自动记忆：官方 memories 对齐的提取+注入闭环（确定性 v1）

开关默认关（generate/use），设置接口 GET/PUT /users/me/auto-memory-settings，任务级覆盖 POST /tasks/{id}/auto-memory-flags，手动触发 POST /users/me/auto-memory/run，日志 GET /users/me/auto-memory-log。

提取：worker run_loop 轮次边界扫 completed 任务，闲置/时长/长度/外部上下文/配额剩余百分比五道门，脱敏后写 project 级 identity_memories，同一任务去重、同一目标 supersede 合并；只写 project 级，不跨项目泄漏。

注入：worker run_one 首轮把最新各 5 条用户/项目记忆拼进内存 prompt 副本（goal 任务同步改内存 goal），库原 prompt 不动；续跑/断点/协调员不注入，注入失败 fail-open。

v1 诚实边界：extract/consolidation 模型只存设置不调模型；MCP/web 线程内调用暂无 tasks 表标记，外部上下文门只认任务间消息与协调员子任务；无控制台 UI。

cloud/db.py

@@ -967,6 +967,34 @@ POSTGRES_SCHEMA = (
     "superseded_by TEXT, "
     "created_at DOUBLE PRECISION, "
     "updated_at DOUBLE PRECISION)",
+    # Auto memory (cloud/auto_memory.py): TEXT primary keys,
+    # so no IDENTITY sequence to keep in sync in migrations.py.
+    "CREATE TABLE IF NOT EXISTS memory_settings("
+    "user_id TEXT PRIMARY KEY, "
+    "generate_memories INTEGER DEFAULT 0, "
+    "use_memories INTEGER DEFAULT 0, "
+    "disable_on_external_context INTEGER DEFAULT 1, "
+    "min_rate_limit_remaining_percent INTEGER DEFAULT 20, "
+    "idle_seconds INTEGER DEFAULT 900, "
+    "min_duration_seconds DOUBLE PRECISION DEFAULT 30, "
+    "min_result_chars INTEGER DEFAULT 200, "
+    "extract_model TEXT, "
+    "consolidation_model TEXT, "
+    "updated_at DOUBLE PRECISION)",
+    "CREATE TABLE IF NOT EXISTS task_memory_flags("
+    "task_id TEXT PRIMARY KEY, "
+    "use_memories INTEGER, "
+    "generate_memories INTEGER, "
+    "updated_at DOUBLE PRECISION)",
+    "CREATE TABLE IF NOT EXISTS memory_extraction_log("
+    "task_id TEXT PRIMARY KEY, "
+    "owner_user_id TEXT, "
+    "project_id TEXT, "
+    "status TEXT, "
+    "reason TEXT, "
+    "memory_id TEXT, "
+    "created_at DOUBLE PRECISION, "
+    "processed_at DOUBLE PRECISION)",
 )