The architecture promises that session_manager, runtime_threads, and
task_manager reject persisted state from a newer schema_version on
load, so a downgraded binary fails loud instead of silently truncating
or corrupting data. Existing tests covered:
- session_manager::test_checkpoint_rejects_newer_schema
- task_manager (newer task schema rejection)
- runtime_threads::store_load_thread_rejects_newer_schema_version
Adds the missing coverage for the other persistence paths:
- session_manager::test_load_session_rejects_newer_schema
- session_manager::test_load_offline_queue_rejects_newer_schema
- runtime_threads::store_load_turn_rejects_newer_schema_version
- runtime_threads::store_load_item_rejects_newer_schema_version
Each writes a JSON file with schema_version = CURRENT + 1 (or 999),
loads through the public API, and asserts the error message contains
"newer than supported".
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Hunter Bown
c424f3ec08