Simplify connect samples to only connect and read account metadata (#9)

## Summary

Simplifies the connect samples in all languages to only connect to the
account and perform a quick metadata read. CRUD operations
(create/upsert/query) have been removed from both samples.

## Changes

### .NET (`001-connect-passwordless`)
- Removed `Newtonsoft.Json` package dependency (no longer needed without
item types)
- Removed database creation, container creation, item upsert, and item
read
- Added `client.ReadAccountAsync()` to read and print the account name
- Updated readme: role changed from `Cosmos DB Built-in Data
Contributor` to `Cosmos DB Built-in Data Reader`; updated "What this
sample does" description

### Python (`002-connect-connection-string`)
- Removed `PartitionKey` import (no longer needed)
- Removed database creation, container creation, item upsert, and item
query
- Added `client.get_database_account()` to read and print the account
name
- Updated readme: updated "What this sample does" description

---------

Signed-off-by: Sidney Andrews <sidandrews@microsoft.com>
Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: seesharprun <5067401+seesharprun@users.noreply.github.com>
Co-authored-by: Sidney Andrews <sidandrews@microsoft.com>

Author: Copilot

dotnet/001-connect-passwordless/connect.cs

@@ -17,27 +17,5 @@
 var credential = new DefaultAzureCredential();
 var client = new CosmosClient(endpoint, credential);
 
-Database database = await client.CreateDatabaseIfNotExistsAsync("cosmicworks");
-Console.WriteLine($"Created/retrieved database: {database.Id}");
-
-Container container = await database.CreateContainerIfNotExistsAsync("products", "/category");
-Console.WriteLine($"Created/retrieved container: {container.Id}");
-
-Product newItem = new(
-    id: "70b63682-b93a-4c77-aad2-65501347265f",
-    category: "gear-surf-surfboards",
-    name: "Yamba Surfboard",
-    quantity: 12,
-    sale: false
-);
-
-ItemResponse<Product> createResponse = await container.UpsertItemAsync(newItem, new PartitionKey(newItem.category));
-Console.WriteLine($"Upserted item: {createResponse.Resource.id} (status: {createResponse.StatusCode})");
-
-ItemResponse<Product> readResponse = await container.ReadItemAsync<Product>(
-    newItem.id,
-    new PartitionKey(newItem.category)
-);
-Console.WriteLine($"Read item: {readResponse.Resource.name} | Quantity: {readResponse.Resource.quantity}");
-
-record Product(string id, string category, string name, int quantity, bool sale);
+AccountProperties account = await client.ReadAccountAsync();
+Console.WriteLine($"Account: {account.Id}");

dotnet/001-connect-passwordless/readme.md

@@ -13,13 +13,13 @@ This sample demonstrates how to authenticate to Azure Cosmos DB for NoSQL using
 
 ### 1. Assign the required role
 
-Grant your Azure AD identity the **Cosmos DB Built-in Data Contributor** role on your Cosmos DB account:
+Grant your Azure AD identity the **Cosmos DB Built-in Data Reader** role on your Cosmos DB account:
 
 ```bash
 az cosmosdb sql role assignment create \
   --account-name <cosmos-account-name> \
   --resource-group <resource-group> \
-  --role-definition-name "Cosmos DB Built-in Data Contributor" \
+  --role-definition-name "Cosmos DB Built-in Data Reader" \
   --principal-id $(az ad signed-in-user show --query id -o tsv) \
   --scope "/"
 ```
@@ -50,7 +50,4 @@ dotnet run connect.cs
 
 1. Reads `COSMOS_ENDPOINT` from user secrets (via `Microsoft.Extensions.Configuration.UserSecrets`)
 2. Authenticates using `DefaultAzureCredential` (Azure CLI / Managed Identity / etc.)
-3. Creates (or retrieves) a database named `cosmicworks`
-4. Creates (or retrieves) a container named `products` with partition key `/category`
-5. Creates a product item
-6. Reads the item back and prints its details
+3. Reads account metadata and prints the account name

python/002-connect-connection-string/app.py

@@ -1,6 +1,6 @@
 import os
 
-from azure.cosmos import CosmosClient, PartitionKey
+from azure.cosmos import CosmosClient
 
 endpoint = os.environ.get("COSMOS_ENDPOINT")
 if not endpoint:
@@ -12,29 +12,5 @@
 
 client = CosmosClient(url=endpoint, credential=key)
 
-database = client.create_database_if_not_exists("cosmicworks")
-print(f"Created/retrieved database: {database.id}")
-
-container = database.create_container_if_not_exists(
-    id="products",
-    partition_key=PartitionKey(path="/category"),
-)
-print(f"Created/retrieved container: {container.id}")
-
-new_item = {
-    "id": "70b63682-b93a-4c77-aad2-65501347265f",
-    "category": "gear-surf-surfboards",
-    "name": "Yamba Surfboard",
-    "quantity": 12,
-    "sale": False,
-}
-
-created = container.upsert_item(body=new_item)
-print(f"Upserted item: {created['id']}")
-
-query = "SELECT * FROM products p WHERE p.category = @category"
-parameters = [{"name": "@category", "value": "gear-surf-surfboards"}]
-
-items = list(container.query_items(query=query, parameters=parameters, enable_cross_partition_query=False))
-for item in items:
-    print(f"Read item: {item['name']} | Quantity: {item['quantity']} | Sale: {item['sale']}")
+account = client.get_database_account()
+print(f"Account: {account['id']}")

python/002-connect-connection-string/readme.md

@@ -35,7 +35,4 @@ You can find your endpoint and primary key in the Azure portal under your Cosmos
 
 1. Reads `COSMOS_ENDPOINT` and `COSMOS_KEY` from the environment
 2. Creates a `CosmosClient` using the endpoint and key
-3. Creates (or retrieves) a database named `cosmicworks`
-4. Creates (or retrieves) a container named `products` with partition key `/category`
-5. Creates a product item
-6. Queries items filtered by category and prints the results
+3. Reads account metadata and prints the account name