use stack name to create the directory exclusively for current stack

action.yml

@@ -1,10 +1,13 @@
 name: 'Prepare Remote NFS Directories'
 description: |
   Creates specified directories on a remote NFS-mounted server via SSH.
-  Optionally prefixes directories with a provided short SHA to isolate deployments.
+  Uses stack_name and optional short SHA to isolate deployments.
   Skips execution if no directories are specified.
 
 inputs:
+  stack_name:
+    description: 'Stack name to prefix remote directories'
+    required: true
   ssh_host:
     description: 'SSH host of the remote server'
     required: true
@@ -49,7 +52,8 @@ runs:
         echo "DEBUG: Remote host: ${{ inputs.ssh_host }}"
         echo "DEBUG: Remote user: ${{ inputs.ssh_user }}"
         echo "DEBUG: Remote base path: ${{ inputs.remote_base_path }}"
-        echo "DEBUG: Directory prefix: '${{ inputs.dir_prefix }}'"
+        echo "DEBUG: Stack name: ${{ inputs.stack_name }}"
+        echo "DEBUG: Directory prefix (short SHA): '${{ inputs.dir_prefix }}'"
 
         if [ -z "${{ inputs.directories }}" ]; then
           echo "DEBUG: No directories specified. Skipping directory creation."
@@ -63,18 +67,24 @@ runs:
         echo "DEBUG: Temporary SSH key created at $SSH_KEY_FILE"
 
         CREATED_PATHS=""
-        PREFIX="${{ inputs.dir_prefix }}"
         REMOTE_BASE="${{ inputs.remote_base_path }}"
+        STACK_NAME="${{ inputs.stack_name }}"
+        PREFIX="${{ inputs.dir_prefix }}"
+
+        # Build the root directory path
+        if [ -n "$PREFIX" ]; then
+          ROOT_DIR="$REMOTE_BASE/${STACK_NAME}-${PREFIX}"
+        else
+          ROOT_DIR="$REMOTE_BASE/${STACK_NAME}"
+        fi
+
+        echo "DEBUG: Root remote directory: '$ROOT_DIR'"
 
         while IFS= read -r LOCAL_DIR || [ -n "$LOCAL_DIR" ]; do
           echo "DEBUG: Processing local directory: '$LOCAL_DIR'"
 
           if [ -d "$LOCAL_DIR" ]; then
-            REMOTE_DIR="$REMOTE_BASE"
-            if [ -n "$PREFIX" ]; then
-              REMOTE_DIR="$REMOTE_DIR/$PREFIX"
-            fi
-            REMOTE_DIR="$REMOTE_DIR/$LOCAL_DIR"
+            REMOTE_DIR="$ROOT_DIR/$LOCAL_DIR"
 
             echo "DEBUG: Ensuring remote directory exists: '$REMOTE_DIR'"
             ssh -o StrictHostKeyChecking=no -i "$SSH_KEY_FILE" \