feat(www): SEO & AEO improvements

- Add site URL (https://simple-stack.dev) to astro.config.mjs enabling
  canonical URLs, sitemap generation, and proper OG meta tags
- Add WebSite + Person JSON-LD structured data for search engine and AI
  engine discoverability
- Add robots.txt pointing to sitemap
- Remove redundant custom title head override on homepage
- Add noindex meta to deprecated pages (stream, form/*) to preserve
  crawl budget
- Add title attribute to video element in stream.md for accessibility

Co-Authored-By: Oz <oz-agent@warp.dev>

Author: bholmesdev

www/astro.config.mjs

@@ -2,9 +2,42 @@ import starlight from "@astrojs/starlight";
 import { defineConfig } from "astro/config";
 
 export default defineConfig({
+	site: "https://simple-stack.dev",
 	integrations: [
 		starlight({
 			title: "Simple Stack 🌱",
+			description:
+				"A suite of tools built for Astro to simplify your workflow. Includes Simple Store, Simple Scope, and Simple Query.",
+			head: [
+				{
+					tag: "meta",
+					attrs: {
+						property: "og:type",
+						content: "website",
+					},
+				},
+				{
+					tag: "script",
+					attrs: { type: "application/ld+json" },
+					content: JSON.stringify({
+						"@context": "https://schema.org",
+						"@type": "WebSite",
+						name: "Simple Stack",
+						url: "https://simple-stack.dev",
+						description:
+							"A suite of tools built for Astro to simplify your workflow.",
+						author: {
+							"@type": "Person",
+							name: "Ben Holmes",
+							url: "https://bholmes.dev",
+							sameAs: [
+								"https://github.com/bholmesdev",
+								"https://twitter.com/baborbuilt",
+							],
+						},
+					}),
+				},
+			],
 			social: [
 				{
 					icon: "github",

www/public/robots.txt

@@ -0,0 +1,4 @@
+User-agent: *
+Allow: /
+
+Sitemap: https://simple-stack.dev/sitemap-index.xml

www/src/content/docs/form/client.md

@@ -3,6 +3,11 @@ title:  Add client validation
 description: Add client validation to your forms
 sidebar:
   order: 3
+head:
+  - tag: meta
+    attrs:
+      name: robots
+      content: noindex, follow
 ---
 
 :::caution

www/src/content/docs/form/index.mdx

@@ -4,6 +4,11 @@ description: The simple way to validate forms in your fullstack app.
 sidebar:
   label: Get started
   order: 1
+head:
+  - tag: meta
+    attrs:
+      name: robots
+      content: noindex, follow
 ---
 
 import { Tabs, TabItem } from '@astrojs/starlight/components';

www/src/content/docs/form/parse.md

@@ -3,6 +3,11 @@ title: Parse form requests
 description: Validate forms server-side
 sidebar:
   order: 2
+head:
+  - tag: meta
+    attrs:
+      name: robots
+      content: noindex, follow
 ---
 
 :::caution

www/src/content/docs/index.mdx

@@ -2,9 +2,6 @@
 title: Simple stack 🌱
 description: A suite of tools built for Astro to simplify your workflow.
 tableOfContents: false
-head:
-  - tag: title
-    content: Simple stack 🌱
 ---
 
 A collection of tools I've built to **make web development simpler.**

www/src/content/docs/stream.md

@@ -1,6 +1,11 @@
 ---
 title: Simple stream 🌊
 description: Suspend Astro components with fallback content. Like React Server Components, but Just HTML ™️
+head:
+  - tag: meta
+    attrs:
+      name: robots
+      content: noindex, follow
 ---
 
 :::caution
@@ -9,7 +14,7 @@ description: Suspend Astro components with fallback content. Like React Server C
 
 Suspend Astro components with fallback content. Like React Server Components, but Just HTML ™️
 
-<video controls width="100%" style="aspect-ratio:1.65/1" src="/assets/simple-stream-intro.mov"></video>
+<video controls width="100%" style="aspect-ratio:1.65/1" src="/assets/simple-stream-intro.mov" title="Simple Stream demo showing Astro component suspension with fallback content"></video>
 
 ```astro
 ---