fix(sagemaker): fix sagemaker.parseCookies cmd not found (#7670)

## Problem
After Remote - SSH to a sagemaker space via VS Code, the amazon Q plugin
cannot be loaded for the following error.

```
2025-07-10 17:23:52.976 [info] ExtensionService#_doActivateExtension amazonwebservices.aws-toolkit-vscode, startup: false, activationEvent: 'onStartupFinished'
2025-07-10 17:23:57.478 [error] Activating extension amazonwebservices.amazon-q-vscode failed due to an error:
2025-07-10 17:23:57.478 [error] Error: command 'sagemaker.parseCookies' not found
    at mYe.n (vscode-file://vscode-app/Applications/Visual%20Studio%20Code.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:1855:1328)
    at mYe.executeCommand (vscode-file://vscode-app/Applications/Visual%20Studio%20Code.app/Contents/Resources/app/out/vs/workbench/workbench.desktop.main.js:1855:1260)
```

## Solution
After discussed with the Sagemaker team folks @sunp and @arkaprav, we
decide that if cmd `sagemaker.parseCookies` not found, we just swallow
the error and add a log for it.

### Test
a local build is created for testing.
<img width="1198" height="793" alt="image"
src="https://github.com/user-attachments/assets/ea726d78-6cb9-4e91-bad7-f0da43cf4c83"
/>

---

- Treat all work as PUBLIC. Private `feature/x` branches will not be
squash-merged at release time.
- Your code changes must meet the guidelines in
[CONTRIBUTING.md](https://github.com/aws/aws-toolkit-vscode/blob/master/CONTRIBUTING.md#guidelines).
- License: I confirm that my contribution is made under the terms of the
Apache 2.0 license.

Author: yueny2020

packages/core/src/auth/activation.ts

@@ -9,17 +9,28 @@ import { LoginManager } from './deprecated/loginManager'
 import { fromString } from './providers/credentials'
 import { initializeCredentialsProviderManager } from './utils'
 import { isAmazonQ, isSageMaker } from '../shared/extensionUtilities'
+import { getLogger } from '../shared/logger/logger'
+import { getErrorMsg } from '../shared/errors'
 
 interface SagemakerCookie {
     authMode?: 'Sso' | 'Iam'
 }
 
 export async function initialize(loginManager: LoginManager): Promise<void> {
     if (isAmazonQ() && isSageMaker()) {
-        // The command `sagemaker.parseCookies` is registered in VS Code Sagemaker environment.
-        const result = (await vscode.commands.executeCommand('sagemaker.parseCookies')) as SagemakerCookie
-        if (result.authMode !== 'Sso') {
-            initializeCredentialsProviderManager()
+        try {
+            // The command `sagemaker.parseCookies` is registered in VS Code Sagemaker environment.
+            const result = (await vscode.commands.executeCommand('sagemaker.parseCookies')) as SagemakerCookie
+            if (result.authMode !== 'Sso') {
+                initializeCredentialsProviderManager()
+            }
+        } catch (e) {
+            const errMsg = getErrorMsg(e as Error)
+            if (errMsg?.includes("command 'sagemaker.parseCookies' not found")) {
+                getLogger().warn(`Failed to execute command "sagemaker.parseCookies": ${e}`)
+            } else {
+                throw e
+            }
         }
     }
     Auth.instance.onDidChangeActiveConnection(async (conn) => {