Добавление миграций БД и моделей

db/migrate/20260312000001_create_organizations.rb

@@ -0,0 +1,18 @@
+class CreateOrganizations < ActiveRecord::Migration[7.1]
+  def change
+    create_table :organizations do |t|
+      t.string :inn, null: false
+      t.string :full_name
+      t.string :kpp
+      t.string :okpo
+      t.string :okfs
+      t.string :okopf
+      t.string :okved2
+      t.string :address
+
+      t.timestamps
+    end
+
+    add_index :organizations, :inn
+  end
+end

db/migrate/20260312000002_create_auditors.rb

@@ -0,0 +1,13 @@
+class CreateAuditors < ActiveRecord::Migration[7.1]
+  def change
+    create_table :auditors do |t|
+      t.string :name
+      t.string :inn
+      t.string :ogrn
+
+      t.timestamps
+    end
+
+    add_index :auditors, :inn
+  end
+end

db/migrate/20260312000003_create_document_types.rb

@@ -0,0 +1,9 @@
+class CreateDocumentTypes < ActiveRecord::Migration[7.1]
+  def change
+    create_table :document_types do |t|
+      t.string :name, null: false
+
+      t.timestamps
+    end
+  end
+end

db/migrate/20260312000004_create_yearly_files.rb

@@ -0,0 +1,11 @@
+class CreateYearlyFiles < ActiveRecord::Migration[7.1]
+  def change
+    create_table :yearly_files do |t|
+      t.references :organization, null: false, foreign_key: true
+      t.integer :year, null: false
+      t.references :auditor, foreign_key: true
+
+      t.timestamps
+    end
+  end
+end

db/migrate/20260312000005_create_financial_statements.rb

@@ -0,0 +1,12 @@
+class CreateFinancialStatements < ActiveRecord::Migration[7.1]
+  def change
+    create_table :financial_statements do |t|
+      t.references :yearly_file, null: false, foreign_key: true
+      t.references :document_type, null: false, foreign_key: true
+      t.integer :sheet_number
+      t.jsonb :data, default: {}
+
+      t.timestamps
+    end
+  end
+end