New /my/account_summary route. Splits posted account.move into
Invoices (out_invoice) / Credit Memos (out_refund) / Statements
(V1 placeholder). Open Balance helper sums amount_residual across
open invoices for the partner's commercial tree.
Search filters name OR ref (customer PO). Sort options: date desc/asc,
amount desc/asc. Filter pills: open / closed / all.
Tests cover the tab partitioning, the open-balance sum, and the
search behaviour. Helpers use commercial_partner.env so they work
in both HTTP context and unit tests without requiring request.env.
Test scaffolding uses fp_from_so_invoice=True context flag and
invoice_payment_term_id to satisfy the fusion_plating_jobs and
fusion_plating_invoicing create/post gates.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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