[19.0][MIG] automation_oca: Migration to 19.0

[BogatovT]

Migration of automation_oca to 19.0

Migrates automation_oca from 18.0 to 19.0, following the
OCA migration guide.

Verified on a local Odoo 19.0 instance: clean install, module test suite green
(Python + JS/hoot in a headless browser), and the automation designer working
end-to-end (mail step, behaviour-triggered child steps, server-action step, cron
progression and statistics).

Framework changes applied

• Security: res.groups.category_id → privilege_id (new res.groups.privilege
  model); groups_id → group_ids on menus / users / views.
• odoo.osv.expression.AND → odoo.fields.Domain.AND.
• read_group(...) → _read_group(...) (returns tuples; m2o groupby yields a
  recordset; a :day groupby on a datetime field returns a tz-aware datetime,
  which required reworking the step sparkline bucketing).
• Query.select() now returns an SQL object; query.groupby set via
  SQL.identifier(...).
• self._cr / self._uid → self.env.cr / self.env.uid;
  auto_join → bypass_search_access.
• _search override now forwards the new keyword-only args
  (active_test, bypass_access).
• werkzeug.urls.url_join → odoo.tools.urls.urljoin
  (url_parse kept, still used by core link_tracker).
• OWL frontend: many2one field values record.data.x[0] → record.data.x.id;
  useOpenX2ManyRecord withParentId → isMany2Many; the custom kanban compiler
  is now injected via rendererProps.Compiler (the static KanbanRecord.Compiler
  is no longer read); web.KanbanView.Buttons is empty in 19, so the upload button
  is now xpath-injected on . (as core account does); owl global →
  @odoo/owl imports.

Runtime fixes (not visible at install time, caught by the test suite)

• BaseModel._where_calc was removed → _search(domain, bypass_access=True) in
  _get_automation_records_to_create (the record-enrollment query).
• mail.compose.message.record_name field was removed → dropped from the composer
  values in _run_mail.
• Test-mode detection changed: threading.current_thread().testing is no longer
  set in 19 → not odoo.modules.module.current_test (matching core mail_mail.py),
  otherwise auto_commit=True triggered a forbidden cr.commit() inside tests.

Tests

• Python: 0 failed, 0 errors.
• JS/OWL (hoot, headless Chrome): suite succeeded (graph widget, step-tree
  hierarchy/sort, record click, add-child button).
• test_automation_mail now inherits core's MockLinkTracker mixin, since in 19
  the link tracker fetches the page title over HTTP when shortening links (blocked
  in tests).
• Skipped: TestAutomationDate — it relies on odoo-test-helper, which is not
  yet compatible with 19.0 (it uses the removed MetaModel.module_to_models and the
  old Registry.load(cr, package) / setup_models API). The import is guarded and
  the test is @unittest.skipUnless-skipped with an explicit reason; it can be
  re-enabled once the helper is ported.