Add Azure credits notification message. (#2201)

This adds a message when loaded saved workspaces on first extension
activation alerting users the expiring Azure Quantum Credits program.

Author: swernli

vscode/src/azure/commands.ts

@@ -41,6 +41,19 @@ export async function initAzureWorkspaces(context: vscode.ExtensionContext) {
   // Add any previously saved workspaces
   const savedWorkspaces = await context.secrets.get(workspacesSecret);
   if (savedWorkspaces) {
+    if (context.globalState.get<boolean>("showAzureCreditsWarning", true)) {
+      // Temporary reminder message that Azure Quantum Credits will be deprecated.
+      const choice = vscode.window.showInformationMessage(
+        `Azure Quantum Credits will no longer be available after June 1st, 2025.`,
+        `Don't show again`,
+      );
+      choice.then((c) => {
+        if (c === `Don't show again`) {
+          context.globalState.update("showAzureCreditsWarning", false);
+        }
+      });
+    }
+
     log.debug("Loading workspaces: ", savedWorkspaces);
     const workspaces: WorkspaceConnection[] = JSON.parse(savedWorkspaces);
     for (const workspace of workspaces) {