fix: 提升 CLAUDE.md 指令权重 — 独立 project-instructions + deferred tools 位置调整

- prependUserContext: 将 claudeMd 从通用 <system-reminder> 提取为独立的
  <project-instructions> 用户消息，不带免责声明，置于消息列表最前面
- queryModel: deferred tools 消息从 prepend 改为 append，避免抢占
  project-instructions 的最高权重位置；标签规范化为 <system-reminder>

Co-Authored-By: glm-5-turbo <zai-org@claude-code-best.win>

src/services/api/claude.ts

@@ -1407,12 +1407,14 @@ async function* queryModel(
       .sort()
       .join('\n')
     if (deferredToolList) {
+      // Append to the end of the messages array (not prepend) so it
+      // never抢占 <project-instructions> (CLAUDE.md) at the front.
       messagesForAPI = [
+        ...messagesForAPI,
         createUserMessage({
-          content: `<available-deferred-tools>\n${deferredToolList}\n</available-deferred-tools>\nTo invoke any tool listed above, use ExecuteExtraTool with {"tool_name": "<name>", "params": {...}}. This is the ONLY way to call deferred tools — do not read source code or analyze implementation, just call ExecuteExtraTool directly.`,
+          content: `<system-reminder>\n<available-deferred-tools>\n${deferredToolList}\n</available-deferred-tools>\nTo invoke any tool listed above, use ExecuteExtraTool with {"tool_name": "<name>", "params": {...}}. This is the ONLY way to call deferred tools — do not read source code or analyze implementation, just call ExecuteExtraTool directly.\n</system-reminder>`,
           isMeta: true,
         }),
-        ...messagesForAPI,
       ]
     }
   }