Stock Inventory Valuation Pivot

This module extends the existing stock inventory valuation report in Odoo by adding a pivot table view to it.

Where it appears: - The stock valuation report action (stock_account.stock_valuation_layer_action) now offers a pivot view alongside the existing list and form views. - The pivot table shows products as rows and uses value and quantity as the measures, so users can see totals and compare products at a glance.

What it adds: - A new search filter called "Date Before" on the valuation report, based on the record creation date, so users can narrow the report to entries created before a chosen date. - The pivot view itself, built on the stock valuation layer records (stock.valuation.layer).

What it touches: - It depends on the Inventory Accounting module (stock_account) and only changes the presentation of the valuation report; it does not add new models or change how valuation is calculated.

No automatic checks, emails, scheduled jobs or business rules are added by this module. It is purely a reporting and analysis enhancement.