feat: split web and scraper into separate Docker images

- Dockerfile: replace single runner stage with web + scraper named targets
  - web: Next.js standalone only — no playwright, tsx, or scripts
  - scraper: scripts/lib/node_modules/playwright only — no Next.js output
- docker-compose.yml: each service pulls its dedicated image tag
- .gitea/workflows/deploy.yml: build both targets on push to main
- lib/db.ts: STALE_AFTER_MS reads PARK_HOURS_STALENESS_HOURS env var (default 72h)
- lib/park-meta.ts: COASTER_STALE_MS reads COASTER_STALENESS_HOURS env var (default 720h)

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Dockerfile

@@ -1,4 +1,4 @@
-# Stage 1: Install all dependencies (dev included — scripts need tsx + playwright)
+# Stage 1: Install all dependencies (dev included — scraper needs tsx + playwright)
 FROM node:22-bookworm-slim AS deps
 RUN apt-get update && apt-get install -y --no-install-recommends python3 make g++ && \
     rm -rf /var/lib/apt/lists/*
@@ -11,47 +11,60 @@ FROM deps AS builder
 COPY . .
 RUN npm run build
 
-# Stage 3: Production runner
-FROM node:22-bookworm-slim AS runner
+# ── web ──────────────────────────────────────────────────────────────────────
+# Minimal Next.js runner. No playwright, no tsx, no scripts.
+# next build --output standalone bundles its own node_modules (incl. better-sqlite3).
+FROM node:22-bookworm-slim AS web
 WORKDIR /app
 
 ENV NODE_ENV=production
 ENV NEXT_TELEMETRY_DISABLED=1
-# Store Playwright browser in a predictable path inside the image
-ENV PLAYWRIGHT_BROWSERS_PATH=/app/.playwright
 
-# Create non-root user before copying files so --chown works
 RUN addgroup --system --gid 1001 nodejs && \
     adduser --system --uid 1001 nextjs
 
-# Copy Next.js standalone output
 COPY --from=builder --chown=nextjs:nodejs /app/.next/standalone ./
 COPY --from=builder --chown=nextjs:nodejs /app/.next/static ./.next/static
 COPY --from=builder --chown=nextjs:nodejs /app/public ./public
 
-# Copy scripts + library source (needed for npm run discover/scrape via tsx)
-COPY --from=builder --chown=nextjs:nodejs /app/scripts ./scripts
-COPY --from=builder --chown=nextjs:nodejs /app/lib ./lib
-COPY --from=builder --chown=nextjs:nodejs /app/package.json ./package.json
-COPY --from=builder --chown=nextjs:nodejs /app/tsconfig.json ./tsconfig.json
-
-# Replace standalone's minimal node_modules with full deps
-# (includes tsx, playwright, and all devDependencies)
-COPY --from=deps --chown=nextjs:nodejs /app/node_modules ./node_modules
-
-# Install Playwright Chromium browser + all required system libraries.
-# Runs as root so apt-get works; browser lands in PLAYWRIGHT_BROWSERS_PATH.
-RUN npx playwright install --with-deps chromium && \
-    chown -R nextjs:nodejs /app/.playwright
-
-# SQLite data directory — mount a named volume here for persistence
 RUN mkdir -p /app/data && chown nextjs:nodejs /app/data
 VOLUME ["/app/data"]
 
 USER nextjs
-
 EXPOSE 3000
 ENV PORT=3000
 ENV HOSTNAME="0.0.0.0"
-
 CMD ["node", "server.js"]
+
+# ── scraper ───────────────────────────────────────────────────────────────────
+# Scraper-only image. No Next.js output. Runs on a nightly schedule via
+# scripts/scrape-schedule.sh. Staleness windows are configurable via env vars:
+#   PARK_HOURS_STALENESS_HOURS  (default: 72)
+#   COASTER_STALENESS_HOURS     (default: 720 = 30 days)
+FROM node:22-bookworm-slim AS scraper
+WORKDIR /app
+
+ENV NODE_ENV=production
+ENV PLAYWRIGHT_BROWSERS_PATH=/app/.playwright
+
+RUN addgroup --system --gid 1001 nodejs && \
+    adduser --system --uid 1001 nextjs
+
+COPY --from=builder --chown=nextjs:nodejs /app/scripts ./scripts
+COPY --from=builder --chown=nextjs:nodejs /app/lib ./lib
+COPY --from=builder --chown=nextjs:nodejs /app/tests ./tests
+COPY --from=builder --chown=nextjs:nodejs /app/package.json ./package.json
+COPY --from=builder --chown=nextjs:nodejs /app/tsconfig.json ./tsconfig.json
+
+# Full node_modules — includes tsx, playwright, better-sqlite3, all devDeps
+COPY --from=deps --chown=nextjs:nodejs /app/node_modules ./node_modules
+
+# Install Playwright Chromium + system libraries (runs as root, then fixes ownership)
+RUN npx playwright install --with-deps chromium && \
+    chown -R nextjs:nodejs /app/.playwright
+
+RUN mkdir -p /app/data && chown nextjs:nodejs /app/data
+VOLUME ["/app/data"]
+
+USER nextjs
+CMD ["sh", "/app/scripts/scrape-schedule.sh"]