Relay main compatibility, retained bodies and watchdog lock regression

Source/evidence release for257bfe8. Incorporates main20e599a6 (node0.1.2) and merged core695a8ad6 (core0.1.3), preserving VERIFIED terminology and the bounded/authenticated/retained relay implementation. Resolves the PR merge conflicts. Fixes a modeled watchdog race by reading the current stack and rebuild plan inside the runtime lock:3 deterministic tests fail before the fix and pass after it; all52 selected Docker tests pass. Includes source hashes, failure/success logs and CPU2/RAM4GiB/no-GPU execution metadata. Public www/apex POST still returns HTML404 Cannot POST at10:12:59UTC. This is NOT a public-server deployment, npm publication or successful public Live test. Active DART8 training and model containers were not restarted.