docs: clarify QSL architecture role (#17)

Co-authored-by: Codex <noreply@openai.com>

Author: Pigbibi

README.md

@@ -1,5 +1,14 @@
 # QuantAdvisorResearch
 
+
+## QSL architecture role
+
+- **Layer**: `research`.
+- **Responsibility**: research-oriented advisory publishing system.
+- **Owns**: traceable advisory reports and web/RSS evidence summaries.
+- **Consumes**: public web/RSS inputs and research signal context.
+- **Must not**: submit orders, allocation changes, or account advice automatically.
+
 [Chinese README](README.zh-CN.md)
 
 > Investing involves risk. This project does not provide investment advice and is for education, research, and engineering review only.

README.zh-CN.md

@@ -1,5 +1,14 @@
 # QuantAdvisorResearch
 
+
+## QSL 架构角色
+
+- **层级**：`研究/证据`。
+- **职责**：研究型 advisory 发布系统。
+- **事实源/归属**：可追溯 advisory reports 和 web/RSS 证据摘要。
+- **消费对象**：公开 web/RSS 输入和 research signal context。
+- **禁止事项**：自动提交订单、allocation changes 或账户建议。
+
 [English README](README.md)
 
 > 投资有风险。本项目不构成投资建议，仅用于学习、研究和工程审阅。