docs: archive entra materials and simplify deployment docs

docs/DEVELOPMENT_SETUP.md

@@ -40,11 +40,6 @@ pnpm dev
 2. Configure required variables:
 
    ```bash
-   # Azure Configuration
-   AZURE_SUBSCRIPTION_ID="your-subscription-id"
-   AZURE_TENANT_ID="your-tenant-id"
-   AZURE_LOCATION="westeurope"
-
    # Database
    DATABASE_URL="postgresql://user:pass@localhost:5432/theorder_dev"
 
@@ -52,10 +47,7 @@ pnpm dev
    REDIS_URL="redis://localhost:6379"
    ```
 
-3. Load environment:
-   ```bash
-   source infra/scripts/azure-load-env.sh
-   ```
+3. Load environment in your shell before running services.
 
 ## Development Workflow