feat: Implement payment retry system and draft ticket expiry management

- Add 30-minute expiry window for draft tickets with automatic cleanup
- Implement 3-attempt payment retry mechanism with tracking
- Create background job for cleaning expired draft tickets every 10 minutes
- Add comprehensive UI warnings for expiring tickets and retry attempts
- Enhance dashboard to display pending draft tickets with retry options
- Add payment cancellation handling with smart retry redirections
- Include rake tasks for manual cleanup and statistics
- Add database fields: expires_at, payment_attempts, last_payment_attempt_at, stripe_session_id
- Fix payment attempt counter display to show correct attempt number (1/3, 2/3, 3/3)

db/schema.rb

@@ -40,7 +40,6 @@ ActiveRecord::Schema[8.0].define(version: 2025_08_23_171354) do
     t.integer "quantity"
     t.datetime "sale_start_at"
     t.datetime "sale_end_at"
-    t.boolean "requires_id"
     t.integer "minimum_age"
     t.bigint "event_id", null: false
     t.datetime "created_at", null: false
@@ -53,9 +52,13 @@ ActiveRecord::Schema[8.0].define(version: 2025_08_23_171354) do
   create_table "tickets", charset: "utf8mb4", collation: "utf8mb4_uca1400_ai_ci", force: :cascade do |t|
     t.string "qr_code"
     t.integer "price_cents"
-    t.string "status", default: "active"
+    t.string "status", default: "draft"
     t.string "first_name"
     t.string "last_name"
+    t.string "stripe_session_id"
+    t.timestamp "expires_at"
+    t.integer "payment_attempts", default: 0
+    t.timestamp "last_payment_attempt_at"
     t.bigint "user_id"
     t.bigint "ticket_type_id", null: false
     t.datetime "created_at", null: false