v0.9.0

Changed

• Breaking: memory_state_show now returns JSON on success as well as failure; default mode includes rendered markdown under output, and as_json=True returns structured sections only
• Breaking: memory_state_from_note MCP/CLI interfaces now accept only auto_improve_mode=detect|add|skip; legacy boolean aliases are no longer exposed
• memory_state_from_note now reports auto_improve.candidates, cap_exceeded, and auto_pruned as structured fields instead of relying on free-form warning strings
• memory_state_from_note is now marked as destructive in MCP annotations, matching its real side effects such as auto-prune and legacy sidecar migration
• memory_index_upsert now returns a specific recovery hint for invalid task_id values
• memory_evidence and memory_search_global now return structured JSON error payloads instead of raw ValueError exceptions
• memory_state_show now renders its output from the structured snapshot it already read, removing the second state read and avoiding TOCTOU drift