fix(admin): fix Copy API Key behavior in secret key created dialog(#15529) (#15531)

fixes #15529 
## What
Fixes the copy behavior in the "Secret key created" dialog for secret API keys.

## Why
Copy could report success even when clipboard write failed (or when token was missing), causing users to paste incorrect content.

## How
- Added early return when `createdKey.token` is missing.
- Wrapped clipboard write in `try/catch`.
- Added secure-context and clipboard availability checks.
- Show success toast only on successful copy, failure toast on errors.

## Testing
- Created a secret key in Admin.
- Clicked `Copy API Key` and verified token is copied.
- Verified failure toast appears when clipboard API is unavailable.

closes #15529

Author: Tusharkhadde

.changeset/happy-cows-roll.md

@@ -0,0 +1,5 @@
+---
+"@medusajs/dashboard": patch
+---
+
+fix(dashboard): fix Copy API Key behavior in secret key created dialog

packages/admin/dashboard/src/routes/api-key-management/api-key-management-create/components/api-key-create-form/api-key-create-form.tsx

@@ -78,13 +78,22 @@ export const ApiKeyCreateForm = ({ keyType }: ApiKeyCreateFormProps) => {
     )
   })
 
-  const handleCopyToken = () => {
-    if (!createdKey) {
+  const handleCopyToken = async () => {
+    if (!createdKey?.token) {
       toast.error(t("apiKeyManagement.create.copySecretTokenFailure"))
+      return
     }
 
-    navigator.clipboard.writeText(createdKey?.token ?? "")
-    toast.success(t("apiKeyManagement.create.copySecretTokenSuccess"))
+    try {
+      if (!window.isSecureContext || !navigator.clipboard?.writeText) {
+        throw new Error("Clipboard API unavailable")
+      }
+
+      await navigator.clipboard.writeText(createdKey.token)
+      toast.success(t("apiKeyManagement.create.copySecretTokenSuccess"))
+    } catch {
+      toast.error(t("apiKeyManagement.create.copySecretTokenFailure"))
+    }
   }
 
   const handleGoToSecretKey = () => {
@@ -188,7 +197,9 @@ export const ApiKeyCreateForm = ({ keyType }: ApiKeyCreateFormProps) => {
               variant="secondary"
               type="button"
               className="w-full"
-              onClick={handleCopyToken}
+              onClick={() => {
+                void handleCopyToken()
+              }}
             >
               {t("apiKeyManagement.actions.copy")}
             </Button>