Odoo Release Updates

[IMP] helpdesk, *: improve portal chatter copywriting

[FIX] sign: respect signer email when sending notifications

[PERF] tools: compress pdf after merge

[FIX] sign: restore 'waiting for me' filter behavior

[FIX] sign: discard changes without flicker

[FIX] sign: prevent one-shot requests and obsolete versions from appearing as archived templates

[REF] *: rename get_formview_action to get_record_default_action

[FIX] sign: prevent cc partner on sign.send.request wizard update the template

[FIX] sign: wrap long text in textarea and stamp fields

[FIX] sign: catch role conflicts during batch action creation

[FIX] sign: allow signing when readonly date field is present

[FIX] sign: allow batch download for documents with identical subjects

[IMP] sign: request refusal flow

[REF] *: run rendering context migration script on inline xml

[IMP] sign: display read-only and alignment fields for date field in form view

[FIX] sign: use unique item roles for demo templates

[IMP] test_lint{,_enterprise}, *: Index `Many2one` fields in `related` fields

[FIX] sign: preserve PDF structure when adding signature overlays

[FIX] sign: prevent UI break when roles have 'assign to' set

[REF] various: remove useless 'tracking_disable' / 'mail_notrack' in tests

[FIX] sign: prevent crash when fetching deleted sign request

[FIX] sign: fix certificate accuracy and Sign Now flows, and confirmation email

[FIX] sign: incorrect document download lookup

[FIX] sign: use datepicker format when auto-filling date fields

[IMP] sign: add two-way sync for linked fields

[REF] *: run rendering context migration script on inline xml

[IMP] whatsapp_sign: enable multi-company WhatsApp support and template configuration

[FIX] sign: enforce required fields for signature roles in server actions

[FIX] sign: enhance templates UI, request flows, and fix dialog bugs

[FIX] sign: hide "Details" button in signing mode