Bug/accounting suggestion (#456)

* feat: add bike benefit handling and optional vacation accrual

- Introduced bike benefit (cykelförmån) with calculations for annual market value and monthly taxable value.
- Updated schemas to include new benefit types and validation rules.
- Implemented API routes for creating, updating, and deleting employee benefits.
- Enhanced salary calculation logic to accommodate new vacation rule options, including a 'none' option for no accrual.
- Added UI components for managing employee benefits, including input for bike benefit specifics.
- Created database migrations for employee benefits and updated salary line items to support new benefit types.

* chore: remove Langfuse env var checks

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

* feat: enhance OAuth callback URL handling and update default scopes for Visma integration

* feat: remove trade_name field and simplify company naming in invoices

* refactor: destructure canWrite from useCanWrite for consistency across components

* feat: enhance PATCH endpoint to validate existing benefits and handle bike benefit updates

* feat: add missing label for bike benefit in salary line item types

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

lib/pending-operations/commit.ts

@@ -616,7 +616,7 @@ async function commitSendInvoice(
     html: generateInvoiceEmailHtml(emailData),
     text: generateInvoiceEmailText(emailData),
     replyTo: company.email || undefined,
-    fromName: company.trade_name || company.company_name,
+    fromName: company.company_name,
     attachments: [{ filename, content: pdfBuffer, contentType: 'application/pdf' }],
   })