Input patterns (partner_autocomplete)

This is a technical glue module that combines two other modules: one that adds input patterns (regular expressions) to fields, and one that provides the partner autocomplete widget (the suggestion dropdown used on contact fields like VAT).

Without this module, a validation pattern defined on a field would not be enforced when that field uses the autocomplete widget. With it installed, the pattern is passed to the autocomplete component, so the same validation rule applies.

What changes in Odoo: - The base model now recognises a pattern attribute on text fields and exposes it through the field description, so the web client can use it. - The partner autocomplete widget template is extended to receive and apply the pattern. - A demo view shows the pattern [A-Z]{2}[0-9]+ on the VAT field of the contact form, meaning the VAT must start with two uppercase letters followed by digits.

Where it appears: it affects the contact form (res.partner) and any other screen using the partner autocomplete widget. There are no new menus or reports.

Business rules: the only automatic behaviour is input validation according to the pattern defined on the field. No computations, emails, or scheduled jobs are added. The module installs automatically when both dependencies are present.