Sample app - added initial docs, infra cleanup

Author: Seth

docs/sample_app_setup.md

@@ -0,0 +1,27 @@
+# Setup Sample Application
+
+> **Note:** Before proceeding, ensure you have completed the deployment steps described in the project `README.md`.
+
+## Post-Deployment Steps
+
+1. **Access AI Foundry**
+    - Connect to your VM jump box using Azure Bastion.
+    - Once connected, open AI Foundry.
+
+2. **Create a Data Source**
+    - In AI Foundry, create a new Data Source.
+    - Upload your data files to this Data Source.
+
+3. **Create an Index**
+    - In AI Foundry, create a new Index.
+    - Select the Data Source you just created.
+    - Choose the existing Azure Cognitive Search service and the deployed text embedding model.
+
+4. **Update App Service Environment Variable**
+    - After indexing completes, note the name of your new Index.
+    - Update the relevant environment variable in your Azure App Service configuration with this Index name.
+
+5. **Launch and Use the Application**
+    - Start your Azure App Service.
+    - Open the application and begin chatting with your data.
+

infra/main.bicep

@@ -475,7 +475,7 @@ module appService 'modules/appservice.bicep' = if (deploySampleApp) {
     }
     searchServiceConfiguration: {
       name: aiSearch.outputs.name
-      indexName: 'test'// aiSearchIndex.outputs.indexName // TODO
+      indexName: 'replace_with_manually_created_index'
     }
     cosmosDbConfiguration: {
       account: cosmosDb.outputs.name

infra/modules/storageAccount.bicep

@@ -60,7 +60,7 @@ module storageAccount 'br/public:avm/res/storage/storage-account:0.17.0' = {
     publicNetworkAccess: networkIsolation ? 'Disabled' : 'Enabled'
     accessTier: 'Hot'
     allowBlobPublicAccess: false
-    allowSharedKeyAccess: true // TODO - set to true for deployment script, may not need
+    allowSharedKeyAccess: false
     allowCrossTenantReplication: false
     minimumTlsVersion: 'TLS1_2'
     networkAcls: {