Supp/invoice bfl errors (#390)

* feat(accounting): update accounting method validation and messaging for aktiebolag and enskild firma

* Remove AI subsystem and related code

- Deleted AI proposals and requests persistence logic from `lib/ai/proposals/persist.ts`.
- Removed re-validation logic for proposals in `lib/ai/proposals/re-validate.ts`.
- Cleaned up schemas related to AI flows in `lib/api/schemas.ts`.
- Removed AI-related fields from bookkeeping engine in `lib/bookkeeping/engine.ts`.
- Eliminated AI event types from `lib/events/types.ts`.
- Updated tests to reflect the removal of AI-related functionality in `lib/extensions/__tests__/sectors.test.ts`.
- Adjusted initialization logic in `lib/init.ts` to exclude AI proposal handler registration.
- Cleaned up transaction ingestion logic in `lib/transactions/ingest.ts` to remove AI flow checks.
- Updated helper functions in `tests/helpers.ts` to remove AI-related settings.
- Removed AI-related types and interfaces from `types/index.ts`.
- Added migration script to drop AI-related tables and settings from the database.

* fix(migrations): ensure foreign key constraint is dropped before removing AI tables

* feat(invoice-inbox): implement deterministic invoice field extraction and inbox provisioning

- Added `extract-invoice-fields.ts` for extracting fields from PDF invoices using regex and pdfjs-dist, replacing the previous AI classifier.
- Introduced `inbox-provisioning.ts` to manage company inbox addresses and rotation of inboxes using Supabase RPCs.
- Created `resend-inbound.ts` for handling inbound email events and attachments via the Resend API.
- Defined the extension manifest for the invoice inbox, specifying required environment variables and descriptions.
- Migrated database schema to remove AI-related columns and tighten the status enum in `invoice_inbox_items`.

* feat(invoice-inbox): remove AI-specific columns and tighten status enum

* fix(skattekonto): remove manual entry creation reference from transaction input

* fix(schemas): remove accounting method validation for aktiebolag in UpdateSettingsSchema

lib/extensions/_generated/enabled-extensions.ts

@@ -8,4 +8,5 @@ export const ENABLED_EXTENSION_IDS: ReadonlySet<string> = new Set([
   'mcp-server',
   'cloud-backup',
   'skatteverket',
+  'invoice-inbox',
 ])

lib/extensions/_generated/extension-list.ts

@@ -7,6 +7,7 @@ import { ticExtension } from '@/extensions/general/tic'
 import { mcpServerExtension } from '@/extensions/general/mcp-server'
 import { cloudBackupExtension } from '@/extensions/general/cloud-backup'
 import { skatteverketExtension } from '@/extensions/general/skatteverket'
+import { invoiceInboxExtension } from '@/extensions/general/invoice-inbox'
 
 export const FIRST_PARTY_EXTENSIONS: Extension[] = [
   enableBankingExtension,
@@ -16,4 +17,5 @@ export const FIRST_PARTY_EXTENSIONS: Extension[] = [
   mcpServerExtension,
   cloudBackupExtension,
   skatteverketExtension,
+  invoiceInboxExtension,
 ]

lib/extensions/_generated/sector-definitions.ts

@@ -90,5 +90,20 @@ export const EXTENSION_DEFINITIONS: Record<string, ExtensionDefinition[]> = {
           "description": "Skicka momsdeklaration direkt till Skatteverket via BankID.",
           "longDescription": "Anslut till Skatteverket med BankID och skicka din momsdeklaration direkt från gnubok. Spara utkast, validera, lås och signera — utan att lämna appen."
     },
+    {
+          "slug": "invoice-inbox",
+          "name": "Dokumentinkorg",
+          "sector": "general",
+          "category": "import",
+          "icon": "Inbox",
+          "dataPattern": "both",
+          "description": "Vidarebefordra leverantörsfakturor till en unik adress – dokumenten landar här med extraherade fält",
+          "longDescription": "Varje bolag får en unik fakturainkorg-adress. Fakturor som skickas dit fångas automatiskt och fält som org.nr, OCR, bankgiro, belopp och förfallodatum extraheras deterministiskt från PDF-texten. Inga AI-anrop, inga molntjänster utöver Resend för e-postmottagning.",
+          "readsCoreTables": [
+                "document_attachments",
+                "suppliers"
+          ],
+          "hasOwnData": true
+    },
   ],
 }

lib/extensions/_generated/workspace-map.tsx

@@ -8,4 +8,5 @@ export const WORKSPACES: Record<string, ComponentType<WorkspaceComponentProps>>
   'general/arcim-migration': dynamic(() => import('@/components/extensions/general/ArcimMigrationWorkspace')),
   'general/tic': dynamic(() => import('@/components/extensions/general/TicWorkspace')),
   'general/cloud-backup': dynamic(() => import('@/components/extensions/general/CloudBackupWorkspace')),
+  'general/invoice-inbox': dynamic(() => import('@/components/extensions/general/InvoiceInboxWorkspace')),
 }