Putaway strategies on product form view

This module adds a Putaway strategies section to the Inventory tab of the product form. It is visible to users with the stock manager role and, for the editable product rules, to users with advanced location management enabled.

On a product template you can add lines that say which putaway strategy and fixed location apply to that product, and optionally to a specific variant. A note reminds you that product rules are applied before category rules, and that leaving the product field empty applies the rule to all variants.

Below that, a read-only list shows the putaway strategies that come from the product's category and its parent categories. The module automatically picks the most specific category match for each strategy, so you can see which category rule will actually be used.

On a product variant form, the same section lets you add variant-specific putaway lines.

The module also changes how putaway rules are looked up: when a rule is searched for a specific variant, it can fall back to a rule defined on the product template without a variant. A one-time update fills the product template link on existing putaway lines.