feat(www): SEO/AEO audit — add site URL, robots.txt, structured data, and improved meta

- Add site: 'https://simple-stack.dev' to astro.config.mjs (enables
  canonical URLs and sitemap generation)
- Add WebSite JSON-LD structured data with publisher info via Starlight
  head config
- Add meta robots tag (index, follow) to all pages
- Create public/robots.txt with sitemap reference
- Improve homepage title and description for keyword targeting
- Improve Store, Scope, Query page descriptions for AEO (answer-first,
  self-contained summaries for AI citation)

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

Author: bholmesdev

www/astro.config.mjs

@@ -2,6 +2,7 @@ import starlight from "@astrojs/starlight";
 import { defineConfig } from "astro/config";
 
 export default defineConfig({
+	site: "https://simple-stack.dev",
 	integrations: [
 		starlight({
 			title: "Simple Stack 🌱",
@@ -13,6 +14,36 @@ export default defineConfig({
 				},
 				{ icon: "discord", label: "Discord", href: "https://wtw.dev/chat" },
 			],
+			head: [
+				{
+					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 collection of lightweight, focused tools for Astro and modern web development. Includes Simple Store, Simple Scope, and Simple Query.",
+						publisher: {
+							"@type": "Person",
+							name: "Ben Holmes",
+							url: "https://bholmes.dev",
+							sameAs: [
+								"https://github.com/bholmesdev",
+								"https://wtw.dev",
+							],
+						},
+					}),
+				},
+				{
+					tag: "meta",
+					attrs: {
+						name: "robots",
+						content: "index, follow",
+					},
+				},
+			],
 			sidebar: [
 				{
 					label: "💾 Store",

www/public/robots.txt

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

www/src/content/docs/index.mdx

@@ -1,15 +1,15 @@
 ---
-title: Simple stack 🌱
-description: A suite of tools built for Astro to simplify your workflow.
+title: Simple Stack – Lightweight Tools for Astro & Web Development
+description: "Simple Stack is a collection of lightweight, zero-dependency tools for Astro and modern web development: Simple Store (reactive state), Simple Scope (scoped IDs), and Simple Query (DOM querying)."
 tableOfContents: false
 head:
   - tag: title
-    content: Simple stack 🌱
+    content: Simple Stack – Lightweight Tools for Astro & Web Development
 ---
 
-A collection of tools I've built to **make web development simpler.**
+Simple Stack is a collection of lightweight, focused tools for Astro and modern web development. Each package solves a single use case with minimal API surface and zero unnecessary features.
 
-To be honest, there isn't a "story" connecting these packages together (I'm no TanStack). But they follow a common theme: solve a simple use case without too many features.
+Includes **Simple Store** for reactive state management, **Simple Scope** for build-time scoped IDs, and **Simple Query** for DOM querying in Astro components.
 
 import { CardGrid, Card, LinkCard } from '@astrojs/starlight/components';
 

www/src/content/docs/query.mdx

@@ -1,6 +1,6 @@
 ---
 title: 💰 Simple Query
-description: A simple library to query the DOM from your Astro components.
+description: "Simple Query is a lightweight DOM querying library for Astro components. It provides scoped element selection via data-target attributes, signal-based reactivity, and automatic cleanup for view transitions — no framework required."
 ---
 
 import { Tabs, TabItem, LinkCard } from '@astrojs/starlight/components';

www/src/content/docs/scope.mdx

@@ -1,6 +1,6 @@
 ---
-title: 🔎 Simple scope
-description: Get a scoped ID for whatever file you're in. Resolved at build-time with zero client JS.
+title: 🔎 Simple Scope
+description: "Simple Scope is a Vite plugin that generates deterministic, file-scoped IDs at build time with zero client-side JavaScript. Use it for form label IDs, query selectors, and hydration-safe component references in Astro, React, Vue, and SvelteKit."
 ---
 
 import { LinkCard } from '@astrojs/starlight/components';

www/src/content/docs/store.mdx

@@ -1,6 +1,6 @@
 ---
-title: 💾 Simple store
-description: A reactive store that combines the simplicity of signals with the power of "selectors" you'd find in Zustand or Redux.
+title: 💾 Simple Store
+description: "Simple Store is a lightweight reactive state management library for React and Astro. It combines the simplicity of signals with selector-based updates like Zustand, with full support for nested state, middleware, and Next.js SSR."
 sidebar:
   label: Get started
   order: 1