Enhancement: Log matched floor rule during requestBidsHook for model training

[pm-kapil-tuptewar]

Currently, the Price Floor module injects floor-specific data into the bid object using two hooks: requestBidsHook and addBidResponseHook.

On requestBidsHook,
it appends fields such as model_version, model_weight, fetch_status, floor_provider, location, and several others https://github.com/prebid/Prebid.js/blob/master/modules/priceFloors.ts#L462C7-L462C21

On addBidResponseHook,
it adds additional fields like floor_value, floor_rule, floor_rule_value, and related parameters https://github.com/prebid/Prebid.js/blob/master/modules/priceFloors.ts#L965

The challenge is that addBidResponseHook is only triggered if at least one bidder returns a bid. Since the matched rule is important for model training, it would be more reliable to log these values during requestBidsHook. This way, the model can learn which floors are being sent to SSPs and why they might not be bidding on them.

[patmmccann]

it seems we can expoise a floor to the analytics adapter but not gaurantee it is the same floor the bidder used bc we do not know exactly with which parameters the bidder called getfloor, but the analytics module could call it with * media format, or cycle through the formats.

[pm-kapil-tuptewar]

Thanks @patmmccann, agree its upto adapter to pass any of the matching rule.