feat: rebuild mintel.me as a single-page freelance site

The site now presents one freelance developer on one page: hero, introduction,
four typical cases (developer for a product, make an app reliable, automate a
process, a website) with what you get, how it runs and what it costs, a
process automation section, technology and project fit, how I work, two live
references, questions and contact.

- Hero and closing headline are drawn from running binary digits.
- Each case explains its four steps with an animated drawing; the automation
  section shows example workflows with work travelling between systems; a
  pipeline run shows what a test catches before a release.
- Contact is one email address, kept in parts and assembled in the browser so
  it never appears in the page source (src/domain/email.ts, spec first).
- Imprint and privacy pages added.
- The old site (blog, case studies, contact form, fixed-price pages, video
  rendering and related scripts) is removed. Its URLs redirect to the homepage.
- The deploy smoke test checks the legal pages and the redirects instead of
  the removed case study.
- Dev scripts use docker compose v2.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

apps/web/app/(site)/sitemap.ts

@@ -1,57 +1,14 @@
-import { MetadataRoute } from "next";
-import { getAllPosts } from "@/src/lib/posts";
-import { technologies } from "./technologies/[slug]/data";
+import type { MetadataRoute } from "next";
 
-/**
- * Sitemap Generator
- *
- * Standard Next.js 15 App Router sitemap generation.
- * This file dynamically generates /sitemap.xml
- */
-export default async function sitemap(): Promise<MetadataRoute.Sitemap> {
-  const allPosts = await getAllPosts();
+/** The site is a single page. */
+export default function sitemap(): MetadataRoute.Sitemap {
   const baseUrl = process.env.NEXT_PUBLIC_BASE_URL || "https://mintel.me";
-
-  // 1. Core Pages
-  const routes = [
-    "",
-    "/about",
-    "/blog",
-    "/case-studies",
-    "/case-studies/klz-cables",
-    "/contact",
-    "/websites",
-  ].map((route) => ({
-    url: `${baseUrl}${route}`,
-    lastModified: new Date(),
-    changeFrequency: "monthly" as const,
-    priority: route === "" ? 1.0 : 0.8,
-  }));
-
-  // 2. Dynamic Blog Posts
-  const blogRoutes = allPosts.map((post) => ({
-    url: `${baseUrl}/blog/${post.slug}`,
-    lastModified: new Date(post.date),
-    changeFrequency: "monthly" as const,
-    priority: 0.7,
-  }));
-
-  // 3. Technology Detail Pages
-  const techRoutes = Object.keys(technologies).map((slug) => ({
-    url: `${baseUrl}/technologies/${slug}`,
-    lastModified: new Date(),
-    changeFrequency: "monthly" as const,
-    priority: 0.6,
-  }));
-
-  // 4. Tag Pages
-  const allTags = [...new Set(allPosts.flatMap((post) => post.tags))];
-  const tagRoutes = allTags.map((tag) => ({
-    url: `${baseUrl}/tags/${tag}`,
-    lastModified: new Date(),
-    changeFrequency: "weekly" as const,
-    priority: 0.3,
-  }));
-
-  return [...routes, ...blogRoutes, ...techRoutes, ...tagRoutes];
+  return [
+    {
+      url: baseUrl,
+      lastModified: new Date(),
+      changeFrequency: "monthly",
+      priority: 1,
+    },
+  ];
 }