Three unguarded blocking calls caused CI to hang until the 60-min timeout:
- dagger query prune steps had no timeout; || true only catches errors, not hangs
- docker info (added in d905cd6) had no timeout if Docker socket is unresponsive
- until portfile loop in check-dagger spun forever if otel-receiver.py crashed
Fixes: timeout 120 on all dagger query prune calls, timeout 30 on docker info,
and a kill -0 process-alive guard on the portfile until loop with fallback.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
- Add -qq to apt-get update/install in Dagger toolchain to suppress
verbose package-list output (hundreds of lines on cold cache)
- Wrap sdkmanager in silent-on-success pattern — only shows output
on failure, like the build_runner and flutter pub get steps
- Set debug = warning in stunnel config to suppress LOG5 (info/notice)
startup lines while keeping LOG4 (warning) and above
- Add org.gradle.welcome=never to android/gradle.properties to
suppress the "Welcome to Gradle N.NN!" banner
- Filter SKIPPED Gradle tasks, Gradle Daemon startup messages, and
gcloud support-page promo lines in run_firebase_test.sh
Errors and warnings are preserved in all cases.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Connection drops consistently at ~50s suggest NAT/firewall idle timeout.
Keepalive probes every 10s on the remote side prevent the RST.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
