The handleReallocation function in the NudgePointsCampaigns contract does not validate whether the specified campaign exists before proceeding with operations. This oversight allows interaction with non-existent campaigns, potentially leading to  silent failures.
In the NudgePointsCampaigns contract, when the handleReallocation function is called with a non-existent campaign ID, it retrieves a default empty Campaign struct with zero values. The function then proceeds with operations on this empty struct instead of reverting.
The absence of an existence check means:
In NudgePointsCampaigns.sol, the handleReallocation function loads the campaign without verifying its existence:
Add a validation check at the beginning of the function to ensure the campaign exists:
This check uses the same pattern established in other parts of the codebase, where a campaigns existence is determined by its targetToken being non-zero.
handleReallocation
