Address three incoming-invoice issues:
1. Re-categorization: a categorized invoice can now be changed again (e.g.
passthrough → company expense). New "Re-categorize" button pre-fills the
triage modal from the existing disposition/customer/markup/note.
categorizeInbound is re-runnable — it unwinds any prior re-bill line
(removes the invoice line + recomputes totals) before applying the new
disposition, and refuses (INVOICE_LOCKED) when the re-bill is on an
already-issued invoice.
2. Note field: new `note` column (migration 132 — 126 is already on beta)
captured in triage and shown in the read-only view.
3. Re-bill like hours: rebill/passthrough now persist customer_account_id.
Per-event customers accumulate as PENDING items, surfaced in a new
"Pending re-bills" card and bundled into one invoice via "Bill these"
(mirrors unbilled-hours billing). Monthly/manual customers keep
auto-consolidating onto their running draft. Passthrough (durchlaufend)
can now also attach to a customer with optional markup.
Adds backend unit tests for buildInboundLineItem + isInvoiceMutable and
en/de translations (other locales fall back to English defaults).
Luca
36a8e42f90