Retrieve minimum bid details for category

List of minimum bid values determined through a hierarchical resolution process during the calculation of the min-bid for a campaign. The system sequentially evaluates each defined level of specificity, starting at the category level. If no value exists at this level, the system falls back to the catalog level. In the absence of a catalog-level bid, it further falls back to utilize the value defined at the namespace level. This structured approach ensures that the most specific and applicable bid is identified and applied.