Update README and restructure code

lib/log.sh

@@ -13,22 +13,11 @@ if [ ! -w "$LOG_FILE" ]; then
     exit 1
 fi
 
-# Function to add timestamp to log file
-add_timestamp() {
-    echo -e "\n========== $(date '+%Y-%m-%d %H:%M:%S') ==========" >> "$LOG_FILE"
+# Function to strip ANSI color codes
+strip_colors() {
+    sed -r "s/\x1B\[([0-9]{1,3}(;[0-9]{1,2})?)?[mGK]//g"
 }
 
-# Save original file descriptors
-exec 3>&1
-exec 4>&2
-
-# Add timestamp to log file
-add_timestamp
-
-# Setup logging while preserving read -p functionality:
-# Use process substitution for logging
-exec 1> >(tee >(sed 's/\x1B\[[0-9;]*[JKmsu]//g' >> "$LOG_FILE"))
-exec 2> >(tee >(sed 's/\x1B\[[0-9;]*[JKmsu]//g' >> "$LOG_FILE"))
-
-# Restore original stdout for read commands
-export BASH_READ_FD=3
+# Redirect all output to both the terminal and the log file (without colors)
+exec > >(tee -a >(strip_colors >> "$LOG_FILE"))
+exec 2> >(tee -a >(strip_colors >> "$LOG_FILE") >&2)