Odoo Release Updates

[IMP] mail: use discuss.channel for messaging menu

[FIX] point_of_sale: serial refund

[IMP] l10n_tr_nilvera_*: add tax office in e-dispatch XML

[FIX] pos_appointment: show appointment type name again

[IMP] project_enterprise: group project sharing Gantt view by task title

[IMP] html_builder, website: use Bootstrap shadow class in shadow option

[IMP] website: add controls to edit Bootstrap shadow classes

[FIX] mail: backport s_showcase separator fix from web_editor

[FIX] sale_gelato: remove 'upgrade_boolean' from Gelato setting

[IMP] l10n_in_hr_payroll: user writeable fields

[IMP] helpdesk: user writeable fields

[IMP] hr_homeworking: user fields

[FIX] test_10n_be_hr_payroll_account: employee job change tour

[IMP] core: adapt gc settings for python 3.13-14

[IMP] mail: use discuss.channel model in getRecentChatPartnerIds

[FIX] l10n_es_edi_verifactu: remove `RedirectWarnings` causing the cron to fail

[REM] l10n_fr_pos_cert: remove obsolete migration deprecated POS sequence fields

[IMP] pos_hr: prevent not logged in employee to go to backend

[FIX] base,hr: adapt image size to field count

[FIX] test_discuss_full_enterprise: close AI chat window should not crash

[IMP] ai: enable copy message text on desktop

[IMP] account: Normalize factors in _distribute_delta_amounts_smoothly

[FIX] pos_appointment: hide default button in form dialog

[FIX] pos_appointment: use total_capacity_reserved

[FIX] account_online_synchronization: Set Journal company

[FIX] payment: provider should be published

[FIX] stock_barcode_mrp*: improve barcode UI in dark mode for better visibility

[FIX] hr_work_entry: Fix work entry type domain in multiselect

[FIX] payment_paypal: show paypal button on mobile checkout

[FIX] website: prevent URL customization when no editable slug in the URL