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accounted/lib/auth
Jakob Wennberg 17caf9d80a feat(mcp): article-aware invoice updates with gnubok_get_invoice round trip and rebooking preview (#1993)
* feat(mcp): article-aware invoice updates with gnubok_get_invoice round trip and rebooking preview

gnubok_update_invoice items are a FULL REPLACE, had no article fields, and
no MCP tool returned invoice lines, so a quantity fix rebuilt from memory
wrote article_id/revenue_account null and reverted vat_rate to the customer
default: revenue silently moved from the article account (3041) to the
VAT-derived default, invisible in the approval preview.

- gnubok_get_invoice (invoices:read, search-only): header plus every line
  with article_id, revenue_account, vat_rate, dimensions, editable_draft
- gnubok_update_invoice lines accept article_id with the same prefill and
  default-set VAT adoption guard as create; permitted-set VAT gate at
  staging; preview carries the new lines' effective booking and a snapshot
  of the lines being replaced
- commitUpdateInvoice scope-checks staged article ids like create does
- OperationPreview: update_invoice preview (current vs new lines, header
  diffs, totals); create_invoice lines show VAT rate and posting account
- invoicing skill points at the read-before-replace round trip

Closes #1642

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01FkUfWtuFCUkNtRAgMQCse2

* fix(mcp): use roundOre for update-invoice preview totals so the ore ratchet stays at baseline

The preview-building code in gnubok_update_invoice introduced five naive
Math.round(x * 100) / 100 occurrences, tripping check:guards
(naive-ore-round 627 vs baseline 622) and failing Core Build on PR #1993.
roundOre from @/lib/money is the sanctioned helper and was already
imported in this file.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01FkUfWtuFCUkNtRAgMQCse2

* fix(mcp): make the invoice round trip lossless for text, ROT/RUT and accrual lines

Skeptic review of #1993 found three round-trip breaks for web-created
drafts edited via MCP (the exact silent-loss class issue #1642 reports):

- Text rows: the update pre-gate and resolveInvoiceLineFromArticle
  rejected quantity <= 0 before looking at line_type, so any draft with
  a free-text spacer row could not be edited at all, and the natural
  agent recovery (drop the row and retry the FULL REPLACE) silently
  deleted invoice content. Text rows are now exempt from the
  quantity/description/unit/price gates (CreateInvoiceItemSchema
  parity), normalized to the zeroed stored shape, excluded from the
  staged totals and the VAT gate (commitCreateInvoice billableItems
  parity), and line_type is declared on both the create and update item
  schemas.

- ROT/RUT: gnubok_get_invoice omitted housing_designation,
  apartment_number and brf_org_number, so an items replace on a ROT
  draft either failed AFTER approval ('Fastighetsbeteckning krävs för
  ROT-avdrag') or, for a schema-conformant agent, silently stripped the
  avdrag and the stored personnummer. The three property columns
  (property identifiers, never the personnummer ciphertext) are now
  returned per line, the deduction fields are declared on the update
  item schema, deduction_type rides on the current_items snapshot and
  the new-lines preview, and a staging-time completeness gate
  (arbetstyp/timmar via validateDeductionLines, fastighetsbeteckning
  for ROT, personnummer availability on the invoice or the individual's
  kundkort) surfaces the failure to the agent instead of the approver.

- Declared-schema gap: revenue_account and the accrual fields were
  accepted on pass-through but undeclared, so a schema-conformant agent
  dropped a manual posting-account override or a periodisering on
  pass-back. They are now declared on the update item schema
  (revenue_account also on create; create deliberately does NOT declare
  deduction/accrual fields because commitCreateInvoice drops them), and
  the approval preview shows ROT/RUT-avdrag and the periodisering
  period per line.

tools/list ceiling check after the two new create-schema properties:
63337 of 63400.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01FkUfWtuFCUkNtRAgMQCse2

---------

Co-authored-by: Jakob Wennberg <311770904+jakobwennberg-oss@users.noreply.github.com>
Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
2026-08-27 22:27:02 +02:00
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