lightflow-control-merge

# LightFlow Control Merge Use `lightflow.control_merge` to combine two JSON values. ## Workflow - Workflow id: `lightflow.control_merge` - Runtime ownership: this workflow crate owns its public `execute()` entry and exposes it through the `lightflow-control-merge-runner` package binary. - Host engine: `package.command.v1`; discovery, help, and plan do not execute package source. - Input values are validated against their declared JSON types without string coercion. - Runtime: `lightflow.control.merge`. - Inputs `a` and `b`: optional JSON values. - Input `mode`: `first_non_null`, `object`, or `array`; default `first_non_null`. - Outputs `value` and `selected`. ## Usage ```bash lfw run lightflow.control_merge -i a='{"prompt":"cat"}' -i b='{"seed":1}' -i mode=object ``` ## API Usage Start `lfw serve`, then call the workflow through the shared HTTP run contract. Adjust `inputs` to match the workflow contract above. ```bash curl -sS -X POST http://127.0.0.1:5174/workflows/lightflow.control_merge/run \ -H 'content-type: application/json' \ -d '{"inputs":{}}' ```