data deletion oneshot (#691)

db/migrate/20251208020226_create_deletion_requests.rb

@@ -0,0 +1,20 @@
+class CreateDeletionRequests < ActiveRecord::Migration[8.1]
+  def change
+    create_table :deletion_requests do |t|
+      t.references :user, null: false, foreign_key: true
+      t.datetime :requested_at, null: false
+      t.datetime :admin_approved_at
+      t.bigint :admin_approved_by_id
+      t.datetime :cancelled_at
+      t.datetime :scheduled_deletion_at
+      t.datetime :completed_at
+      t.integer :status, null: false, default: 0
+
+      t.timestamps
+    end
+
+    add_foreign_key :deletion_requests, :users, column: :admin_approved_by_id
+    add_index :deletion_requests, :status
+    add_index :deletion_requests, [ :user_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[8.1].define(version: 2025_12_05_211711) do
+ActiveRecord::Schema[8.1].define(version: 2025_12_08_020226) do
   create_schema "pganalyze"
   # These are extensions that must be enabled in order to support this database
   enable_extension "pg_catalog.plpgsql"
@@ -116,6 +116,22 @@ ActiveRecord::Schema[8.1].define(version: 2025_12_05_211711) do
     t.index ["user_id"], name: "index_commits_on_user_id"
   end
 
+  create_table "deletion_requests", force: :cascade do |t|
+    t.datetime "admin_approved_at"
+    t.bigint "admin_approved_by_id"
+    t.datetime "cancelled_at"
+    t.datetime "completed_at"
+    t.datetime "created_at", null: false
+    t.datetime "requested_at", null: false
+    t.datetime "scheduled_deletion_at"
+    t.integer "status", default: 0, null: false
+    t.datetime "updated_at", null: false
+    t.bigint "user_id", null: false
+    t.index ["status"], name: "index_deletion_requests_on_status"
+    t.index ["user_id", "status"], name: "index_deletion_requests_on_user_id_and_status"
+    t.index ["user_id"], name: "index_deletion_requests_on_user_id"
+  end
+
   create_table "email_addresses", force: :cascade do |t|
     t.datetime "created_at", null: false
     t.string "email"
@@ -609,6 +625,8 @@ ActiveRecord::Schema[8.1].define(version: 2025_12_05_211711) do
   add_foreign_key "api_keys", "users"
   add_foreign_key "commits", "repositories"
   add_foreign_key "commits", "users"
+  add_foreign_key "deletion_requests", "users"
+  add_foreign_key "deletion_requests", "users", column: "admin_approved_by_id"
   add_foreign_key "email_addresses", "users"
   add_foreign_key "email_verification_requests", "users"
   add_foreign_key "heartbeats", "raw_heartbeat_uploads"