Refactor secret generation script to improve variable management

- Moved the declaration of the generated_values associative array to a more appropriate location in 03_generate_secrets.sh for better organization.
- Removed redundant declaration of generated_values to streamline the script's logic and enhance readability.

scripts/03_generate_secrets.sh

@@ -53,6 +53,7 @@ declare -A VARS_TO_GENERATE=(
 # Initialize existing_env_vars and attempt to read .env if it exists
 log_info "Initializing environment configuration..."
 declare -A existing_env_vars
+declare -A generated_values
 
 if [ -f "$OUTPUT_FILE" ]; then
     log_info "Found existing $OUTPUT_FILE. Reading its values to use as defaults and preserve current settings."
@@ -325,9 +326,6 @@ if [ ! -f "$TEMPLATE_FILE" ]; then
     exit 1
 fi
 
-# Associative array to store generated values
-declare -A generated_values
-
 # Pre-populate generated_values with non-empty values from existing_env_vars
 for key_from_existing in "${!existing_env_vars[@]}"; do
     if [[ -n "${existing_env_vars[$key_from_existing]}" ]]; then