fix(worklist): count unbooked skattekonto rows in the Att göra badge and Hem list (#2180) (#2227)

The Transaktioner inbox lists unbooked skattekonto rows next to unbooked
bank rows, but the sidebar badge and the Hem "Att göra" list counted bank
rows only, so a migrated tax account waited in the inbox unseen.

- lib/worklist: new category book_skattekonto with the inbox's own
  predicate (status = 'booked', no verifikat, not ignored); aggregate
  includes it in counts and total.
- Hem: a "Bokföra skattekontohändelser" row under Bokför, deep-linking to
  /transactions?source=skatteverket.
- Sidebar badge hook: the same third head-count query, summed into the
  /transactions badge.
- DashboardNav subscribes to skattekonto_transactions realtime changes;
  migration adds the table to the supabase_realtime publication so a
  booked or ignored row drops the badge without a manual refresh.

Closes #2180


Claude-Session: https://claude.ai/code/session_01QPQLwHNEiQfiCNLSMzXMiQ

Co-authored-by: Jakob Wennberg <311770904+jakobwennberg-oss@users.noreply.github.com>
Co-authored-by: Claude Fable 5.1 <noreply@anthropic.com>

supabase/migrations/20260903120000_skattekonto_transactions_realtime_publication.sql

@@ -0,0 +1,27 @@
+-- Migration: stream skattekonto_transactions changes via Supabase realtime
+--
+-- The sidebar "Att göra" badge now counts unbooked skattekonto rows next to
+-- unbooked bank transactions (#2180), and DashboardNav listens to
+-- postgres_changes on public.skattekonto_transactions so a booked or
+-- ignored tax-account row drops the badge without a manual refresh, the
+-- same way public.transactions already does (20260629180000).
+--
+-- RLS already scopes skattekonto_transactions to the user's companies, so
+-- realtime only delivers rows the current user is allowed to read.
+--
+-- Idempotent so preview branches or partial re-applies do not fail if the
+-- publication already includes the table.
+DO $$
+BEGIN
+  IF NOT EXISTS (
+    SELECT 1
+    FROM pg_publication_tables
+    WHERE pubname = 'supabase_realtime'
+      AND schemaname = 'public'
+      AND tablename = 'skattekonto_transactions'
+  ) THEN
+    ALTER PUBLICATION supabase_realtime ADD TABLE public.skattekonto_transactions;
+  END IF;
+END $$;
+
+NOTIFY pgrst, 'reload schema';