addition of archive server listing

backend/db/migrations/000022 - system-identity.sql

@@ -0,0 +1,8 @@
+CREATE TABLE IF NOT EXISTS system.settings (
+    id              UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    created_ts      TIMESTAMPTZ NOT NULL DEFAULT NOW()
+);
+INSERT INTO system.settings (id)
+SELECT gen_random_uuid()
+WHERE NOT EXISTS (SELECT 1 FROM system.settings);
+CREATE INDEX idx__system__settings__id ON system.settings (id);