Initial commit: BlueCap Strategies Astro site

Static Astro 5 site for BlueCap Strategies with exact live-site content
parity, deployed to k3s via GitOps (ArgoCD).

- Page copy in Markdown content collections (services, focus-areas, pages,
  insights) with a Zod SEO schema enforced at build time
- Homepage + About restored to exact live copy; real live-site imagery
- Build-time SEO linter (scripts/seo-lint.mjs) and Playwright e2e suite
- Multi-stage Dockerfile (nginx serves dist/) and Kustomize manifests (k8s/)
- Per-agent robots.txt; config-driven PostHog + Umami analytics scaffold
- ADRs and engineering docs under docs/

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

.env.example

@@ -0,0 +1,10 @@
+PUBLIC_SITE_URL=https://www.bluecapstrategies.com
+PUBLIC_CONTACT_FORM_ENDPOINT=
+
+# Analytics — side-by-side trial (ADR-0005). Leave blank to disable each.
+# PostHog (Cloud free tier recommended for the trial):
+PUBLIC_POSTHOG_KEY=
+PUBLIC_POSTHOG_HOST=https://us.i.posthog.com
+# Umami (self-hosted):
+PUBLIC_UMAMI_SRC=
+PUBLIC_UMAMI_WEBSITE_ID=