初始化：记忆系统源代码上传（已脱敏）

- 排除 .env / *.bak / 内部运维文档（README_INTERNAL.html）
- config.py 默认密码已替换为占位符 CHANGE_ME_*
- init_db.sql 移除生产数据库用户 GRANT 段
- README.html 数据库用户名已脱敏
- 保留：源码 + 公网 API 文档 + 建表 SQL（无授权语句）

storage/redis_cache.py

@@ -0,0 +1,68 @@
+"""Redis Cache Layer for Working Memory"""
+import json
+import time
+import logging
+from typing import List, Optional, Dict
+
+import redis
+
+logger = logging.getLogger(__name__)
+
+
+class RedisCache:
+    """Redis-backed working memory cache with TTL."""
+
+    def __init__(self, host: str = "127.0.0.1", port: int = 6379,
+                 password: str = "", db: int = 0):
+        self.client = redis.Redis(
+            host=host, port=port, password=password, db=db,
+            decode_responses=True, socket_timeout=5,
+        )
+
+    def _key(self, agent_id: str) -> str:
+        return f"wm:{agent_id}"
+
+    def add_working_memory(self, agent_id: str, content: str,
+                           metadata: dict = None, ttl: int = 259200) -> dict:
+        """Add an item to agent's working memory (Redis List)."""
+        item = {
+            "content": content,
+            "metadata": metadata or {},
+            "timestamp": time.time(),
+        }
+        key = self._key(agent_id)
+        self.client.lpush(key, json.dumps(item))
+        self.client.expire(key, ttl)
+        return item
+
+    def get_working_memories(self, agent_id: str, limit: int = 20) -> List[dict]:
+        """Get recent working memory items for an agent."""
+        key = self._key(agent_id)
+        items = self.client.lrange(key, 0, limit - 1)
+        result = []
+        for item_str in items:
+            try:
+                parsed = json.loads(item_str)
+                if isinstance(parsed, dict):
+                    result.append(parsed)
+            except json.JSONDecodeError:
+                continue
+        return result
+
+    def clear_working_memory(self, agent_id: str) -> bool:
+        """Clear all working memory for an agent."""
+        key = self._key(agent_id)
+        self.client.delete(key)
+        return True
+
+    def get_working_memory_count(self, agent_id: str) -> int:
+        """Get count of working memory items."""
+        key = self._key(agent_id)
+        return self.client.llen(key)
+
+    def health_check(self) -> bool:
+        """Check Redis connectivity."""
+        try:
+            return self.client.ping()
+        except Exception:
+            return False