Add support for custom block timestamps during manual block production
Add support for custom block timestamps during manual block production: a task in LegoFlow-SWE (Harbor dataset). Symptom Integration tests that rely on the TIME opcode need precise control over block timestamps. Today the produce blocks client method only accepts blocks to produce and the node…
The task
**Symptom** Integration tests that rely on the `TIME` opcode need precise control over block timestamps. Today the `produce_blocks` client method only accepts `blocks_to_produce` and the node assigns timestamps automatically, preventing deterministic control over the time contracts see.
Part of Lego-X/LegoFlow-SWE.