switch install state to db

README.md

@@ -53,7 +53,7 @@ When translators disagree on a translation or want to suggest alternatives (regi
 
 ## Setup / First User
 
-When the file `.installed` is missing, the `/setup` route is accessible for creating the initial admin account. The first user created will be the system's default contact email (accessible via `User.first.email`).
+When setup has not been completed, the `/setup` route is accessible for creating the initial admin account. Completion is tracked in the database. The first user created will be the system's default contact email (accessible via `User.first.email`).
 
 For detailed setup instructions, see [SETUP_GUIDE.md](docs/SETUP_GUIDE.md).
 

app/controllers/application_controller.rb

@@ -57,6 +57,6 @@ class ApplicationController < ActionController::Base
   end
 
   def setup_completed?
-    File.exist?(Rails.root.join(".installed"))
+    SetupState.installed?
   end
 end

app/controllers/setup_controller.rb

@@ -11,7 +11,7 @@ class SetupController < ApplicationController
     @user.invitation_accepted_at = Time.current
 
     if @user.save
-      create_installed_marker
+      SetupState.mark_installed!
       session[:user_id] = @user.id
       redirect_to admin_root_path, notice: "Setup complete! Welcome to Sanasto Wiki."
     else
@@ -28,15 +28,7 @@ class SetupController < ApplicationController
   end
 
   def setup_completed?
-    File.exist?(installed_marker_path)
-  end
-
-  def installed_marker_path
-    Rails.root.join(".installed")
-  end
-
-  def create_installed_marker
-    FileUtils.touch(installed_marker_path)
+    SetupState.installed?
   end
 
   def user_params

app/models/setup_state.rb

@@ -0,0 +1,16 @@
+class SetupState < ApplicationRecord
+  def self.installed?
+    first&.installed? || false
+  end
+
+  def self.mark_installed!
+    record = first_or_initialize
+    record.installed = true
+    record.installed_at ||= Time.current
+    record.save!
+  end
+
+  def self.reset!
+    delete_all
+  end
+end

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'),