feat: implement blog infrastructure, add SEO keyword planning, and create footer component

src/app/(main)/(marketing)/blog/[slug]/page.tsx

@@ -115,11 +115,17 @@ export default function BlogPostPage({ params }: { params: { slug: string } }) {
         )}
       </header>
 
-      {post.heroImage && (
-        <div className="relative aspect-video w-full rounded-2xl overflow-hidden shadow-lg mb-10">
-          <Image src={post.heroImage} alt={post.imageAlt || post.title} fill className="object-cover" />
-        </div>
-      )}
+      {post.heroImage && (
+        <div className="relative aspect-video w-full rounded-2xl overflow-hidden shadow-lg mb-10">
+          <Image
+            src={post.heroImage}
+            alt={post.imageAlt || post.title}
+            fill
+            unoptimized={post.heroImage.endsWith('.svg')}
+            className="object-cover"
+          />
+        </div>
+      )}
 
       {/* AEO BLOCK: ANSWER */}
       <div className="max-w-3xl mx-auto">