feat: add colored borders to blog post and highlight cards based on relationship

- Add level-based colored borders to blog post cards (mine/friends/nostrverse)
- Updated BlogPostCard to accept and apply level prop
- Modified Explore.tsx to classify blog posts by relationship level
- Added CSS styling using settings colors for visual distinction
- Highlights already had this feature, now writings have it too

src/components/BlogPostCard.tsx

@@ -10,9 +10,10 @@ import { Models } from 'applesauce-core'
 interface BlogPostCardProps {
   post: BlogPostPreview
   href: string
+  level?: 'mine' | 'friends' | 'nostrverse'
 }
 
-const BlogPostCard: React.FC<BlogPostCardProps> = ({ post, href }) => {
+const BlogPostCard: React.FC<BlogPostCardProps> = ({ post, href, level }) => {
   const profile = useEventModel(Models.ProfileModel, [post.author])
   const displayName = profile?.name || profile?.display_name || 
     `${post.author.slice(0, 8)}...${post.author.slice(-4)}`
@@ -25,7 +26,7 @@ const BlogPostCard: React.FC<BlogPostCardProps> = ({ post, href }) => {
   return (
     <Link 
       to={href}
-      className="blog-post-card"
+      className={`blog-post-card ${level ? `level-${level}` : ''}`}
       style={{ textDecoration: 'none', color: 'inherit' }}
     >
       <div className="blog-post-card-image">

src/components/Explore.tsx

@@ -278,25 +278,33 @@ const Explore: React.FC<ExploreProps> = ({ relayPool, eventStore, settings, acti
     })
   }, [highlights, activeAccount?.pubkey, followedPubkeys, visibility])
 
-  // Filter blog posts by future dates and visibility
+  // Filter blog posts by future dates and visibility, and add level classification
   const filteredBlogPosts = useMemo(() => {
     const maxFutureTime = Date.now() / 1000 + (24 * 60 * 60) // 1 day from now
-    return blogPosts.filter(post => {
-      // Filter out future dates
-      const publishedTime = post.published || post.event.created_at
-      if (publishedTime > maxFutureTime) return false
+    return blogPosts
+      .filter(post => {
+        // Filter out future dates
+        const publishedTime = post.published || post.event.created_at
+        if (publishedTime > maxFutureTime) return false
         
-      // Apply visibility filters
-      const isMine = activeAccount && post.author === activeAccount.pubkey
-      const isFriend = followedPubkeys.has(post.author)
-      const isNostrverse = !isMine && !isFriend
+        // Apply visibility filters
+        const isMine = activeAccount && post.author === activeAccount.pubkey
+        const isFriend = followedPubkeys.has(post.author)
+        const isNostrverse = !isMine && !isFriend
         
-      if (isMine && !visibility.mine) return false
-      if (isFriend && !visibility.friends) return false
-      if (isNostrverse && !visibility.nostrverse) return false
+        if (isMine && !visibility.mine) return false
+        if (isFriend && !visibility.friends) return false
+        if (isNostrverse && !visibility.nostrverse) return false
         
-      return true
-    })
+        return true
+      })
+      .map(post => {
+        // Add level classification
+        const isMine = activeAccount && post.author === activeAccount.pubkey
+        const isFriend = followedPubkeys.has(post.author)
+        const level: 'mine' | 'friends' | 'nostrverse' = isMine ? 'mine' : isFriend ? 'friends' : 'nostrverse'
+        return { ...post, level }
+      })
   }, [blogPosts, activeAccount, followedPubkeys, visibility])
 
   const renderTabContent = () => {
@@ -322,6 +330,7 @@ const Explore: React.FC<ExploreProps> = ({ relayPool, eventStore, settings, acti
                 key={`${post.author}:${post.event.tags.find(t => t[0] === 'd')?.[1]}`}
                 post={post}
                 href={getPostUrl(post)}
+                level={post.level}
               />
             ))}
           </div>

src/styles/components/cards.css

@@ -81,6 +81,9 @@
 .explore-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 2rem; margin-top: 2rem; }
 .blog-post-card { background: var(--color-bg); border: 1px solid var(--color-border); border-radius: 12px; overflow: hidden; transition: all 0.3s ease; cursor: pointer; display: flex; flex-direction: column; height: 100%; }
 .blog-post-card:hover { border-color: var(--color-primary); transform: translateY(-4px); box-shadow: 0 8px 24px rgba(99, 102, 241, 0.15); }
+.blog-post-card.level-mine { border-color: color-mix(in srgb, var(--highlight-color-mine, #fde047) 60%, #333); box-shadow: 0 0 0 1px color-mix(in srgb, var(--highlight-color-mine, #fde047) 25%, transparent); }
+.blog-post-card.level-friends { border-color: color-mix(in srgb, var(--highlight-color-friends, #f97316) 60%, #333); box-shadow: 0 0 0 1px color-mix(in srgb, var(--highlight-color-friends, #f97316) 25%, transparent); }
+.blog-post-card.level-nostrverse { border-color: color-mix(in srgb, var(--highlight-color-nostrverse, #9333ea) 60%, #333); box-shadow: 0 0 0 1px color-mix(in srgb, var(--highlight-color-nostrverse, #9333ea) 25%, transparent); }
 .blog-post-card-image { width: 100%; height: 200px; overflow: hidden; background: var(--color-bg-subtle); display: flex; align-items: center; justify-content: center; }
 .blog-post-card-image img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.3s ease; }
 .blog-post-card:hover .blog-post-card-image img { transform: scale(1.05); }