feat: Add blog pages and a global search command for projects and posts.

src/components/ui/search-command.tsx

@@ -3,7 +3,6 @@ import { Command } from 'cmdk'
 import { useNavigate } from 'react-router-dom'
 import { supabase } from '@/lib/supabase'
 import { Search, FileText, Code, Loader2 } from 'lucide-react'
-import { cn } from '@/lib/utils'
 
 export function SearchCommand() {
   const [open, setOpen] = useState(false)

src/pages/public/Blog.tsx

@@ -1,7 +1,7 @@
 import { useEffect, useState } from 'react'
 import { supabase } from '@/lib/supabase'
 import { Link } from 'react-router-dom'
-import { Loader2, Calendar, ArrowRight } from 'lucide-react'
+import { Loader2, ArrowRight } from 'lucide-react'
 
 export default function Blog() {
   const [posts, setPosts] = useState<any[]>([])

src/pages/public/BlogPost.tsx

@@ -2,7 +2,7 @@ import { useEffect, useState } from 'react'
 import { useParams, Link } from 'react-router-dom'
 import { supabase } from '@/lib/supabase'
 import { MarkdownViewer } from '@/components/ui/markdown-viewer'
-import { Loader2, ArrowLeft, Clock, Calendar } from 'lucide-react'
+import { Loader2, ArrowLeft, Calendar } from 'lucide-react'
 
 export default function BlogPost() {
   const { slug } = useParams()