feat: implement new semantic-release documentation site

.github/workflows/lint.yml

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+name: Code Quality
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+
+permissions:
+  contents: read
+
+jobs:
+  lint:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: actions/setup-node@v4
+        with:
+          node-version: lts/*
+          cache: npm
+
+      - run: npm ci
+
+      - run: npm run lint

.gitignore

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+# build output
+dist/
+# generated types
+.astro/
+
+# dependencies
+node_modules/
+
+# logs
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+pnpm-debug.log*
+
+
+# environment variables
+.env
+.env.production
+
+# macOS-specific files
+.DS_Store
+
+# IDE-specific files
+.vscode/
+.idea/

.prettierrc.js

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+/** @type {import("prettier").Config} */
+export default {
+  plugins: ["prettier-plugin-astro"],
+  overrides: [
+    {
+      files: "*.astro",
+      options: {
+        parser: "astro",
+      },
+    },
+  ],
+};

astro.config.js

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+// @ts-check
+import { defineConfig } from "astro/config";
+import starlight from "@astrojs/starlight";
+import tailwindcss from "@tailwindcss/vite";
+
+const VERCEL_PREVIEW_SITE =
+  process.env.VERCEL_ENV !== "production" &&
+  `https://${process.env.VERCEL_BRANCH_URL}`;
+
+const site = VERCEL_PREVIEW_SITE || "https://semantic-release.org/";
+
+// https://astro.build/config
+export default defineConfig({
+  site,
+  integrations: [
+    starlight({
+      title: "Semantic Release",
+      logo: {
+        light: "~/assets/sr-logo-light.svg",
+        dark: "~/assets/sr-logo-dark.svg",
+        replacesTitle: true,
+        alt: "Semantic Release",
+      },
+      editLink: {
+        baseUrl: "https://github.com/semantic-release/docs/edit/main/",
+      },
+      social: [
+        {
+          icon: "github",
+          label: "GitHub",
+          href: "https://github.com/semantic-release/semantic-release",
+        },
+      ],
+      customCss: ["~/styles/global.css"],
+      components: {
+        Hero: "~/components/Hero.astro",
+        Header: "~/components/Header.astro",
+        Head: "~/components/Head.astro",
+      },
+      sidebar: [
+        {
+          label: "Introduction",
+          slug: "intro",
+        },
+        {
+          label: "Usage",
+          items: [
+            { slug: "usage/getting-started" },
+            { slug: "usage/installation" },
+            { slug: "usage/ci-configuration" },
+            { slug: "usage/configuration" },
+            { slug: "usage/plugins" },
+            { slug: "usage/workflow-configuration" },
+            { slug: "usage/shareable-configurations" },
+          ],
+        },
+        {
+          label: "Extending",
+          items: [
+            { slug: "extending/plugins-list" },
+            { slug: "extending/shareable-configurations-list" },
+          ],
+        },
+        {
+          label: "Recipes",
+          items: [
+            {
+              label: "CI Configurations",
+              items: [
+                { slug: "recipes/ci-configurations" },
+                { slug: "recipes/ci-configurations/circleci-workflows" },
+                { slug: "recipes/ci-configurations/travis" },
+                { slug: "recipes/ci-configurations/gitlab-ci" },
+                { slug: "recipes/ci-configurations/github-actions" },
+                { slug: "recipes/ci-configurations/jenkins-ci" },
+              ],
+            },
+            {
+              label: "Git Hosted Services",
+              items: [
+                { slug: "recipes/git-hosted-services" },
+                { slug: "recipes/git-hosted-services/git-auth-ssh-keys" },
+              ],
+            },
+            {
+              label: "Release Workflow",
+              items: [
+                { slug: "recipes/release-workflow" },
+                { slug: "recipes/release-workflow/distribution-channels" },
+                { slug: "recipes/release-workflow/maintenance-releases" },
+                { slug: "recipes/release-workflow/pre-releases" },
+              ],
+            },
+          ],
+        },
+        {
+          label: "Developer Guide",
+          items: [
+            { slug: "developer-guide/js-api" },
+            { slug: "developer-guide/plugin" },
+            { slug: "developer-guide/shareable-configuration" },
+          ],
+        },
+        {
+          label: "Support",
+          items: [
+            { slug: "support/resources" },
+            { slug: "support/faq" },
+            { slug: "support/troubleshooting" },
+            { slug: "support/node-version" },
+            { slug: "support/node-support-policy" },
+            { slug: "support/git-version" },
+          ],
+        },
+      ],
+    }),
+  ],
+
+  vite: {
+    plugins: [tailwindcss()],
+  },
+});