The FP sale report template (report_fp_sale_portrait) walks into
fp.part.catalog records, which portal users don't have ACL on -
they'd hit 'You are not allowed to access Fusion Plating - Part
Catalog' when rendering. Standard /report/pdf/ route runs as the
authed user, so the template traversal fails.
Mirror the portal_download_coc pattern: gate on _document_check_access
for the portal job (customer can only ever reach their own data),
then render the report via ir.actions.report.sudo()._render_qweb_pdf
so the QWeb template traversal bypasses ACL. Return the PDF as an
attachment with a friendly filename.
Updates _fp_group_documents to point the From-You SO Confirmation
link at this new route instead of /report/pdf/ directly.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>