Binary fields should have doc values enabled by default for index modes using synthetic source #107554
Description
Description
Currently binary field type by default is not stored and does not have doc values. This means that in default configuration it does not support synthetic source since synthetic source requires doc values.
Similar to #106338 we should consider enabling doc values for binary by default for specific index modes like time series. Otherwise, creating an index with binary field time series mode and all default values will always fail resulting in confusing user experience.
Related to #107549.