feat(blog): add /blog index page with dynamic rendering

- Create blog index page at /blog
- Use force-dynamic for request-time publish gating
- Require Node.js runtime for filesystem reads
- Display posts with title, description, and date
- Add empty state when no posts are published
- Include tags display (up to 3)

Closes: MKT-68

apps/web-roo-code/src/app/blog/page.tsx

@@ -0,0 +1,112 @@
+import type { Metadata } from "next"
+import Link from "next/link"
+import { SEO } from "@/lib/seo"
+import { ogImageUrl } from "@/lib/og"
+import { getAllBlogPosts, formatPostDatePt } from "@/lib/blog"
+
+// Force dynamic rendering to evaluate publish gating at request-time
+export const dynamic = "force-dynamic"
+
+// Require Node.js runtime for filesystem reads
+export const runtime = "nodejs"
+
+const TITLE = "Blog"
+const DESCRIPTION =
+	"Insights on AI-powered software development, engineering workflows, and the future of coding with Roo Code."
+const PATH = "/blog"
+
+export const metadata: Metadata = {
+	title: TITLE,
+	description: DESCRIPTION,
+	alternates: {
+		canonical: `${SEO.url}${PATH}`,
+	},
+	openGraph: {
+		title: TITLE,
+		description: DESCRIPTION,
+		url: `${SEO.url}${PATH}`,
+		siteName: SEO.name,
+		images: [
+			{
+				url: ogImageUrl(TITLE, DESCRIPTION),
+				width: 1200,
+				height: 630,
+				alt: TITLE,
+			},
+		],
+		locale: SEO.locale,
+		type: "website",
+	},
+	twitter: {
+		card: SEO.twitterCard,
+		title: TITLE,
+		description: DESCRIPTION,
+		images: [ogImageUrl(TITLE, DESCRIPTION)],
+	},
+	keywords: [...SEO.keywords, "blog", "engineering blog", "AI development"],
+}
+
+export default function BlogIndex() {
+	// Get all published posts (sorted newest first)
+	const posts = getAllBlogPosts()
+
+	return (
+		<div className="container mx-auto px-4 py-12 sm:px-6 lg:px-8">
+			<div className="mx-auto max-w-4xl">
+				{/* Page Header */}
+				<div className="mb-12 text-center">
+					<h1 className="text-3xl font-bold tracking-tight sm:text-4xl md:text-5xl">Blog</h1>
+					<p className="mt-4 text-lg text-muted-foreground">{DESCRIPTION}</p>
+				</div>
+
+				{/* Posts List */}
+				{posts.length === 0 ? (
+					<EmptyState />
+				) : (
+					<div className="space-y-8">
+						{posts.map((post) => (
+							<article
+								key={post.slug}
+								className="group rounded-lg border border-border bg-card p-6 transition-colors hover:border-primary/50">
+								<Link href={`/blog/${post.slug}`} className="block">
+									<h2 className="text-xl font-semibold tracking-tight group-hover:text-primary sm:text-2xl">
+										{post.title}
+									</h2>
+									<p className="mt-2 text-muted-foreground line-clamp-2">{post.description}</p>
+									<div className="mt-4 flex items-center gap-4 text-sm text-muted-foreground">
+										<time dateTime={post.publish_date}>
+											Posted {formatPostDatePt(post.publish_date)}
+										</time>
+										{post.tags.length > 0 && (
+											<>
+												<span className="text-border">•</span>
+												<div className="flex flex-wrap gap-2">
+													{post.tags.slice(0, 3).map((tag) => (
+														<span
+															key={tag}
+															className="rounded-full bg-muted px-2 py-0.5 text-xs">
+															{tag}
+														</span>
+													))}
+												</div>
+											</>
+										)}
+									</div>
+								</Link>
+							</article>
+						))}
+					</div>
+				)}
+			</div>
+		</div>
+	)
+}
+
+function EmptyState() {
+	return (
+		<div className="rounded-lg border border-dashed border-border p-12 text-center">
+			<h2 className="text-lg font-medium">No posts yet</h2>
+			<p className="mt-2 text-muted-foreground">Check back soon for new content.</p>
+		</div>
+	)
+}