has extra fields for member content
 interface NotePost extends Post {
@@ -42,12 +43,10 @@ export function renderNoteListPage(posts: NotePost[], handle: string): string {
 export function renderNoteDetailPage(
   post: NotePost,
   _handle: string,
-  localOnly: boolean
+  isOwner: boolean
 ): string {
   const rkey = post.uri.split('/').pop() || ''
-  const date = new Date(post.value.publishedAt).toLocaleDateString('ja-JP', {
+  const date = formatDateJa(post.value.publishedAt)
-    year: 'numeric', month: '2-digit', day: '2-digit'
-  })
   const freeText = post.value.content?.text || ''
   const memberText = post.value.member?.text || ''
   const bonusText = post.value.member?.bonus || ''
@@ -59,7 +58,7 @@ export function renderNoteDetailPage(
   let html = ''
 
   // Action buttons at top
-  if (localOnly) {
+  if (isOwner) {
     html += `
       <div class="note-actions">
         <button type="button" class="note-copy-btn" id="note-copy-title">Copy Title</button>
@@ -103,7 +102,7 @@ export function renderNoteDetailPage(
   html += `</div>`
 
   // Edit form (below content)
-  if (localOnly) {
+  if (isOwner) {
     html += `
       <div class="note-edit" id="note-edit-form" style="display:none">
         <input type="text" id="note-edit-title" class="note-edit-input" value="${escapeAttr(post.value.title)}" placeholder="Title">
@@ -223,10 +222,3 @@ export function setupNoteDetail(
   })
 }
 
-function escapeHtml(s: string): string {
-  return s.replace(/&/g, '&amp;').replace(/</g, '&lt;').replace(/>/g, '&gt;').replace(/"/g, '&quot;')
-}
-
-function escapeAttr(s: string): string {
-  return s.replace(/&/g, '&amp;').replace(/"/g, '&quot;').replace(/</g, '&lt;').replace(/>/g, '&gt;')
-}

src/web/components/posts.ts

@@ -1,7 +1,7 @@
 import type { Post } from '../types'
 import { renderMarkdown } from '../lib/markdown'
 import { renderDiscussion, loadDiscussionPosts } from './discussion'
-import { getCurrentLang } from './mode-tabs'
+import { escapeHtml, formatDate, getLang } from '../lib/util'
 
 // Extract text content from post content (handles both string and object formats)
 function getContentText(content: unknown): string {
@@ -14,22 +14,13 @@ function getContentText(content: unknown): string {
   return ''
 }
 
-// Format date as yyyy/mm/dd
-function formatDate(dateStr: string): string {
-  const d = new Date(dateStr)
-  const year = d.getFullYear()
-  const month = String(d.getMonth() + 1).padStart(2, '0')
-  const day = String(d.getDate()).padStart(2, '0')
-  return `${year}/${month}/${day}`
-}
-
 // Render post list
 export function renderPostList(posts: Post[], handle: string): string {
   if (posts.length === 0) {
     return '<p class="no-posts">No posts yet.</p>'
   }
 
-  const currentLang = getCurrentLang()
+  const currentLang = getLang()
 
   const items = posts.map(post => {
     const rkey = post.uri.split('/').pop() || ''
@@ -77,7 +68,7 @@ export function renderPostDetail(
   const editBtn = isOwner ? `<button type="button" class="post-edit-btn" id="post-edit-btn">Edit</button>` : ''
 
   // Get current language and show appropriate content
-  const currentLang = getCurrentLang()
+  const currentLang = getLang()
   const translations = post.value.translations
   const originalLang = post.value.langs?.[0] || 'ja'
 
@@ -144,11 +135,3 @@ export function mountPostDetail(container: HTMLElement, html: string): void {
   container.innerHTML = html
 }
 
-function escapeHtml(text: string): string {
-  return text
-    .replace(/&/g, '&amp;')
-    .replace(/</g, '&lt;')
-    .replace(/>/g, '&gt;')
-    .replace(/"/g, '&quot;')
-    .replace(/'/g, '&#039;')
-}

src/web/components/profile.ts

@@ -1,5 +1,6 @@
 import type { Profile } from '../types'
 import { getAvatarUrl, getAvatarUrlRemote } from '../lib/api'
+import { escapeHtml } from '../lib/util'
 
 // Service definitions for profile icons
 export interface ServiceLink {
@@ -122,11 +123,3 @@ export function mountProfile(container: HTMLElement, html: string): void {
   container.innerHTML = html
 }
 
-function escapeHtml(text: string): string {
-  return text
-    .replace(/&/g, '&')
-    .replace(/</g, '&lt;')
-    .replace(/>/g, '&gt;')
-    .replace(/"/g, '&quot;')
-    .replace(/'/g, '&#039;')
-}

src/web/components/rse.ts

@@ -1,5 +1,6 @@
 // RSE display component for ai.syui.rse.user collection
 import { renderCard, type UserCard, type CardAdminEntry, type CardAdminData } from './card'
+import { getLocalizedText } from '../lib/util'
 
 export interface RseAdminItem {
   id: number
@@ -25,18 +26,6 @@ export interface RseCollection {
   updatedAt: string
 }
 
-// Get current language
-function getLang(): string {
-  return localStorage.getItem('preferredLang') || 'ja'
-}
-
-// Get localized text
-function getLocalizedText(obj: { ja: string; en: string } | undefined): string {
-  if (!obj) return ''
-  const lang = getLang()
-  return obj[lang as 'ja' | 'en'] || obj.ja || obj.en || ''
-}
-
 // Get rarity class from unique flag
 function getRarityClass(item: RseItem): string {
   if (item.unique) return 'unique'

src/web/lib/api.ts

@@ -17,6 +17,7 @@ async function fetchWithTimeout(url: string, options: RequestInit = {}, timeout
 // Cache
 let configCache: AppConfig | null = null
 let networksCache: Networks | null = null
+const pdsCache = new Map<string, string | null>()
 
 // Load config.json
 export async function getConfig(): Promise<AppConfig> {
@@ -55,8 +56,10 @@ export async function resolveHandle(handle: string): Promise<string | null> {
   return null
 }
 
-// Get PDS endpoint for DID (try all networks)
+// Get PDS endpoint for DID (try all networks, cached)
 export async function getPds(did: string): Promise<string | null> {
+  if (pdsCache.has(did)) return pdsCache.get(did)!
+
   const networks = await getNetworks()
 
   for (const network of Object.values(networks)) {
@@ -66,6 +69,7 @@ export async function getPds(did: string): Promise<string | null> {
         const didDoc = await res.json()
         const service = didDoc.service?.find((s: { type: string }) => s.type === 'AtprotoPersonalDataServer')
         if (service?.serviceEndpoint) {
+          pdsCache.set(did, service.serviceEndpoint)
           return service.serviceEndpoint
         }
       }
@@ -73,6 +77,7 @@ export async function getPds(did: string): Promise<string | null> {
       // Try next network (timeout or error)
     }
   }
+  pdsCache.set(did, null)
   return null
 }
 
@@ -82,39 +87,62 @@ function isJsonResponse(res: Response): boolean {
   return contentType?.includes('application/json') ?? false
 }
 
-// Load local profile
+// Generic local-then-remote fetch helper
-async function getLocalProfile(did: string): Promise<Profile | null> {
+async function fetchLocalThenRemote<T>(
+  did: string,
+  localPath: string,
+  remoteFetcher: (pds: string) => Promise<T | null>,
+  localOnly: boolean,
+  defaultValue: T | null,
+  localTransform?: (data: unknown) => T | null
+): Promise<T | null> {
   try {
-    const res = await fetch(`/at/${did}/app.bsky.actor.profile/self.json`)
+    const res = await fetch(localPath)
-    if (res.ok && isJsonResponse(res)) return res.json()
+    if (res.ok && isJsonResponse(res)) {
-  } catch {
+      const data = await res.json()
-    // Not found
+      return localTransform ? localTransform(data) : data as T
+    }
+  } catch { /* Not found */ }
+
+  if (localOnly) return defaultValue
+
+  const pds = await getPds(did)
+  if (!pds) return defaultValue
+
+  try {
+    return await remoteFetcher(pds)
+  } catch { /* Failed */ }
+  return defaultValue
+}
+
+// Helper to build a remote getRecord fetcher
+function remoteGetRecord<T>(
+  did: string,
+  collection: string,
+  rkey: string,
+  transform?: (data: unknown) => T
+): (pds: string) => Promise<T | null> {
+  return async (pds: string) => {
+    const host = pds.replace('https://', '')
+    const url = `${xrpcUrl(host, comAtprotoRepo.getRecord)}?repo=${did}&collection=${collection}&rkey=${rkey}`
+    const res = await fetchWithTimeout(url, {}, 8000)
+    if (res.ok) {
+      const data = await res.json()
+      return transform ? transform(data) : data as T
+    }
+    return null
   }
-  return null
 }
 
 // Load profile (local only for admin, remote for others)
 export async function getProfile(did: string, localOnly = false): Promise<Profile | null> {
-  // Try local first
+  return fetchLocalThenRemote<Profile>(
-  const local = await getLocalProfile(did)
+    did,
-  if (local) return local
+    `/at/${did}/app.bsky.actor.profile/self.json`,
-
+    remoteGetRecord(did, 'app.bsky.actor.profile', 'self'),
-  // If local only mode, don't call API
+    localOnly,
-  if (localOnly) return null
+    null
-
+  )
-  // Remote fallback
-  const pds = await getPds(did)
-  if (!pds) return null
-
-  try {
-    const host = pds.replace('https://', '')
-    const url = `${xrpcUrl(host, comAtprotoRepo.getRecord)}?repo=${did}&collection=app.bsky.actor.profile&rkey=self`
-    const res = await fetchWithTimeout(url, {}, 8000)
-    if (res.ok) return res.json()
-  } catch {
-    // Failed or timeout
-  }
-  return null
 }
 
 // Get avatar URL (local only for admin, remote for others)
@@ -144,6 +172,18 @@ export async function getAvatarUrlRemote(did: string, profile: Profile): Promise
 
 // Load local posts
 async function getLocalPosts(did: string, collection: string): Promise<Post[]> {
+  // Try list.json first (single request)
+  try {
+    const listRes = await fetch(`/at/${did}/${collection}/list.json`)
+    if (listRes.ok && isJsonResponse(listRes)) {
+      const posts: Post[] = await listRes.json()
+      return posts.sort((a, b) =>
+        new Date(b.value.publishedAt).getTime() - new Date(a.value.publishedAt).getTime()
+      )
+    }
+  } catch { /* fallback */ }
+
+  // Fallback: index.json + individual files
   try {
     const indexRes = await fetch(`/at/${did}/${collection}/index.json`)
     if (indexRes.ok && isJsonResponse(indexRes)) {
@@ -160,98 +200,67 @@ async function getLocalPosts(did: string, collection: string): Promise<Post[]> {
         new Date(b.value.publishedAt).getTime() - new Date(a.value.publishedAt).getTime()
       )
     }
-  } catch {
+  } catch { /* not found */ }
-    // Not found
-  }
   return []
 }
 
 // Load posts (local only for admin, remote for others)
 export async function getPosts(did: string, collection: string, localOnly = false): Promise<Post[]> {
-  // Try local first
+  // Try local first (uses special index.json + Promise.all logic)
   const local = await getLocalPosts(did, collection)
   if (local.length > 0) return local
 
-  // If local only mode, don't call API
   if (localOnly) return []
 
-  // Remote fallback
   const pds = await getPds(did)
   if (!pds) return []
 
   try {
     const host = pds.replace('https://', '')
     const url = `${xrpcUrl(host, comAtprotoRepo.listRecords)}?repo=${did}&collection=${collection}&limit=100`
-    const res = await fetch(url)
+    const res = await fetchWithTimeout(url, {}, 8000)
     if (res.ok) {
       const data: ListRecordsResponse<Post> = await res.json()
       return data.records.sort((a, b) =>
         new Date(b.value.publishedAt).getTime() - new Date(a.value.publishedAt).getTime()
       )
     }
-  } catch {
+  } catch { /* Failed */ }
-    // Failed
-  }
   return []
 }
 
 // Get single post (local only for admin, remote for others)
 export async function getPost(did: string, collection: string, rkey: string, localOnly = false): Promise<Post | null> {
-  // Try local first
+  return fetchLocalThenRemote<Post>(
-  try {
+    did,
-    const res = await fetch(`/at/${did}/${collection}/${rkey}.json`)
+    `/at/${did}/${collection}/${rkey}.json`,
-    if (res.ok && isJsonResponse(res)) return res.json()
+    remoteGetRecord(did, collection, rkey),
-  } catch {
+    localOnly,
-    // Not found
+    null
-  }
+  )
-
-  // If local only mode, don't call API
-  if (localOnly) return null
-
-  // Remote fallback
-  const pds = await getPds(did)
-  if (!pds) return null
-
-  try {
-    const host = pds.replace('https://', '')
-    const url = `${xrpcUrl(host, comAtprotoRepo.getRecord)}?repo=${did}&collection=${collection}&rkey=${rkey}`
-    const res = await fetch(url)
-    if (res.ok) return res.json()
-  } catch {
-    // Failed
-  }
-  return null
 }
 
 // Describe repo - get collections list
 export async function describeRepo(did: string): Promise<string[]> {
-  // Try local first
+  const extractCollections = (data: unknown) => ((data as { collections?: string[] }).collections || []) as unknown as string[]
-  try {
+  const result = await fetchLocalThenRemote<string[]>(
-    const res = await fetch(`/at/${did}/describe.json`)
+    did,
-    if (res.ok && isJsonResponse(res)) {
+    `/at/${did}/describe.json`,
-      const data = await res.json()
+    async (pds: string) => {
-      return data.collections || []
+      const host = pds.replace('https://', '')
-    }
+      const url = `${xrpcUrl(host, comAtprotoRepo.describeRepo)}?repo=${did}`
-  } catch {
+      const res = await fetchWithTimeout(url, {}, 8000)
-    // Not found
+      if (res.ok) {
-  }
+        const data = await res.json()
-
+        return data.collections || []
-  // Remote
+      }
-  const pds = await getPds(did)
+      return null
-  if (!pds) return []
+    },
-
+    false,
-  try {
+    null,
-    const host = pds.replace('https://', '')
+    extractCollections
-    const url = `${xrpcUrl(host, comAtprotoRepo.describeRepo)}?repo=${did}`
+  )
-    const res = await fetchWithTimeout(url, {}, 8000)
+  return result || []
-    if (res.ok) {
-      const data = await res.json()
-      return data.collections || []
-    }
-  } catch {
-    // Failed or timeout
-  }
-  return []
 }
 
 // List records from any collection
@@ -393,25 +402,31 @@ export async function getChatMessages(
 ): Promise<ChatMessage[]> {
   // Load messages for a single DID
   async function loadForDid(did: string): Promise<ChatMessage[]> {
-    // Try local first
+    // Try local list.json first (single request for all records)
+    try {
+      const res = await fetch(`/at/${did}/${collection}/list.json`)
+      if (res.ok && isJsonResponse(res)) {
+        return (await res.json()) as ChatMessage[]
+      }
+    } catch { /* fallback */ }
+
+    // Try local index.json + individual files
     try {
       const res = await fetch(`/at/${did}/${collection}/index.json`)
       if (res.ok && isJsonResponse(res)) {
         const rkeys: string[] = await res.json()
-        // Load all messages in parallel
+        const results = await Promise.all(
-        const msgPromises = rkeys.map(async (rkey) => {
+          rkeys.map(async (rkey) => {
-          const msgRes = await fetch(`/at/${did}/${collection}/${rkey}.json`)
+            const msgRes = await fetch(`/at/${did}/${collection}/${rkey}.json`)
-          if (msgRes.ok && isJsonResponse(msgRes)) {
+            if (msgRes.ok && isJsonResponse(msgRes)) {
-            return msgRes.json() as Promise<ChatMessage>
+              return msgRes.json() as Promise<ChatMessage>
-          }
+            }
-          return null
+            return null
-        })
+          })
-        const results = await Promise.all(msgPromises)
+        )
         return results.filter((m): m is ChatMessage => m !== null)
       }
-    } catch {
+    } catch { /* try remote */ }
-      // Try remote
-    }
 
     // Remote fallback
     const pds = await getPds(did)
@@ -420,14 +435,12 @@ export async function getChatMessages(
     try {
       const host = pds.replace('https://', '')
       const url = `${xrpcUrl(host, comAtprotoRepo.listRecords)}?repo=${did}&collection=${collection}&limit=100`
-      const res = await fetch(url)
+      const res = await fetchWithTimeout(url, {}, 8000)
       if (res.ok) {
         const data: ListRecordsResponse<ChatMessage> = await res.json()
         return data.records
       }
-    } catch {
+    } catch { /* failed */ }
-      // Failed
-    }
     return []
   }
 
@@ -591,33 +604,15 @@ export async function getCards(
   did: string,
   collection: string = 'ai.syui.card.user'
 ): Promise<CardCollection | null> {
-  // Try local first
+  const extractValue = (data: unknown) => (data as { value: CardCollection }).value
-  try {
+  return fetchLocalThenRemote<CardCollection>(
-    const res = await fetch(`/at/${did}/${collection}/self.json`)
+    did,
-    if (res.ok && isJsonResponse(res)) {
+    `/at/${did}/${collection}/self.json`,
-      const record = await res.json()
+    remoteGetRecord(did, collection, 'self', extractValue),
-      return record.value as CardCollection
+    false,
-    }
+    null,
-  } catch {
+    extractValue
-    // Try remote
+  )
-  }
-
-  // Remote fallback
-  const pds = await getPds(did)
-  if (!pds) return null
-
-  try {
-    const host = pds.replace('https://', '')
-    const url = `${xrpcUrl(host, comAtprotoRepo.getRecord)}?repo=${did}&collection=${collection}&rkey=self`
-    const res = await fetch(url)
-    if (res.ok) {
-      const record = await res.json()
-      return record.value as CardCollection
-    }
-  } catch {
-    // Failed
-  }
-  return null
 }
 
 // RSE collection type
@@ -639,34 +634,15 @@ export interface RseCollection {
 // Get user's RSE collection (ai.syui.rse.user)
 export async function getRse(did: string): Promise<RseCollection | null> {
   const collection = 'ai.syui.rse.user'
-
+  const extractValue = (data: unknown) => (data as { value: RseCollection }).value
-  // Try local first
+  return fetchLocalThenRemote<RseCollection>(
-  try {
+    did,
-    const res = await fetch(`/at/${did}/${collection}/self.json`)
+    `/at/${did}/${collection}/self.json`,
-    if (res.ok && isJsonResponse(res)) {
+    remoteGetRecord(did, collection, 'self', extractValue),
-      const record = await res.json()
+    false,
-      return record.value as RseCollection
+    null,
-    }
+    extractValue
-  } catch {
+  )
-    // Try remote
-  }
-
-  // Remote fallback
-  const pds = await getPds(did)
-  if (!pds) return null
-
-  try {
-    const host = pds.replace('https://', '')
-    const url = `${xrpcUrl(host, comAtprotoRepo.getRecord)}?repo=${did}&collection=${collection}&rkey=self`
-    const res = await fetch(url)
-    if (res.ok) {
-      const record = await res.json()
-      return record.value as RseCollection
-    }
-  } catch {
-    // Failed
-  }
-  return null
 }
 
 // VRM collection type
@@ -685,34 +661,15 @@ export interface VrmCollection {
 // Get user's VRM collection (ai.syui.vrm)
 export async function getVrm(did: string): Promise<VrmCollection | null> {
   const collection = 'ai.syui.vrm'
-
+  const extractValue = (data: unknown) => (data as { value: VrmCollection }).value
-  // Try local first
+  return fetchLocalThenRemote<VrmCollection>(
-  try {
+    did,
-    const res = await fetch(`/at/${did}/${collection}/self.json`)
+    `/at/${did}/${collection}/self.json`,
-    if (res.ok && isJsonResponse(res)) {
+    remoteGetRecord(did, collection, 'self', extractValue),
-      const record = await res.json()
+    false,
-      return record.value as VrmCollection
+    null,
-    }
+    extractValue
-  } catch {
+  )
-    // Try remote
-  }
-
-  // Remote fallback
-  const pds = await getPds(did)
-  if (!pds) return null
-
-  try {
-    const host = pds.replace('https://', '')
-    const url = `${xrpcUrl(host, comAtprotoRepo.getRecord)}?repo=${did}&collection=${collection}&rkey=self`
-    const res = await fetch(url)
-    if (res.ok) {
-      const record = await res.json()
-      return record.value as VrmCollection
-    }
-  } catch {
-    // Failed
-  }
-  return null
 }
 
 // Link item type
@@ -747,34 +704,15 @@ export interface CardAdminData {
 // Get card admin data (ai.syui.card.admin)
 export async function getCardAdmin(did: string): Promise<CardAdminData | null> {
   const collection = 'ai.syui.card.admin'
-
+  const extractValue = (data: unknown) => (data as { value: CardAdminData }).value
-  // Try local first
+  return fetchLocalThenRemote<CardAdminData>(
-  try {
+    did,
-    const res = await fetch(`/at/${did}/${collection}/self.json`)
+    `/at/${did}/${collection}/self.json`,
-    if (res.ok && isJsonResponse(res)) {
+    remoteGetRecord(did, collection, 'self', extractValue),
-      const record = await res.json()
+    false,
-      return record.value as CardAdminData
+    null,
-    }
+    extractValue
-  } catch {
+  )
-    // Try remote
-  }
-
-  // Remote fallback
-  const pds = await getPds(did)
-  if (!pds) return null
-
-  try {
-    const host = pds.replace('https://', '')
-    const url = `${xrpcUrl(host, comAtprotoRepo.getRecord)}?repo=${did}&collection=${collection}&rkey=self`
-    const res = await fetch(url)
-    if (res.ok) {
-      const record = await res.json()
-      return record.value as CardAdminData
-    }
-  } catch {
-    // Failed
-  }
-  return null
 }
 
 // RSE admin data types
@@ -797,65 +735,27 @@ export interface RseAdminData {
 // Get RSE admin data (ai.syui.rse.admin)
 export async function getRseAdmin(did: string): Promise<RseAdminData | null> {
   const collection = 'ai.syui.rse.admin'
-
+  const extractValue = (data: unknown) => (data as { value: RseAdminData }).value
-  // Try local first
+  return fetchLocalThenRemote<RseAdminData>(
-  try {
+    did,
-    const res = await fetch(`/at/${did}/${collection}/self.json`)
+    `/at/${did}/${collection}/self.json`,
-    if (res.ok && isJsonResponse(res)) {
+    remoteGetRecord(did, collection, 'self', extractValue),
-      const record = await res.json()
+    false,
-      return record.value as RseAdminData
+    null,
-    }
+    extractValue
-  } catch {
+  )
-    // Try remote
-  }
-
-  // Remote fallback
-  const pds = await getPds(did)
-  if (!pds) return null
-
-  try {
-    const host = pds.replace('https://', '')
-    const url = `${xrpcUrl(host, comAtprotoRepo.getRecord)}?repo=${did}&collection=${collection}&rkey=self`
-    const res = await fetch(url)
-    if (res.ok) {
-      const record = await res.json()
-      return record.value as RseAdminData
-    }
-  } catch {
-    // Failed
-  }
-  return null
 }
 
 // Get user's links (ai.syui.at.link)
 export async function getLinks(did: string): Promise<LinkCollection | null> {
   const collection = 'ai.syui.at.link'
-
+  const extractValue = (data: unknown) => (data as { value: LinkCollection }).value
-  // Try local first
+  return fetchLocalThenRemote<LinkCollection>(
-  try {
+    did,
-    const res = await fetch(`/at/${did}/${collection}/self.json`)
+    `/at/${did}/${collection}/self.json`,
-    if (res.ok && isJsonResponse(res)) {
+    remoteGetRecord(did, collection, 'self', extractValue),
-      const record = await res.json()
+    false,
-      return record.value as LinkCollection
+    null,
-    }
+    extractValue
-  } catch {
+  )
-    // Try remote
-  }
-
-  // Remote fallback
-  const pds = await getPds(did)
-  if (!pds) return null
-
-  try {
-    const host = pds.replace('https://', '')
-    const url = `${xrpcUrl(host, comAtprotoRepo.getRecord)}?repo=${did}&collection=${collection}&rkey=self`
-    const res = await fetch(url)
-    if (res.ok) {
-      const record = await res.json()
-      return record.value as LinkCollection
-    }
-  } catch {
-    // Failed
-  }
-  return null
 }

src/web/lib/markdown.ts

@@ -1,5 +1,6 @@
 import { marked } from 'marked'
 import hljs from 'highlight.js'
+import { escapeHtml } from './util'
 
 // Configure marked
 marked.setOptions({
@@ -21,16 +22,6 @@ renderer.code = function({ text, lang }: { text: string; lang?: string }) {
 
 marked.use({ renderer })
 
-// Escape HTML
-function escapeHtml(text: string): string {
-  return text
-    .replace(/&/g, '&')
-    .replace(/</g, '&lt;')
-    .replace(/>/g, '&gt;')
-    .replace(/"/g, '&quot;')
-    .replace(/'/g, '&#039;')
-}
-
 // Render markdown to HTML
 export function renderMarkdown(content: string): string {
   return marked(content) as string

src/web/lib/util.ts

@@ -0,0 +1,104 @@
+// Shared utility functions
+
+// Escape HTML to prevent XSS
+export function escapeHtml(text: string): string {
+  return text
+    .replace(/&/g, '&')
+    .replace(/</g, '&lt;')
+    .replace(/>/g, '&gt;')
+    .replace(/"/g, '&quot;')
+    .replace(/'/g, '&#039;')
+}
+
+// Escape for HTML attributes (same as escapeHtml)
+export function escapeAttr(text: string): string {
+  return escapeHtml(text)
+}
+
+// Format date as yyyy/mm/dd
+export function formatDate(dateStr: string): string {
+  const d = new Date(dateStr)
+  const year = d.getFullYear()
+  const month = String(d.getMonth() + 1).padStart(2, '0')
+  const day = String(d.getDate()).padStart(2, '0')
+  return `${year}/${month}/${day}`
+}
+
+// Format date/time as mm/dd hh:mm
+export function formatDateTime(dateStr: string): string {
+  const d = new Date(dateStr)
+  const month = String(d.getMonth() + 1).padStart(2, '0')
+  const day = String(d.getDate()).padStart(2, '0')
+  const hour = String(d.getHours()).padStart(2, '0')
+  const min = String(d.getMinutes()).padStart(2, '0')
+  return `${month}/${day} ${hour}:${min}`
+}
+
+// Format date in ja-JP locale
+export function formatDateJa(dateStr: string): string {
+  return new Date(dateStr).toLocaleDateString('ja-JP', {
+    year: 'numeric',
+    month: '2-digit',
+    day: '2-digit',
+  })
+}
+
+// Get current language preference
+export function getLang(): string {
+  return localStorage.getItem('preferred-lang') || 'ja'
+}
+
+// Get localized text from a {ja, en} object
+export function getLocalizedText(obj: { ja: string; en: string } | undefined): string {
+  if (!obj) return ''
+  const lang = getLang()
+  return obj[lang as 'ja' | 'en'] || obj.ja || obj.en || ''
+}
+
+// Get translated content from a record with translations field
+export function getTranslatedContent(
+  originalText: string,
+  translations: Record<string, { content: string | { text: string } }> | undefined,
+  originalLang: string = 'ja'
+): string {
+  const currentLang = getLang()
+  if (translations && currentLang !== originalLang && translations[currentLang]) {
+    const translated = translations[currentLang].content
+    if (typeof translated === 'string') return translated
+    if (translated && typeof translated === 'object' && 'text' in translated) return translated.text
+  }
+  return originalText
+}
+
+// Extract rkey from AT URI
+export function getRkeyFromUri(uri: string): string {
+  return uri.split('/').pop() || ''
+}
+
+// Extract authority (DID) from AT URI
+export function getAuthorityFromUri(uri: string): string {
+  return uri.replace('at://', '').split('/')[0]
+}
+
+// Async button helper: find button by ID, add click handler with loading state
+export function setupAsyncButton(
+  id: string,
+  loadingText: string,
+  handler: (btn: HTMLButtonElement) => Promise<void>
+): void {
+  const btn = document.getElementById(id) as HTMLButtonElement | null
+  if (!btn) return
+  const originalText = btn.textContent || ''
+  btn.addEventListener('click', async () => {
+    btn.textContent = loadingText
+    btn.disabled = true
+    try {
+      await handler(btn)
+    } catch (err) {
+      console.error(`${id} failed:`, err)
+      alert(`Failed: ${err}`)
+      btn.textContent = originalText
+      btn.disabled = false
+    }
+  })
+}