* fix(swift): replace assert!(false) with panic! in expiration_worker test
clippy::assertions_on_constants fails the swift clippy CI job under -D warnings.
* fix(ecstore): add missing ctx field to multipart lock test store
The multipart list-parts lock test (#4437) constructs ECStore without the
ctx field added by the Phase 5 InstanceContext work (backlog#939). Both
landed on main independently, leaving a semantic conflict that breaks the
ecstore lib-test build (E0063). Adopt the process bootstrap context,
matching the existing bootstrap_ctx() test in store/mod.rs.