更新memory读取机制，新增前需要先list阅读已有的内容

.opencode/tools/skill_manager.ts

@@ -1,9 +1,9 @@
 import { tool } from "@opencode-ai/plugin";
 
 import { SkillStore } from "../../src/skills/store.js";
-import { ToolSessionContextStore } from "../../src/session/toolContextStore.js";
+import { SessionRuntimeContextStore } from "../../src/sessions/runtimeContextStore.js";
 
-const toolContextStore = new ToolSessionContextStore();
+const toolContextStore = new SessionRuntimeContextStore();
 const initializePromise = toolContextStore.initialize();
 const skillStore = new SkillStore();