fix: Update gpt-image-1.5 deployment capacity to 4 in Bicep files and scripts

Author: Akhileswara-Microsoft

infra/main.bicep

@@ -137,7 +137,7 @@ param gpt5MiniModelCapacity int = 50
 @description('Optional. GPT image model deployment type. Defaults to GlobalStandard.')
 param gptImageModelDeploymentType string = 'GlobalStandard'
 
-@description('Optional. gpt-image-1.5 deployment capacity (RPM). Defaults to 1 to support concurrent marketing-image generation across multiple sessions.')
+@description('Optional. gpt-image-1.5 deployment capacity (RPM). Defaults to 4 to support concurrent marketing-image generation across multiple sessions.')
 param gptImageModelCapacity int = 4
 
 @description('Optional. The tags to apply to all deployed Azure resources.')

infra/main_custom.bicep

@@ -123,7 +123,7 @@ param gpt4_1ModelCapacity int = 150
 @description('Optional. o4-mini deployment capacity (thousand TPM). Used by the Magentic manager (multi-turn planning + reflection). Defaults to 100.')
 param gptReasoningModelCapacity int = 100
 
-@description('Optional. gpt-image-1.5 deployment capacity (RPM). Defaults to 1 to support concurrent marketing-image generation across multiple sessions.')
+@description('Optional. gpt-image-1.5 deployment capacity (RPM). Defaults to 4 to support concurrent marketing-image generation across multiple sessions.')
 param gptImageModelCapacity int = 4
 
 @description('Optional. The tags to apply to all deployed Azure resources.')

infra/scripts/checkquota.sh

@@ -13,7 +13,7 @@ echo "🔄 Validating required environment variables..."
 if [[ -z "$SUBSCRIPTION_ID" || -z "$REGIONS" ]]; then
     echo "❌ ERROR: Missing required environment variables."
     echo "Required: AZURE_SUBSCRIPTION_ID, AZURE_REGIONS"
-    echo "Optional: O4_MINI_MIN_CAPACITY (default: 50), GPT41_MINI_MIN_CAPACITY (default: 50), GPT_IMAGE_MIN_CAPACITY (default: 1)"
+    echo "Optional: O4_MINI_MIN_CAPACITY (default: 50), GPT41_MINI_MIN_CAPACITY (default: 50), GPT_IMAGE_MIN_CAPACITY (default: 4)"
     exit 1
 fi