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* feat(memory): support category capacity reservation in DeerMem hybrid-v1 eviction In long-running personal assistant interactions, core user profile facts (such as health allergies, coding style, or identity constraints) can suffer from capacity starvation as high-confidence conversational context accumulates. This change introduces opt-in category capacity reservation for DeerMem: - In DeerMemConfig and select_facts_for_capacity, support eviction_reserved_categories (defaulting to ['correction'] for historical compatibility) and eviction_decay_exempt_categories (defaulting to empty list). - Wire MemoryUpdater to pass the configured categories to select_facts_for_capacity. - Add deterministic offline unit tests in test_memory_personal_assistant_protection.py verifying root-cause reproduction, bidirectional lifecycle (clean explicit removal and contradiction replacement), and strict backward compatibility under defaults. * fix(memory): preserve correction priority in reserved capacity Co-authored-by: Wistom Zhang <77424093+Yakyou7@users.noreply.github.com> --------- Co-authored-by: Totoro <msy626836554@gmail.com> Co-authored-by: Totoro-qaq <279883115+Totoro-qaq@users.noreply.github.com>