Migrate backend to herdr using a seamless translation shim wrapper

deploy/install_mam.sh

@@ -83,7 +83,7 @@ fi
 
 # 1. Dependency Checks
 log_info "Verifying host dependencies..."
-DEPS=(tmux python3 rsync uuidgen)
+DEPS=(herdr python3 rsync uuidgen)
 MISSING_DEPS=()
 for dep in "${DEPS[@]}"; do
   if ! command -v "$dep" &>/dev/null; then
@@ -93,6 +93,10 @@ done
 
 if [ ${#MISSING_DEPS[@]} -ne 0 ]; then
   log_error "Missing required dependencies: ${MISSING_DEPS[*]}"
+  if [[ " ${MISSING_DEPS[*]} " == *" herdr "* ]]; then
+    log_error "To install herdr, please refer to the official installation guide:"
+    log_error "  curl -fsSL https://herdr.dev/install.sh | sh"
+  fi
   log_error "Please install them before using MAM."
   exit 1
 fi