Full ping chain via web frontend: PUS-C TC/TM codecs byte-exact against
ICD §6 vectors, ST[17] application behind the SpacecraftApplication seam,
SimulationScheduler as sole time master (ADR-0006), Spring Boot REST/WS
API + web console, determinism replay proven (SIM-TC-011), ACT-004
review-verdict gate active.

Gate record: docs/test-reports/M1-report.md (87/87 tests, pus-core
95.74% line coverage, traceability 0 findings, SIM-TC-013 manual
verdict recorded).