Events: kickstart shared scoreboard

db/migrate/20260730055752_add_slug_to_event.rb

@@ -0,0 +1,5 @@
+class AddSlugToEvent < ActiveRecord::Migration[8.0]
+  def change
+    add_column :events, :slug, :string
+  end
+end

db/schema.rb

@@ -10,7 +10,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema[8.0].define(version: 2026_07_26_114604) do
+ActiveRecord::Schema[8.0].define(version: 2026_07_30_055752) do
   create_table "active_storage_attachments", force: :cascade do |t|
     t.string "name", null: false
     t.string "record_type", null: false
@@ -126,6 +126,7 @@ ActiveRecord::Schema[8.0].define(version: 2026_07_26_114604) do
     t.integer "user_id", null: false
     t.boolean "shared_scoreboard"
     t.string "lang", default: "en"
+    t.string "slug"
     t.index ["user_id"], name: "index_events_on_user_id"
   end