feat: Wiki の管理方法変更（#188） (#195)

Merge branch 'feature/188' of https://git.miteruzo.com/miteruzo/btrc-hub into feature/188

#188

Merge branch 'main' into feature/188

#188

#188

#188

#188

Co-authored-by: miteruzo <miteruzo@naver.com>
Reviewed-on: #195

backend/db/migrate/20251229022100_create_wiki_revision_lines.rb

@@ -0,0 +1,12 @@
+class CreateWikiRevisionLines < ActiveRecord::Migration[7.0]
+  def change
+    create_table :wiki_revision_lines do |t|
+      t.references :wiki_revision, null: false, foreign_key: true
+      t.integer :position, null: false
+      t.references :wiki_line, null: false, foreign_key: true
+    end
+
+    add_index :wiki_revision_lines, [:wiki_revision_id, :position], unique: true
+    add_index :wiki_revision_lines, [:wiki_revision_id, :wiki_line_id]
+  end
+end