feat(console): distinguish monitoring from execution proof

[Pigbibi]

Summary

• derive a read-only execution observation from lifecycle monitoring
• label every lifecycle record as having no collected order/fill evidence
• make the console and lifecycle contract explicit that a green heartbeat is not a broker execution receipt

Safety

• no broker, account, order, funding, or runtime-target configuration changes
• no source lifecycle contract or publishing workflow changes

Validation

• python3 -m unittest discover -s python/tests -v (294 passed)
• Worker and generated asset syntax checks
• node --experimental-default-type=module tests/strategy_switch_worker_validation.mjs