fix(docker): make runner images actually resolvable + standalone layout

- api/worker: overlay package node_modules onto root (dotenv etc.), copy
  @fleetforge/shared at the workspace path the pnpm symlink expects
- web: standalone output nests under apps/web (monorepo outputFileTracingRoot);
  run server.js from WORKDIR /app/apps/web with static/public at that level
- deploy.sh: mount nginx config via named volume ff-nginx-conf (host path /
  cfg does not exist on the host inside the deployer)

infrastructure/docker/Dockerfile.worker

@@ -19,8 +19,9 @@ RUN pnpm --filter @fleetforge/worker build
 FROM node:20-alpine AS runner
 WORKDIR /app
 RUN addgroup --system --gid 1001 nodejs && adduser --system --uid 1001 fleetforge
+COPY --from=builder /app/node_modules ./node_modules
+COPY --from=builder /app/apps/worker/node_modules ./node_modules
 COPY --from=builder /app/apps/worker/dist ./dist
 COPY --from=builder /app/apps/worker/package.json ./
-COPY --from=builder /app/node_modules ./node_modules
 USER fleetforge
 CMD ["node", "dist/index.js"]