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>

Dockerfile

@@ -0,0 +1,18 @@
+# syntax=docker/dockerfile:1
+FROM node:22-alpine AS deps
+WORKDIR /app
+COPY package.json package-lock.json* ./
+RUN npm ci
+
+FROM node:22-alpine AS build
+WORKDIR /app
+COPY --from=deps /app/node_modules ./node_modules
+COPY . .
+RUN npm run build
+
+FROM nginx:1.27-alpine AS runtime
+COPY deploy/nginx.conf /etc/nginx/conf.d/default.conf
+COPY --from=build /app/dist /usr/share/nginx/html
+EXPOSE 80
+HEALTHCHECK --interval=30s --timeout=3s --start-period=5s --retries=3 \
+  CMD wget -qO- http://127.0.0.1/healthz || exit 1