feat(recurring): carry dimension bags on recurring invoice schedules (#1272)

Schedules and their template items now store {sie_dim_no: code} bags
(default_dimensions / dimensions), and the cron generator copies them
onto every spawned invoice + item, so recurring invoices book with the
same projekt/kostnadsstalle tags a manual invoice would. Wired through
the web CRUD routes, the staged-operation executors, and the MCP
create/update/list schedule tools (resolve-don't-select, resolutions
echoed in the preview).

Migration 20260728090000 adds the two jsonb columns (same shape+CHECK
as invoices/invoice_items, PR7 producer parity).

Co-authored-by: Claude Fable 5 <noreply@anthropic.com>

types/index.ts

@@ -1242,6 +1242,10 @@ export interface RecurringInvoiceSchedule {
   our_reference: string | null
   notes: string | null
 
+  // Dimension bag {sie_dim_no: code} copied onto every generated invoice's
+  // default_dimensions at spawn time.
+  default_dimensions?: Record<string, string>
+
   auto_send: boolean
   status: RecurringInvoiceScheduleStatus
 
@@ -1269,6 +1273,9 @@ export interface RecurringInvoiceScheduleItem {
   unit_price: number
   // null = inherit customer's default VAT rate at spawn time
   vat_rate: number | null
+  // Per-item bag copied onto the generated invoice_items.dimensions; merges
+  // over the schedule default on that item's revenue line.
+  dimensions?: Record<string, string>
   created_at: string
 }