refactor(bookmarks): never default timestamps to now; allow nulls and sort nulls last; render empty when missing

src/services/bookmarkController.ts

@@ -343,7 +343,7 @@ class BookmarkController {
           ...b,
           tags: b.tags || [],
           content: b.content || this.externalEventStore?.getEvent(b.id)?.content || '', // Fallback to eventStore content
-          created_at: b.created_at || this.externalEventStore?.getEvent(b.id)?.created_at || b.created_at
+          created_at: (b.created_at ?? this.externalEventStore?.getEvent(b.id)?.created_at ?? null)
         }))
         
         const sortedBookmarks = enriched
@@ -352,9 +352,10 @@ class BookmarkController {
             urlReferences: extractUrlsFromContent(b.content)
           }))
           .sort((a, b) => {
-            // Sort by listUpdatedAt (timestamp of bookmark list event = proxy for when bookmarked)
-            // Newest first (descending)
-            return (b.listUpdatedAt || 0) - (a.listUpdatedAt || 0)
+            // Sort by listUpdatedAt desc, nulls last
+            const aTs = a.listUpdatedAt ?? -Infinity
+            const bTs = b.listUpdatedAt ?? -Infinity
+            return bTs - aTs
           })
         
         // DEBUG: Show top 5 sorted bookmarks
@@ -370,7 +371,7 @@ class BookmarkController {
           title: `Bookmarks (${sortedBookmarks.length})`,
           url: '',
           content: latestContent,
-          created_at: newestCreatedAt || Math.floor(Date.now() / 1000),
+          created_at: newestCreatedAt || 0,
           tags: allTags,
           bookmarkCount: sortedBookmarks.length,
           eventReferences: allTags.filter((tag: string[]) => tag[0] === 'e').map((tag: string[]) => tag[1]),

src/services/bookmarkHelpers.ts

@@ -81,7 +81,7 @@ export const processApplesauceBookmarks = (
         allItems.push({
           id: note.id,
           content: '',
-          created_at: note.created_at || 0,
+          created_at: note.created_at ?? null,
           pubkey: note.author || activeAccount.pubkey,
           kind: 1, // Short note kind
           tags: [],
@@ -101,14 +101,14 @@ export const processApplesauceBookmarks = (
         allItems.push({
           id: coordinate,
           content: '',
-          created_at: article.created_at || 0,
+          created_at: article.created_at ?? null,
           pubkey: article.pubkey,
           kind: article.kind, // Usually 30023 for long-form articles
           tags: [],
           parsedContent: undefined,
           type: 'event' as const,
           isPrivate,
-          listUpdatedAt: parentCreatedAt || 0
+          listUpdatedAt: parentCreatedAt ?? null
         })
       })
     }
@@ -126,7 +126,7 @@ export const processApplesauceBookmarks = (
           parsedContent: undefined,
           type: 'event' as const,
           isPrivate,
-          listUpdatedAt: parentCreatedAt || 0
+          listUpdatedAt: parentCreatedAt ?? null
         })
       })
     }
@@ -159,14 +159,14 @@ export const processApplesauceBookmarks = (
       return {
         id: bookmark.id!,
         content: bookmark.content || '',
-        created_at: bookmark.created_at || 0,
+        created_at: bookmark.created_at ?? null,
         pubkey: activeAccount.pubkey,
         kind: bookmark.kind || 30001,
         tags: bookmark.tags || [],
         parsedContent: bookmark.content ? (getParsedContent(bookmark.content) as ParsedContent) : undefined,
         type: 'event' as const,
         isPrivate,
-        listUpdatedAt: parentCreatedAt || 0
+        listUpdatedAt: parentCreatedAt ?? null
       }
     })
   

src/services/bookmarkProcessing.ts

@@ -136,7 +136,7 @@ export async function collectBookmarksFromEvents(
       publicItemsAll.push({
         id: evt.id,
         content: evt.content || '',
-        created_at: evt.created_at || Math.floor(Date.now() / 1000),
+        created_at: evt.created_at ?? null,
         pubkey: evt.pubkey,
         kind: evt.kind,
         tags: evt.tags || [],
@@ -148,7 +148,7 @@ export async function collectBookmarksFromEvents(
         setTitle,
         setDescription,
         setImage,
-        listUpdatedAt: evt.created_at || Math.floor(Date.now() / 1000)
+        listUpdatedAt: evt.created_at ?? null
       })
       continue
     }

src/services/readsService.ts

@@ -76,7 +76,7 @@ export async function fetchAllReads(
             source: 'bookmark',
             type: 'article',
             readingProgress: 0,
-            readingTimestamp: bookmark.created_at
+            readingTimestamp: bookmark.created_at ?? undefined
           }
           readsMap.set(coordinate, item)
           if (onItem) emitItem(item)