* feat: delete last voucher, notes field, schema cache fix
Address three customer feedback items from William (wigu.se):
1. Delete last voucher per series (Fortnox model):
- New `delete_last_voucher` RPC with full safety checks (last-in-series,
open period, no references, owner/admin only)
- Session variable bypass for immutability/retention/line triggers
- Full JSONB audit trail (BFNAR 2013:2 behandlingshistorik)
- DELETE endpoint + UI with confirmation dialogs
- Storno restoration when deleting a reversal entry
2. Notes/comment field on vouchers:
- `notes` column on journal_entries (always-editable internal metadata)
- Immutability trigger updated to allow notes-only updates on posted entries
- PATCH endpoint, inline-edit UI on detail page, form textarea
3. Schema cache fix:
- NOTIFY pgrst applied to production (immediate fix)
- Retroactive migration + CLAUDE.md migration rule added
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
* fix: address Greptile review — tighten trigger, lock voucher sequence
P1: The notes-only exception in enforce_journal_entry_immutability was
too broad — it only checked 7 verifikation fields, allowing silent
mutation of correction_of_id, reverses_id, reversed_by_id, committed_at,
and user_id on posted entries. Now guards all metadata fields; only
notes and updated_at may differ.
P2: Lock voucher_sequences row FOR UPDATE before the MAX(voucher_number)
check in delete_last_voucher to serialise against concurrent
commit_journal_entry calls, preventing voucher number gaps.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Jakob Wennberg
7bf7565852