feat: project bounded execution receipts

[Pigbibi]

Summary

• accept an optional, strictly bounded execution receipt from an eligible runtime report
• verify receipt identity, digest and timestamp against the report before projecting it
• show the minimal outcome and broker-confirmation state on the read-only console

Safety

• no broker, account, order ID, price, quantity, position, capital or credential leaves the runtime report
• old reports remain compatible and show missing receipt; receipt presence does not change parked or grant paper/canary/live authority
• pairs with QuantPlatformKit #496, but this projection remains safe before platform producers are upgraded

Validation

• python3 -m unittest discover -s python/tests -v (296 passed)
• Worker and generated asset syntax checks
• node --experimental-default-type=module tests/strategy_switch_worker_validation.mjs