Odoo Release Updates

[FIX] hr: fix employee_public avatar display in mobile UI

[MOV] html_editor: move signature plugin from `sign` to `html_editor`

[MOV] sign: move signature plugin from `sign` to `html_editor`

[IMP] project: portal user in task assignees

[FIX] account_reports: make 'Returns' button of reports branch_allowed

[FIX] account_reports: Add test for horizontal groups by multi-ledger

[IMP] hr_payroll: allow modifications in work entries for reverted/refund payslips

[IMP] hr_payroll: allow modifications in work entries for reverted/refund payslips

[CLN] voip: tie ringtone to the session

[FIX] website_event_track_gantt: prevent crash when event dates is cleared

[IMP] web: increase test_load_menus_perf query count

[IMP] mail: reorder composer buttons

[IMP] mail: reorder composer buttons

[IMP] l10n_us_hr_payroll: test accrual computation

[IMP] html_editor, website: batch text node edition steps on undo/redo

[FIX] hr_holidays: show correct ValidationError when creating employee

[IMP] l10n_ph_reports: cleanup _get_report_date_to leftover stable only method

[PERF] orm: fields.Id.__get__

[IMP] hr_payroll: refine payrun related warnings for employee profile

[IMP] hr_sign: move employee signature request button to cog wheel

[REM] hr_sign: remove unnecessary method

[FIX] ai_documents_source: fix crash on clicking `Add from documents`

[PERF] point_of_sale: Optimize price computations for paid orders

[FIX] account_winbooks_import: fix tax_tag sign

[CLN] voip: remove useless `@api.model`.

[FIX] account_reports: filter from the root reports

[IMP] voip: use has_access in tests

[FIX] account: allow group by account root with full optimization

[FIX] l10n_eg_hr_payroll: fix test for 2026

[IMP] auth_timeout,base,http,web: move `checkIdentityException` logic