Bug/gh issues fiz (#1103)

* refactor: optimize page loading and data fetching

* fix: resolve recurring production runtime errors

* feat: add MCP company and customer updates

* fix: handle year-end tax adjustments

* feat: harden annual report compliance

* fix: expand invoice logo and font support

* fix: sanitize API route error responses

* fix: sanitize user-facing error messages

* feat: persist onboarding and tax assessment notices

* fix: reduce cloud backup audit churn

* feat: refine invoice editor layout

* fix: show saved tax adjustments in INK2

* fix: complete annual report API mappings

* docs: record operational safeguards and decisions

* fix: harden annual report review findings

* fix: adjust column span for description based on VAT registration

* New css class name

.env.example

@@ -46,3 +46,9 @@ CRON_SECRET=generate-a-random-secret
 # BOLAGSVERKET_CLIENT_CERT=
 # BOLAGSVERKET_CLIENT_KEY=
 # BOLAGSVERKET_CA=
+# Safety gate: enable only after agreement, certificate, test-bank fixtures,
+# acceptance testing, and production runbook approval are complete.
+# BOLAGSVERKET_FILING_ENABLED=false
+# NEXT_PUBLIC_BOLAGSVERKET_FILING_ENABLED=false
+# BOLAGSVERKET_ARELLE_VALIDATOR_URL=
+# BOLAGSVERKET_ARELLE_VALIDATOR_TOKEN=