Add python shiny express oauth test app

local/python-shiny-express-oauth-app/app.py

@@ -0,0 +1,11 @@
+from posit import connect
+from shiny.express import render, session
+
+# Runs once per startup
+client = connect.Client()
+
+# Runs once per session
+@render.text
+def access_token():
+    user_session_token = session.http_conn.headers.get("Posit-Connect-User-Session-Token")
+    return client.oauth.get_credentials(user_session_token).get("access_token")

local/python-shiny-express-oauth-app/manifest.json

@@ -0,0 +1,24 @@
+{
+  "version": 1,
+  "locale": "en_US.UTF-8",
+  "metadata": {
+    "appmode": "python-shiny",
+    "entrypoint": "shiny.express.app:app_2e_py"
+  },
+  "python": {
+    "version": "3.11.3",
+    "package_manager": {
+      "name": "pip",
+      "version": "24.1.1",
+      "package_file": "requirements.txt"
+    }
+  },
+  "files": {
+    "requirements.txt": {
+      "checksum": "ef98e3be14a319ebb9f1d215e1df58ea"
+    },
+    "app.py": {
+      "checksum": "4ee2ac2b5117b68af1c69536e9c0f9f0"
+    }
+  }
+}

local/python-shiny-express-oauth-app/requirements.txt

@@ -0,0 +1,2 @@
+posit-sdk==0.3.1
+shiny==1.0.0