- acquire(): the discard-and-recurse path becomes one more iteration of the existing wait loop;
the two inline 'with lifecycle_lock: _teardown(db)' copies reuse _teardown_generation, and the
type-narrowing asserts go away with the recursion. release() reads generation.path directly.
- Restore the real os.replace inode swaps in test_state_db_file_identity.py and the registry tests:
those files carry no windows_only marker so they never run on Windows, and the monkeypatched
predicate stopped exercising the stat->identity->halt path anywhere.
- Drop the auto-archive change and its 4 tests: on main the sweep gets a bare SessionDB and
db.close() already releases a registry-shared handle, so the described NameError leak only
existed on this branch's earlier head. trace_upload: acquire(None) already defaults.
- Trim the barrier tests to the invariant pair (retired drain must not lift a pending current
teardown; replacement not published before the last close settles) plus the raising-close
settlement; comments say the WHY once.
kshitijk4poor
b114641c88