feat: add localized ledger explorer dashboard

infrastructure/postgres/migrations/000002_explorer_filters.down.sql

@@ -0,0 +1,2 @@
+DROP INDEX IF EXISTS ledger_accounts_user_owner_idx;
+DROP INDEX IF EXISTS journals_effect_recorded_idx;

infrastructure/postgres/migrations/000002_explorer_filters.up.sql

@@ -0,0 +1,7 @@
+CREATE INDEX journals_effect_recorded_idx
+    ON journals (lower(effect_kind), recorded_at DESC, id DESC)
+    WHERE sealed_at IS NOT NULL;
+
+CREATE INDEX ledger_accounts_user_owner_idx
+    ON ledger_accounts (owner_id, id)
+    WHERE class IN ('USER_AVAILABLE', 'USER_FROZEN');