feat(agent): add credential refresh and unify learning tools

src/runtime/opencode.ts

@@ -1,6 +1,5 @@
 import {
   createOpencode,
-  createOpencodeClient,
   type OpencodeClient,
 } from "@opencode-ai/sdk/v2";
 import { existsSync, readFileSync } from "node:fs";
@@ -387,19 +386,6 @@ export class OpencodeRuntimeAdapter {
   }
 
   private async bootstrapClient(): Promise<OpencodeClient> {
-    if (config.OPENCODE_MODE === "client") {
-      logger.info(
-        {
-          baseUrl: config.OPENCODE_CLIENT_BASE_URL,
-          mode: config.OPENCODE_MODE,
-        },
-        "connecting to opencode server in client mode",
-      );
-      return createOpencodeClient({
-        baseUrl: config.OPENCODE_CLIENT_BASE_URL,
-      });
-    }
-
     // embedded 模式下，把服务内工具桥地址注入到 opencode 进程环境里，
     // 这样 .opencode/tools 下的自定义工具可以回调本服务。
     process.env.TJWATER_AGENT_INTERNAL_BASE_URL = `http://127.0.0.1:${config.PORT}`;
@@ -430,7 +416,7 @@ export class OpencodeRuntimeAdapter {
     } catch (error) {
       if (isMissingOpencodeCli(error)) {
         throw new Error(
-          "embedded mode requires the opencode CLI to be installed and available in PATH; otherwise set OPENCODE_MODE=client and provide OPENCODE_CLIENT_BASE_URL",
+          "embedded mode requires the opencode CLI to be installed and available in PATH",
         );
       }
       throw error;