Refactor CI/CD workflows to remove input parameters and use secrets for image tag and Kubernetes configurations

.github/workflows/ci.yml

@@ -10,12 +10,6 @@ on:
     branches:
       - dev
   workflow_dispatch:
-    inputs:
-      image_tag:
-        description: 'Docker image tag (e.g., latest, v1.0.0)'
-        required: false
-        default: 'latest'
-        type: string
 
 # Environment variables available to all jobs
 env:
@@ -24,7 +18,7 @@ env:
   CONTAINER_REGISTRY_NAMESPACE: ${{ secrets.CONTAINER_REGISTRY_NAMESPACE }}
   CONTAINER_REGISTRY_PASSWORD: ${{ secrets.CONTAINER_REGISTRY_PASSWORD }}
   CONTAINER_IMAGE_NAME: ${{ secrets.CONTAINER_IMAGE_NAME }}
-  CONTAINER_IMAGE_TAG: ${{ inputs.image_tag || 'latest' }}
+  CONTAINER_IMAGE_TAG: ${{ secrets.CONTAINER_IMAGE_TAG }}
 
 jobs:
   build-and-push: