Add new memory files for OpenClaw and Chrome DevTools MCP sessions

- Created memory file for OpenClaw version check with details on the latest version and update instructions.
- Added memory file for Chrome DevTools MCP session, summarizing its features, installation, and usage examples.
- Included memory file for OpenClaw update details, outlining the latest changes and improvements.
- Added memory file for OpenCode version check, detailing the latest version and its features.

memory/2026-03-16.md

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+# 2026-03-16 记录
+
+## Token 使用统计
+
+**时间范围：** 2026-03-09 至 2026-03-16（最近一周）
+
+### OpenClaw Token 用量统计
+
+| Agent | 最近一周 Token 用量 |
+|--------|------------------|
+| Main   | 963,960        |
+| Zai    | 507,380        |
+| Ali    | 0              |
+| **总计** | **1,471,340**   |
+
+### 说明
+
+- **Main agent**: 963,960 tokens - 占总用量的约 65.5%
+- **Zai agent**: 507,380 tokens - 占总用量的约 34.5%
+- **Ali agent**: 最近一周无使用
+
+### 备注
+
+- 统计基于会话的 `updatedAt` 时间戳筛选
+- 仅统计 `updatedAt` 在过去一周内的会话
+- 数据来源: OpenClaw sessions 数据库
+
+---