Task status model + default task status generation

db/migrate/20251021204013_create_task_statuses.rb

@@ -0,0 +1,13 @@
+class CreateTaskStatuses < ActiveRecord::Migration[8.0]
+  def change
+    create_table :task_statuses do |t|
+      t.references :project, null: false, foreign_key: true
+      t.string :name, null: false
+      t.integer :category, limit: 2, unsigned: true, null: false
+
+      t.index %i[project_id name], unique: true
+      t.index %i[project_id category name]
+      t.timestamps
+    end
+  end
+end