chore: Update foreign key references in migration files

Update the foreign key references in the migration files to use the correct table names. This change ensures that the foreign keys point to the appropriate tables, improving data integrity and preventing potential errors.

Related to recent user commits that fixed migrations and updated the Leva gem to version 0.1.2. Also aligns with recent repository commits that updated the Leva gem, removed an outdated file, and refactored authentication logic.

db/migrate/20240813173033_create_leva_dataset_records.rb

@@ -1,7 +1,7 @@
 class CreateLevaDatasetRecords < ActiveRecord::Migration[7.2]
   def change
     create_table :leva_dataset_records do |t|
-      t.references :dataset, null: false, foreign_key: true
+      t.references :dataset, null: false, foreign_key: { to_table: :leva_datasets }
       t.references :recordable, polymorphic: true, null: false
 
       t.timestamps

db/migrate/20240813173035_create_leva_experiments.rb

@@ -2,8 +2,8 @@ class CreateLevaExperiments < ActiveRecord::Migration[7.2]
   def change
     create_table :leva_experiments do |t|
       t.string :name
-      t.references :dataset, null: false, foreign_key: true
-      t.references :prompt, null: true, foreign_key: true
+      t.references :dataset, null: false, foreign_key: { to_table: :leva_datasets }
+      t.references :prompt, null: true, foreign_key: { to_table: :leva_prompts }
       t.integer :status
       t.text :metadata
 

db/migrate/20240813173050_create_leva_evaluation_results.rb

@@ -1,8 +1,8 @@
 class CreateLevaEvaluationResults < ActiveRecord::Migration[7.2]
   def change
     create_table :leva_evaluation_results do |t|
-      t.references :experiment, null: false, foreign_key: true
-      t.references :dataset_record, null: false, foreign_key: true
+      t.references :experiment, null: false, foreign_key: { to_table: :leva_experiments }
+      t.references :dataset_record, null: false, foreign_key: { to_table: :leva_dataset_records }
       t.string :prediction
       t.float :score
       t.string :label