feat(workspace-terminal): use environment shell command

ts_web/elements/00group-runtime/environments/WebContainerEnvironment.ts

@@ -1,5 +1,11 @@
 import * as webcontainer from '@tempfix/webcontainer__api';
-import type { IExecutionEnvironment, IFileEntry, IFileWatcher, IProcessHandle } from '../interfaces/IExecutionEnvironment.js';
+import type {
+  IExecutionEnvironment,
+  IFileEntry,
+  IFileWatcher,
+  IProcessHandle,
+  IShellCommand,
+} from '../interfaces/IExecutionEnvironment.js';
 
 /**
  * WebContainer-based execution environment.
@@ -154,6 +160,14 @@ export class WebContainerEnvironment implements IExecutionEnvironment {
     };
   }
 
+  public getShellCommand(): IShellCommand {
+    return {
+      command: 'jsh',
+      label: 'jsh',
+      prompt: '~/',
+    };
+  }
+
   // ============ WebContainer-specific methods ============
 
   /**