switch install state to db

db/migrate/20260122131000_create_setup_states.rb

@@ -0,0 +1,10 @@
+class CreateSetupStates < ActiveRecord::Migration[8.1]
+  def change
+    create_table :setup_states do |t|
+      t.boolean :installed, null: false, default: false
+      t.datetime :installed_at
+
+      t.timestamps
+    end
+  end
+end

db/structure.sql

@@ -88,7 +88,9 @@ BEGIN
   INSERT INTO entries_fts(entries_fts, rowid, fi, en, sv, no, ru, de, notes)
   VALUES('delete', old.id, old.fi, old.en, old.sv, old.no, old.ru, old.de, old.notes);
 END;
+CREATE TABLE IF NOT EXISTS "setup_states" ("id" integer PRIMARY KEY AUTOINCREMENT NOT NULL, "installed" boolean DEFAULT FALSE NOT NULL, "installed_at" datetime(6), "created_at" datetime(6) NOT NULL, "updated_at" datetime(6) NOT NULL);
 INSERT INTO "schema_migrations" (version) VALUES
+('20260122131000'),
 ('20260122130000'),
 ('20260122124151'),
 ('20260122123837'),