feat(shellEnv): 注册并导出 Bailian 工作空间 ID 环境变量

- 新增 ShellEnvRegistration 接口定义，避免对主包依赖
- 为上下文添加 shellEnv 注册功能支持
- 在注入阶段注册 Bailian 工作空间 ID 环境变量
- 使管理 CLI 命令可访问解析后的工作空间 ID
- 确保子进程环境变量继承设置服务解析结果

packages/tool-bailian-kb/src/index.ts

@@ -19,11 +19,20 @@ interface WebRoute {
   path: string
   handler: (req: IncomingMessage, res: ServerResponse) => void | Promise<void>
 }
+/** Shell-environment registration shape (declared inline to avoid a host-package dependency). */
+interface ShellEnvRegistration {
+  name: string
+  variables: Record<string, { description: string }>
+  resolve: () => Record<string, string | undefined>
+}
 declare module '@deepseek-ai/cordis' {
   interface Context {
     webServer: {
       register(route: WebRoute): () => void
     }
+    shellEnv: {
+      register(registration: ShellEnvRegistration): void
+    }
   }
 }
 
@@ -184,6 +193,25 @@ export function apply(ctx: Context, config: Config): void {
   }
   registerSkill(ctx)
 
+  // Export the resolved workspace id as a shell environment variable so
+  // management CLI commands (`bl knowledge list`, `kscli kb list`, etc.)
+  // running in bash can see the value the settings service resolved.
+  // Without this, the settings.yaml value is invisible to child processes.
+  ctx.inject(['shellEnv'], (envCtx) => {
+    envCtx.shellEnv.register({
+      name: 'bailian-kb',
+      variables: {
+        BAILIAN_WORKSPACE_ID: {
+          description: 'Bailian workspace id resolved from settings (Settings → 百炼知识库) or credentials.',
+        },
+      },
+      resolve: () => {
+        const wsId = current().workspaceId
+        return wsId ? { BAILIAN_WORKSPACE_ID: wsId } : {}
+      },
+    })
+  })
+
   // Bridge routes let the browser settings page read and write the resolved
   // section without riding the settings wire (which requires an apiproxy
   // allowlist entry the composition does not grant out-of-tree namespaces).