account_move_tier_validation

Purpose

Enforces tier-based validation on account moves before they can be posted.

Features

account.move: Integrates the base tier validation workflow into invoices, bills, refunds and credit notes so posting requires the configured approvals.
account.move: Hides the Post action whenever a move still needs validation to prevent bypassing approvals.
account.move: Allows updates to totals, payment indicators and sending information during validation without invalidating the approval state.
tier.definition: Includes account moves among the models that can be targeted by tier definitions.
account.move: Adds search filters for approval requests (needs review, validation not started, in progress, validated) to help reviewers manage their queue.