chore(docker): trim verbose comment on build-time env args

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

Author: waleedlatif1

docker/app.Dockerfile

@@ -69,13 +69,7 @@ ENV NEXT_TELEMETRY_DISABLED=1 \
     VERCEL_TELEMETRY_DISABLED=1 \
     DOCKER_BUILD=1
 
-# Provide dummy values during image build so module-eval-time validators
-# (e.g. @sim/db connection init, getBaseUrl() in lib/core/utils/urls) don't
-# crash next build during page-data collection. Runtime environments must
-# override both. NEXT_PUBLIC_APP_URL is intentionally NOT read by
-# next.config.ts at build time — response CORS is computed at request time
-# in proxy.ts via getEnv(), so the localhost fallback below cannot leak
-# into production CORS response headers.
+# Dummy values so next build can evaluate modules. Override at runtime.
 ARG DATABASE_URL="postgresql://user:pass@localhost:5432/dummy"
 ENV DATABASE_URL=${DATABASE_URL}