fix(migrations): re-issue the invoice payee migrations skipping migration-reset source companies (#2260)

* fix(migrations): re-issue the invoice payee migrations skipping migration-reset source companies

#2233 merged, but its first migration (20260903150000) failed on prod at
the backfill's INSERT into invoice_payee_defaults:

  ERROR: Archived migration reset source records are immutable (P0001)

The insert fires the SECURITY DEFINER mirror into company_settings, and
one of the companies with a legacy payment map is a migration-reset
source, whose rows are immutable by trigger. The migration rolled back as
a whole, prod has neither table nor column, and every migration merged
after it is queued behind the failure.

Same fix as #2249 used for the country backfill: both entry branches of
the backfill now skip companies present in company_migration_resets, and
both files are re-issued under fresh versions (20260904010000 and
20260904011000) so Supabase applies them in order after everything that
landed today. The failed versions never applied on prod, so no orphan;
staging applied them by hand and its schema_migrations rows must be
renamed to match (see DECISIONS.md).

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

* fix(migrations): make the re-issued payee migrations rerunnable

pg-upgrade builds from main, where the first issue (20260903150000)
already ran, then applies the re-issued file on top: the composite UNIQUE
constraint already existed. Every statement in both files is now guarded
(constraint DO blocks, CREATE TABLE/INDEX IF NOT EXISTS, DROP POLICY /
DROP TRIGGER IF EXISTS before each CREATE), so staging and the preview
branches that applied the first issue take the re-issue cleanly too, and
prod, which never applied it, is unaffected.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

---------

Co-authored-by: Claude Fable 5.1 <noreply@anthropic.com>

types/index.ts

@@ -644,7 +644,7 @@ export interface BankAccount {
 export type CashAccountSource = 'enable_banking' | 'manual' | 'sie_import'
 
 /**
- * What a customer pays to. Lives on cash_accounts (migration 20260903150000)
+ * What a customer pays to. Lives on cash_accounts (migration 20260904010000)
  * and is the single source for the payee printed on customer invoices; the
  * per-currency map on company_settings is a trigger-maintained mirror of the
  * default account per currency.
@@ -1363,7 +1363,7 @@ export interface Invoice {
   stripe_payment_link_id?: string | null
   // Per-invoice opt-out for automatic payment link creation on send.
   payment_link_auto?: boolean
-  // Per-invoice payee (migration 20260903193000): the bank account this
+  // Per-invoice payee (migration 20260904011000): the bank account this
   // invoice asks the customer to pay to (null = the per-currency default),
   // and its payee fields frozen when chosen and refreshed at issue. Issued
   // invoices print from payment_details; the resolver falls back to the