Initial project snapshot

backend/migrations/000002_auth_foundation.down.sql

@@ -0,0 +1,9 @@
+DROP TABLE IF EXISTS auth_sessions;
+DROP INDEX IF EXISTS idx_devices_user_fingerprint;
+
+ALTER TABLE devices
+    DROP COLUMN IF EXISTS updated_at,
+    DROP COLUMN IF EXISTS revoked_reason,
+    DROP COLUMN IF EXISTS revoked_at,
+    DROP COLUMN IF EXISTS trust_status,
+    DROP COLUMN IF EXISTS device_label;