Closes out the Phase 2 invoices+customers vertical. After this PR, every
write/read the dashboard does on these two resources is reachable via the
public API.
GET /api/v1/companies/{companyId}/invoices/{id}/pdf
Read-only application/pdf endpoint. Mirrors the dashboard's internal
/api/invoices/[id]/pdf so a downloaded PDF is byte-equivalent across
surfaces. Drafts render with the "faktura-utkast-<id-slice>.pdf"
filename (preview before send is a legitimate workflow); sent invoices
use "faktura-<number>.pdf"; credit notes use "kreditfaktura-<number>.pdf"
and embed the original invoice's löpnummer per ML 17 kap 22–23§
back-reference; proforma + delivery notes get their own prefixes.
Error codes: INVOICE_PDF_RENDER_FAILED (500, new),
INVOICE_SEND_COMPANY_SETTINGS_MISSING (404, reused — same condition,
same remediation).
POST /api/v1/companies/{companyId}/customers/bulk-create
Mirrors /invoices/bulk-create exactly: same `{ results, summary }`
shape, same all_or_nothing: true → 501 NOT_IMPLEMENTED contract, same
50-item cap, same sequential processing. Per-item rollback isn't
needed (customer insert is a single row), but per-item 23505 →
CUSTOMER_DUPLICATE_ORG_NUMBER failure surfaces in the results array
without echoing org_number (GDPR Art.5(1)(c): for sole traders
org_number IS the personnummer). VIES validation runs per item,
best-effort — a timeout leaves vat_number_validated=false but does
NOT fail the item.
Registry: extended EndpointDefinition.response with an optional
`contentType` field so the OpenAPI generator can emit
`format: binary` schemas for non-JSON responses. The PDF endpoint is
the first consumer; future binary endpoints (SIE export, ICS feeds)
use the same hook.
Scope catalogue: added GET .../pdf → invoices:read,
POST .../customers/bulk-create → customers:write.
Tests: 14 new integration cases (7 for PDF: sent / draft / credit-note
filename, 404, render-error 500, non-UUID 400, scope rejection; 7 for
customer bulk-create: happy path, dup-org error masking, max-50 cap,
all_or_nothing 501, dry-run preview, empty array, scope rejection).
Suite green: 3232 passing. Build + lint clean.
Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Jakob Wennberg
01e99d3220