Bug/accounting ps eu (#474)

* feat(api): implement commit functionality for journal entries

* fix(extensions): make ExtensionSettings.clear() a real delete so disconnect flows work

The 2026-03-30 multi-tenant refactor dropped all RLS policies on extension_data
and recreated only SELECT/INSERT/UPDATE. Combined with `value jsonb NOT NULL`,
every extension that called `settings.set(key, null)` to clear stored state
(cloud-backup disconnect, skatteverket OAuth/AGI cleanup, arcim-migration
consent reset) silently failed — the upsert hit the NOT NULL constraint and
the error was swallowed, leaving users stuck with stale connection rows.

Adds an `extension_data_delete` RLS policy, a `clear(key)` method backed by a
real DELETE, switches the four affected handlers, and makes `set()` throw on
Supabase error so this class of silent failure can't recur.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* feat(journal-entries): add draft saving functionality to journal entry form

* feat: add periodisk sammanställning report generation and CSV export

- Implemented period date helpers in `period-dates.ts` for calculating start and end dates based on period type (monthly, quarterly, yearly).
- Created `periodisk-sammanstallning.ts` to generate the periodisk sammanställning report, including data fetching, validation, and warning handling.
- Developed CSV serializer in `periodisk-sammanstallning-csv.ts` for exporting the report in SKV574008 format.
- Added new columns to `company_settings` for storing periodisk sammanställning settings and tax contact information via migration.
- Introduced a new migration to add a `paid_with_private_funds` flag to `supplier_invoices` for tracking out-of-pocket expenses.
- Updated journal entries to include the new source type for privately paid supplier invoices.

* feat(migrations): add paid_with_private_funds flag to supplier_invoices and expand journal_entries.source_type CHECK

* fix(ai_requests): drop existing policies and trigger before creating new ones

* fix(migrations): ensure extension_data has a proper DELETE policy for ExtensionSettings.clear()

* fix(supplier-invoices): update error handling for invalid input in POST request

* fix: correct capitalization in project title

* fix(migrations): resolve duplicate version 20260513120000

Two migrations shared the same timestamp prefix, causing
schema_migrations_pkey collision on Supabase preview branches.
Bump extension_data_delete_policy to 20260513120001.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

lib/api/schemas.ts

@@ -98,6 +98,7 @@ export const JournalEntrySourceTypeSchema = z.enum([
   'supplier_invoice_registered',
   'supplier_invoice_paid',
   'supplier_invoice_cash_payment',
+  'supplier_invoice_privately_paid',
   'supplier_credit_note',
   'currency_revaluation',
 ])
@@ -137,6 +138,8 @@ export const DeadlineSourceSchema = z.enum(['system', 'user'])
 
 export const MomsPeriodSchema = z.enum(['monthly', 'quarterly', 'yearly'])
 
+export const PsPeriodTypeSchema = z.enum(['monthly', 'quarterly'])
+
 export const DocumentUploadSourceSchema = z.enum([
   'camera', 'file_upload', 'email', 'e_invoice', 'scan', 'api', 'system',
 ])
@@ -263,6 +266,10 @@ export const CreateSupplierInvoiceSchema = z.object({
   reverse_charge: z.boolean().optional(),
   payment_reference: z.string().optional(),
   notes: z.string().optional(),
+  paid_with_private_funds: z.boolean().optional(),
+  // For paid_with_private_funds: the date the owner paid out-of-pocket.
+  // Defaults to invoice_date (common for kvitto where the two coincide).
+  payment_date: isoDate.optional(),
   items: z.array(CreateSupplierInvoiceItemSchema).min(1, 'At least one item is required'),
 })
 
@@ -371,6 +378,10 @@ export const UpdateSettingsSchema = z.object({
   vat_registered: z.boolean().optional(),
   vat_number: z.string().regex(/^SE\d{12}$/, 'Momsregistreringsnummer måste vara SE följt av 12 siffror').nullable().optional(),
   moms_period: MomsPeriodSchema.nullable().optional(),
+  periodisk_sammanstallning_period: PsPeriodTypeSchema.optional(),
+  tax_contact_name: z.string().max(200).nullable().optional(),
+  tax_contact_phone: z.string().max(40).nullable().optional(),
+  tax_contact_email: z.string().email().nullable().optional().or(z.literal('')),
   fiscal_year_start_month: z.number().int().min(1).max(12).optional(),
   preliminary_tax_monthly: z.number().nullable().optional(),
   bank_name: z.string().max(100, 'Banknamn får vara max 100 tecken').optional(),