Remove engagements

We are not using this anymore!

db/migrate/20251219120755_drop_card_engagements.rb

@@ -0,0 +1,16 @@
+class DropCardEngagements < ActiveRecord::Migration[8.2]
+  def up
+    drop_table :card_engagements
+  end
+
+  def down
+    create_table :card_engagements, id: :uuid do |t|
+      t.references :account, type: :uuid, null: false
+      t.references :card, type: :uuid, null: false, index: true
+      t.string :status, null: false
+      t.timestamps
+    end
+
+    add_index :card_engagements, [ :account_id, :status ]
+  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[8.2].define(version: 2025_12_10_054934) do
+ActiveRecord::Schema[8.2].define(version: 2025_12_19_120755) do
   create_table "accesses", id: :uuid, charset: "utf8mb4", collation: "utf8mb4_0900_ai_ci", force: :cascade do |t|
     t.datetime "accessed_at"
     t.uuid "account_id", null: false
@@ -169,16 +169,6 @@ ActiveRecord::Schema[8.2].define(version: 2025_12_10_054934) do
     t.index ["card_id"], name: "index_card_activity_spikes_on_card_id", unique: true
   end
 
-  create_table "card_engagements", id: :uuid, charset: "utf8mb4", collation: "utf8mb4_0900_ai_ci", force: :cascade do |t|
-    t.uuid "account_id", null: false
-    t.uuid "card_id"
-    t.datetime "created_at", null: false
-    t.string "status", default: "doing", null: false
-    t.datetime "updated_at", null: false
-    t.index ["account_id", "status"], name: "index_card_engagements_on_account_id_and_status"
-    t.index ["card_id"], name: "index_card_engagements_on_card_id"
-  end
-
   create_table "card_goldnesses", id: :uuid, charset: "utf8mb4", collation: "utf8mb4_0900_ai_ci", force: :cascade do |t|
     t.uuid "account_id", null: false
     t.uuid "card_id", null: false

db/schema_sqlite.rb

@@ -10,7 +10,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema[8.2].define(version: 2025_12_10_054934) do
+ActiveRecord::Schema[8.2].define(version: 2025_12_19_120755) do
   create_table "accesses", id: :uuid, force: :cascade do |t|
     t.datetime "accessed_at"
     t.uuid "account_id", null: false
@@ -169,16 +169,6 @@ ActiveRecord::Schema[8.2].define(version: 2025_12_10_054934) do
     t.index ["card_id"], name: "index_card_activity_spikes_on_card_id", unique: true
   end
 
-  create_table "card_engagements", id: :uuid, force: :cascade do |t|
-    t.uuid "account_id", null: false
-    t.uuid "card_id"
-    t.datetime "created_at", null: false
-    t.string "status", limit: 255, default: "doing", null: false
-    t.datetime "updated_at", null: false
-    t.index ["account_id", "status"], name: "index_card_engagements_on_account_id_and_status"
-    t.index ["card_id"], name: "index_card_engagements_on_card_id"
-  end
-
   create_table "card_goldnesses", id: :uuid, force: :cascade do |t|
     t.uuid "account_id", null: false
     t.uuid "card_id", null: false