action-param-inline-lookup-reference.md

@objectstack/spec	patch

feat(spec): let an inline lookup action param declare its reference target (#3405)

ActionParamSchema had no way to name the object an inline record-picker param should search. Authors reasonably wrote the same key the field schema uses — { name: 'inspector', type: 'lookup', reference: 'sys_user' } — and the schema stripped it as an unknown key, without an error. Downstream, the param dialog saw a picker with no target and degraded it to a "paste the record id (UUID)" text input. The authored intent was dropped silently and the user was handed a control that a human cannot reasonably operate.

• Added reference to ActionParamSchema, spelled to match FieldSchema.reference so one spelling works in both places. It sits with the existing inline widget config (multiple / accept / maxSize), which had covered the file/image params but not the picker ones.
• A lookup / master_detail param declared inline with no reference is now a parse-time error pointing at the missing key, instead of degrading at render time. Field-backed params are unaffected: they inherit the target from the referenced field's metadata, which is not visible at parse time.