chore: 发布 v8.0.1

- 版本号统一更新至 v8.0.1（README 中英 badge / about.txt / xcli_core/constants.py 中央 VERSION / TUI banner / LSP·MCP clientInfo.version）
- CHANGELOG 新增 v8.0.1 条目，记录 Operit 转译层落地与 5 个已验证市场插件接入

mcp_client.py

@@ -153,7 +153,7 @@ class McpClient:
         result = self._send("initialize", {
             "protocolVersion": PROTOCOL_VERSION,
             "capabilities": {},
-            "clientInfo": {"name": "xiaoli-cli", "version": "8.0"},
+            "clientInfo": {"name": "xiaoli-cli", "version": "8.0.1"},
         })
         # 通知 server 初始化完成（无响应，无需等待）
         self._send("notifications/initialized", {}, is_notification=True)