Reset Sequences on selected period ranges

By default Odoo sequences that use date ranges only reset once a year. This module adds a new option on the sequence form so you can pick a shorter reset period.

Where it appears: - On the sequence screen (Settings area, ir.sequence), a new "range_reset" field appears right after the "use_date_range" option. It is only visible when date ranges are enabled. - The available choices are Daily, Weekly, Monthly and Yearly.

What it changes: - When a new date range is needed for a sequence, the module calculates the start and end dates according to the chosen period: weeks run Monday to Sunday, months run from the 1st to the last day, and years run from 1 January to 31 December. - It checks existing date ranges of the same sequence to avoid overlaps, adjusting the new range's start or end date so it fits next to the ranges already defined. - If no reset period is selected, the standard Odoo behaviour is kept unchanged.

This affects the ir.sequence model and its date ranges (ir.sequence.date_range). It is useful when you want document numbers to restart every day, week or month rather than only once a year.