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/sentry.client.config.ts

@@ -11,6 +11,7 @@ Sentry.init({
   enabled: true,
 
   tracesSampleRate: 0,
-  replaysOnErrorSampleRate: 1.0,
-  replaysSessionSampleRate: 0.1,
+  // No session replay: the privacy notice says sessions are not recorded.
+  replaysOnErrorSampleRate: 0,
+  replaysSessionSampleRate: 0,
 });