feat(me): populate reads/links from bookmarks instantly

- Add deriveReadsFromBookmarks helper to convert 30023 bookmarks to ReadItems
- Add deriveLinksFromBookmarks helper for web bookmarks (39701) and URLs
- Update loadReadsTab to show bookmarked articles immediately, enrich in background
- Update loadLinksTab to show bookmarked links immediately, enrich in background
- Background enrichment merges reading progress only for displayed items
- Preserve existing pull-to-refresh and empty state logic

src/utils/linksFromBookmarks.ts

@@ -0,0 +1,69 @@
+import { Bookmark } from '../types/bookmarks'
+import { ReadItem } from '../services/readsService'
+import { KINDS } from '../config/kinds'
+import { fallbackTitleFromUrl } from './readItemMerge'
+
+/**
+ * Derives ReadItems from bookmarks for external URLs:
+ * - Web bookmarks (kind:39701)
+ * - Any bookmark with http(s) URLs in content or urlReferences
+ */
+export function deriveLinksFromBookmarks(bookmarks: Bookmark[]): ReadItem[] {
+  const linksMap = new Map<string, ReadItem>()
+  
+  const allBookmarks = bookmarks.flatMap(b => b.individualBookmarks || [])
+  
+  for (const bookmark of allBookmarks) {
+    const urls: string[] = []
+    
+    // Web bookmarks (kind:39701) - extract from 'd' tag
+    if (bookmark.kind === KINDS.WebBookmark) {
+      const dTag = bookmark.tags.find(t => t[0] === 'd')?.[1]
+      if (dTag) {
+        const url = dTag.startsWith('http') ? dTag : `https://${dTag}`
+        urls.push(url)
+      }
+    }
+    
+    // Extract URLs from urlReferences (pre-extracted by bookmarkService)
+    if (bookmark.urlReferences && bookmark.urlReferences.length > 0) {
+      urls.push(...bookmark.urlReferences)
+    }
+    
+    // Extract URLs from content if not already captured
+    if (bookmark.content) {
+      const urlRegex = /(https?:\/\/[^\s]+)/g
+      const matches = bookmark.content.match(urlRegex)
+      if (matches) {
+        urls.push(...matches)
+      }
+    }
+    
+    // Create ReadItem for each unique URL
+    for (const url of [...new Set(urls)]) {
+      if (!linksMap.has(url)) {
+        const item: ReadItem = {
+          id: url,
+          source: 'bookmark',
+          type: 'external',
+          url,
+          title: bookmark.title || fallbackTitleFromUrl(url),
+          summary: bookmark.summary,
+          image: bookmark.image,
+          readingProgress: 0,
+          readingTimestamp: bookmark.added_at || bookmark.created_at
+        }
+        
+        linksMap.set(url, item)
+      }
+    }
+  }
+  
+  // Sort by most recent bookmark activity
+  return Array.from(linksMap.values()).sort((a, b) => {
+    const timeA = a.readingTimestamp || 0
+    const timeB = b.readingTimestamp || 0
+    return timeB - timeA
+  })
+}
+

src/utils/readsFromBookmarks.ts

@@ -0,0 +1,47 @@
+import { Bookmark, IndividualBookmark } from '../types/bookmarks'
+import { ReadItem } from '../services/readsService'
+import { classifyBookmarkType } from './bookmarkTypeClassifier'
+import { KINDS } from '../config/kinds'
+
+/**
+ * Derives ReadItems from bookmarks for Nostr articles (kind:30023).
+ * Returns items with type='article', using hydrated event data when available.
+ */
+export function deriveReadsFromBookmarks(bookmarks: Bookmark[]): ReadItem[] {
+  const readsMap = new Map<string, ReadItem>()
+  
+  const allBookmarks = bookmarks.flatMap(b => b.individualBookmarks || [])
+  
+  for (const bookmark of allBookmarks) {
+    const bookmarkType = classifyBookmarkType(bookmark)
+    
+    // Only include articles (kind:30023)
+    if (bookmarkType === 'article' && bookmark.kind === KINDS.BlogPost) {
+      const coordinate = bookmark.id // Already in coordinate format
+      
+      const item: ReadItem = {
+        id: coordinate,
+        source: 'bookmark',
+        type: 'article',
+        readingProgress: 0,
+        readingTimestamp: bookmark.added_at || bookmark.created_at,
+        event: bookmark.event,
+        title: bookmark.title,
+        summary: bookmark.summary,
+        image: bookmark.image,
+        author: bookmark.pubkey,
+        url: bookmark.url
+      }
+      
+      readsMap.set(coordinate, item)
+    }
+  }
+  
+  // Sort by most recent bookmark activity
+  return Array.from(readsMap.values()).sort((a, b) => {
+    const timeA = a.readingTimestamp || 0
+    const timeB = b.readingTimestamp || 0
+    return timeB - timeA
+  })
+}
+