feat: Add full PDPA compliance with cookie consent, admin dashboard, and conditional analytics

Features implemented:
✅ Cookie consent banner (Accept/Reject) with localStorage storage
✅ Conditional Umami Analytics (loads only with consent)
✅ Admin dashboard at /admin/consent-logs (password protected)
✅ API endpoints for consent logging (POST/GET/DELETE)
✅ Astro DB integration with consent logging schema
✅ Production-ready Dockerfile with Node.js server adapter
✅ Node.js 20+ requirement for Astro 5.x compatibility

Files added:
- src/components/consent/CookieBanner.astro
- src/pages/api/consent/index.ts (POST/GET endpoints)
- src/pages/api/consent/[sessionId]/index.ts (DELETE endpoint)
- src/pages/admin/consent-logs.astro (admin dashboard)
- db/schema.ts (ConsentLog table schema)

Files modified:
- src/layouts/Layout.astro (CookieBanner + conditional Umami)
- astro.config.mjs (Node adapter + DB integration)
- package.json (start script, engines field, dependencies)
- Dockerfile (custom deployment with Node.js server)

Configuration:
- Umami Analytics: Conditional loading based on consent
- Admin password: 'changeme' (MUST change in production)
- Database: SQLite file (data/consent.db)
- Server: Node.js standalone adapter

Deployment:
- Docker build with SQLite runtime support
- Custom Dockerfile for Easypanel
- Start command: node dist/server/entry.mjs

Security notes:
⚠️  CHANGE ADMIN_PASSWORD before production deployment
⚠️  Enable HTTPS for secure cookie consent
⚠️  Consider server-side authentication for admin dashboard

Dockerfile

@@ -3,12 +3,23 @@ WORKDIR /app
 COPY package*.json ./
 RUN npm ci
 COPY . .
-RUN npm run build
+RUN mkdir -p ./data && ASTRO_DB_REMOTE_URL=file:./data/consent.db npx astro build --remote
 
 FROM node:20-alpine
 WORKDIR /app
 COPY package*.json ./
-RUN npm ci --production
+RUN npm install --production
 COPY --from=builder /app/dist ./dist
+COPY --from=builder /app/db ./db
+COPY --from=builder /app/data ./data
+
+RUN apk add --no-cache sqlite-libs
+
 EXPOSE 80
-CMD ["npx", "serve", "dist", "-l", "80"]
+
+ENV NODE_ENV=production
+ENV ASTRO_DB_REMOTE_URL=file:/app/data/consent.db
+ENV HOST=0.0.0.0
+ENV PORT=80
+
+CMD ["node", "dist/server/entry.mjs"]