feat(club-004): club recovery: recovery codes and device reassignment

project/migrations/067_club_recovery_code_index.js

@@ -0,0 +1,19 @@
+/**
+ * CLUB-004 — Club recovery codes: add index on code_fingerprint.
+ *
+ * The consumeRecoveryCode() flow looks up by fingerprint, which must be fast.
+ *
+ * @param {import('node-pg-migrate').MigrationBuilder} pgm
+ */
+export const up = (pgm) => {
+  pgm.sql(`
+    CREATE INDEX IF NOT EXISTS club_recovery_codes_code_fingerprint_idx
+      ON club_recovery_codes (code_fingerprint)
+      WHERE used_at IS NULL
+  `);
+};
+
+/** @param {import('node-pg-migrate').MigrationBuilder} pgm */
+export const down = (pgm) => {
+  pgm.sql('DROP INDEX IF EXISTS club_recovery_codes_code_fingerprint_idx');
+};