# fusion_accounting_migration — Cursor / Claude Context

## Purpose
Transitional sub-module that helps clients move from Odoo Enterprise accounting
to Odoo Community + Fusion Accounting without losing data.

## What it does
- Safety guard: blocks uninstall of Enterprise accounting modules until the
  migration wizard has run (per-module flag in ir.config_parameter)
- Migration wizard: shell that other fusion sub-modules extend with per-feature
  migration logic (Phase 0 ships only the shell)

## Critical
- The safety guard overrides `button_immediate_uninstall` AND `module_uninstall`
  on `ir.module.module`. Both paths must be guarded — UI uninstall, CLI uninstall,
  and API uninstall all go through one or the other.
- Each fusion feature sub-module that replaces an Enterprise feature MUST extend
  the migration wizard's `action_run_migration` to add its own migration step
  AND set the corresponding `fusion_accounting.migration.<module>.completed`
  flag to True after running.