sync copilot sdk feature branch with mainline

.devcontainer/devcontainer.json

@@ -0,0 +1,13 @@
+{
+  "image": "mcr.microsoft.com/devcontainers/universal:2",
+  "postCreateCommand": "npm i -g azure-functions-core-tools@4 --unsafe-perm true",
+  "forwardPorts": [7072, 8080],
+  "portsAttributes": {
+    "7072": {
+      "label": "Function API"
+    },
+    "8080": {
+      "label": "React Client"
+    }
+  }
+}

.vscode/settings.json

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+{
+    "githubPullRequests.ignoredPullRequestBranches": [
+        "main"
+    ]
+}

Bruno/README.md

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+This Bruno collection as exported from v2.1.0. You must use this version or higher to import this collection.

Bruno/template.bruno_environment.json

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+{
+	"id": "2e179e7e-059e-45ba-9d67-3bb31628a397",
+	"name": "SharePoint Embedded Bruno environment template",
+	"values": [
+		{
+			"key": "ClientID",
+			"value": "",
+			"type": "default",
+			"enabled": true
+		},
+		{
+			"key": "ClientSecret",
+			"value": "",
+			"type": "secret",
+			"enabled": true
+		},
+		{
+			"key": "ConsumingTenantId",
+			"value": "",
+			"type": "default",
+			"enabled": true
+		},
+		{
+			"key": "RootSiteUrl",
+			"value": "",
+			"type": "default",
+			"enabled": true
+		},
+		{
+			"key": "ContainerTypeId",
+			"value": "",
+			"type": "default",
+			"enabled": true
+		},
+		{
+			"key": "TenantName",
+			"value": "",
+			"type": "default",
+			"enabled": true
+		},
+		{
+			"key": "CertThumbprint",
+			"value": "",
+			"type": "default",
+			"enabled": true
+		},
+		{
+			"key": "CertPrivateKey",
+			"value": "",
+			"type": "secret",
+			"enabled": true
+		}
+	],
+	"_postman_variable_scope": "environment",
+	"_postman_exported_at": "2023-08-24T12:51:58.255Z",
+	"_postman_exported_using": "Postman/10.17.3"
+}