Add AspireExport coverage for Aspire.Hosting.Azure.Storage (#14420)

* Add AspireExport coverage for Aspire.Hosting.Azure.Storage

Add [AspireExport] attributes to 15 public extension methods and
[AspireExportIgnore] to 2 incompatible methods in AzureStorageExtensions.cs,
enabling polyglot (TypeScript) app host support for Azure Storage.

Exported methods:
- addAzureStorage, runAsEmulator
- withDataBindMount, withDataVolume
- withBlobPort, withQueuePort, withTablePort, withApiVersionCheck
- addBlobs, addDataLake, addTables, addQueues
- addBlobContainer, addDataLakeFileSystem, addQueue

Ignored methods:
- AddBlobContainer(AzureBlobStorageResource) - obsolete
- WithRoleAssignments - params StorageBuiltInRole[] not ATS-compatible

Includes TypeScript validation app host in playground/polyglot.

* Remove .aspire/ folders from playground/polyglot tracking

Remove the gitignore un-ignore rule for playground/polyglot/**/.aspire/
so these machine-specific settings (channels, SDK versions, local paths)
are not tracked. The global .aspire/ ignore rule now applies uniformly.

* Fix review

Author: sebastienros

playground/polyglot/TypeScript/Aspire.Hosting.Azure.Storage/ValidationAppHost/.aspire/settings.json

@@ -0,0 +1,9 @@
+{
+  "appHostPath": "../apphost.ts",
+  "language": "typescript/nodejs",
+  "channel": "pr-13970",
+  "sdkVersion": "13.2.0-pr.13970.g9fb24263",
+  "packages": {
+    "Aspire.Hosting.Azure.Storage": "13.2.0-pr.13970.g9fb24263"
+  }
+}

playground/polyglot/TypeScript/Aspire.Hosting.Azure.Storage/ValidationAppHost/apphost.run.json

@@ -0,0 +1,13 @@
+{
+  "profiles": {
+    "https": {
+      "applicationUrl": "https://localhost:52066;http://localhost:47700",
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development",
+        "DOTNET_ENVIRONMENT": "Development",
+        "ASPIRE_DASHBOARD_OTLP_ENDPOINT_URL": "https://localhost:62976",
+        "ASPIRE_RESOURCE_SERVICE_ENDPOINT_URL": "https://localhost:34207"
+      }
+    }
+  }
+}

playground/polyglot/TypeScript/Aspire.Hosting.Azure.Storage/ValidationAppHost/apphost.ts

@@ -0,0 +1,25 @@
+import { createBuilder } from './.modules/aspire.js';
+
+const builder = await createBuilder();
+
+const storage = await builder.addAzureStorage("storage");
+await storage.runAsEmulator();
+
+// Callbacks are currently not working
+// await storage.runAsEmulator({
+//     configureContainer: async (emulator) => {
+//         await emulator.withBlobPort(10000);
+//         await emulator.withQueuePort(10001);
+//         await emulator.withTablePort(10002);
+//         await emulator.withDataVolume();
+//         await emulator.withApiVersionCheck({ enable: false });
+//     }
+// });
+
+await storage.addBlobs("blobs");
+await storage.addTables("tables");
+await storage.addQueues("queues");
+await storage.addQueue("orders");
+await storage.addBlobContainer("images");
+
+await builder.build().run();