partner_deduplicate_by_website

Extend contact deduplication to match partners sharing the same website address.

Key Features

base.partner.merge.automatic.wizard: Adds a Website grouping option so deduplication can detect partners with identical website values.
base.partner.merge.automatic.wizard: Ensures website-based deduplication only considers partners whose website field is filled to avoid empty-value matches.
base.partner.merge.automatic.wizard: Displays the website on deduplication candidate lines to review website-based matches.