fix gateway loopback validation chains

apps/api/migrations/0023_wallet_task_billing_schema.sql

@@ -0,0 +1,48 @@
+ALTER TABLE gateway_wallet_accounts
+  ADD COLUMN IF NOT EXISTS total_recharged numeric NOT NULL DEFAULT 0,
+  ADD COLUMN IF NOT EXISTS total_spent numeric NOT NULL DEFAULT 0;
+
+ALTER TABLE gateway_wallet_transactions
+  ADD COLUMN IF NOT EXISTS account_id uuid REFERENCES gateway_wallet_accounts(id) ON DELETE CASCADE,
+  ADD COLUMN IF NOT EXISTS direction text,
+  ADD COLUMN IF NOT EXISTS balance_before numeric,
+  ADD COLUMN IF NOT EXISTS idempotency_key text;
+
+DO $$
+BEGIN
+  IF EXISTS (
+    SELECT 1
+    FROM information_schema.columns
+    WHERE table_name = 'gateway_wallet_transactions'
+      AND column_name = 'wallet_account_id'
+  ) THEN
+    EXECUTE 'UPDATE gateway_wallet_transactions SET account_id = wallet_account_id WHERE account_id IS NULL';
+  END IF;
+END $$;
+
+UPDATE gateway_wallet_transactions
+SET direction = CASE
+  WHEN transaction_type IN ('recharge', 'refund', 'credit') THEN 'credit'
+  ELSE 'debit'
+END
+WHERE direction IS NULL;
+
+UPDATE gateway_wallet_transactions
+SET balance_before = COALESCE(balance_after, 0) + CASE
+  WHEN direction = 'debit' THEN COALESCE(amount, 0)
+  ELSE -COALESCE(amount, 0)
+END
+WHERE balance_before IS NULL;
+
+ALTER TABLE gateway_wallet_transactions
+  ALTER COLUMN direction SET DEFAULT 'debit',
+  ALTER COLUMN direction SET NOT NULL,
+  ALTER COLUMN balance_before SET DEFAULT 0,
+  ALTER COLUMN balance_before SET NOT NULL;
+
+CREATE INDEX IF NOT EXISTS idx_gateway_wallet_transactions_account
+  ON gateway_wallet_transactions(account_id, created_at DESC);
+
+CREATE UNIQUE INDEX IF NOT EXISTS uniq_gateway_wallet_tx_idempotency
+  ON gateway_wallet_transactions(account_id, idempotency_key)
+  WHERE idempotency_key IS NOT NULL;