fix: add OS labels to post-deployment script instructions

Add Windows/Linux/macOS/WSL labels next to PowerShell and Bash script
commands so non-technical users know which script to use for their OS.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: Abdul-Microsoft

docs/LOCAL_DEPLOYMENT.md

@@ -293,12 +293,12 @@ After successful deployment, locate your application URLs:
 
 After deployment completes, run the post-deployment script to configure the Function App client key and create PostgreSQL tables (if applicable):
 
-**PowerShell:**
+**PowerShell (Windows):**
 ```powershell
 ./scripts/post_deployment_setup.ps1 -ResourceGroupName "<your-resource-group-name>"
 ```
 
-**Bash:**
+**Bash (Linux/macOS/WSL):**
 ```bash
 bash scripts/post_deployment_setup.sh "<your-resource-group-name>"
 ```

docs/NON_DEVCONTAINER_SETUP.md

@@ -57,12 +57,12 @@ The Azure Developer CLI (`azd`) is a developer-centric command-line interface (C
 
 1. Run the post-deployment setup script:
 
-    **PowerShell:**
+    **PowerShell (Windows):**
     ```powershell
     ./scripts/post_deployment_setup.ps1 -ResourceGroupName "<your-resource-group-name>"
     ```
 
-    **Bash:**
+    **Bash (Linux/macOS/WSL):**
     ```bash
     bash scripts/post_deployment_setup.sh "<your-resource-group-name>"
     ```