feat: Upgrade to Astro with full PDPA compliance

PDPA Features:
✅ Cookie consent banner
✅ Consent logging API
✅ Admin dashboard
✅ Privacy Policy
✅ Terms & Conditions

Technical:
✅ Astro 5.x + Tailwind v4
✅ Docker on port 80
✅ SQLite database
✅ 15 pages built

Ready for Easypanel deployment.

Dockerfile

@@ -1,42 +1,20 @@
 # Build Stage
 FROM node:20-alpine AS builder
-
 WORKDIR /app
-
-# Copy package files
 COPY package*.json ./
-
-# Install dependencies
-RUN npm ci
-
-# Copy source code
+RUN npm install
 COPY . .
-
-# Build Next.js project
+RUN mkdir -p data
 RUN npm run build
 
 # Production Stage
 FROM node:20-alpine
-
 WORKDIR /app
-
-# Copy package files
 COPY package*.json ./
-
-# Install production dependencies only
-RUN npm ci --production
-
-# Copy built Next.js app
-COPY --from=builder /app/.next/standalone ./
-COPY --from=builder /app/.next/static ./.next/static
-COPY --from=builder /app/public ./public
-
-# Expose port
-EXPOSE 4321
-
-# Health check
-HEALTHCHECK --interval=30s --timeout=3s --start-period=5s --retries=3 \
-  CMD node -e "require('http').get('http://localhost:4321', (r) => {process.exit(r.statusCode === 200 ? 0 : 1)})"
-
-# Start Next.js server
-CMD ["node", "server.js"]
+RUN npm install --production
+COPY --from=builder /app/dist ./dist
+COPY --from=builder /app/data ./data
+EXPOSE 80
+HEALTHCHECK --interval=30s --timeout=3s --start-period=5s --retries=3 CMD node -e "require('http').get('http://localhost:80', (r) => {process.exit(r.statusCode === 200 ? 0 : 1)})"
+ENV NODE_ENV=production ASTRO_DB_REMOTE_URL=file:/app/data/consent.db PORT=80
+CMD ["npm", "run", "preview", "--", "--host", "0.0.0.0", "--port", "80"]