add default user signatures

db/migrate/20230922072041_create_user_configs.rb

@@ -0,0 +1,15 @@
+# frozen_string_literal: true
+
+class CreateUserConfigs < ActiveRecord::Migration[7.0]
+  def change
+    create_table :user_configs do |t|
+      t.references :user, null: false, foreign_key: true, index: true
+      t.string :key, null: false
+      t.text :value, null: false
+
+      t.index %i[user_id key], unique: true
+
+      t.timestamps
+    end
+  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[7.0].define(version: 2023_09_20_202947) do
+ActiveRecord::Schema[7.0].define(version: 2023_09_22_072041) do
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
 
@@ -168,6 +168,16 @@ ActiveRecord::Schema[7.0].define(version: 2023_09_20_202947) do
     t.index ["slug"], name: "index_templates_on_slug", unique: true
   end
 
+  create_table "user_configs", force: :cascade do |t|
+    t.bigint "user_id", null: false
+    t.string "key", null: false
+    t.text "value", null: false
+    t.datetime "created_at", null: false
+    t.datetime "updated_at", null: false
+    t.index ["user_id", "key"], name: "index_user_configs_on_user_id_and_key", unique: true
+    t.index ["user_id"], name: "index_user_configs_on_user_id"
+  end
+
   create_table "users", force: :cascade do |t|
     t.string "first_name"
     t.string "last_name"
@@ -216,5 +226,6 @@ ActiveRecord::Schema[7.0].define(version: 2023_09_20_202947) do
   add_foreign_key "templates", "accounts"
   add_foreign_key "templates", "template_folders", column: "folder_id"
   add_foreign_key "templates", "users", column: "author_id"
+  add_foreign_key "user_configs", "users"
   add_foreign_key "users", "accounts"
 end