fix: address mo update hanging and imporve temporary file reliability

lib/core/base.sh

@@ -512,7 +512,7 @@ declare -a MOLE_TEMP_DIRS=()
 create_temp_file() {
     local temp
     temp=$(mktemp) || return 1
-    MOLE_TEMP_FILES+=("$temp")
+    register_temp_file "$temp"
     echo "$temp"
 }
 
@@ -520,7 +520,7 @@ create_temp_file() {
 create_temp_dir() {
     local temp
     temp=$(mktemp -d) || return 1
-    MOLE_TEMP_DIRS+=("$temp")
+    register_temp_dir "$temp"
     echo "$temp"
 }
 
@@ -538,9 +538,12 @@ register_temp_dir() {
 # Compatible with both BSD mktemp (macOS default) and GNU mktemp (coreutils)
 mktemp_file() {
     local prefix="${1:-mole}"
+    local temp
     # Use TMPDIR if set, otherwise /tmp
     # Add .XXXXXX suffix to work with both BSD and GNU mktemp
-    mktemp "${TMPDIR:-/tmp}/${prefix}.XXXXXX"
+    temp=$(mktemp "${TMPDIR:-/tmp}/${prefix}.XXXXXX") || return 1
+    register_temp_file "$temp"
+    echo "$temp"
 }
 
 # Cleanup all tracked temp files and directories

lib/core/common.sh

@@ -34,7 +34,7 @@ update_via_homebrew() {
     temp_upgrade=$(mktemp_file "brew_upgrade")
 
     # Set up trap for interruption (Ctrl+C) with inline cleanup
-    trap 'stop_inline_spinner 2>/dev/null; rm -f "$temp_update" "$temp_upgrade" 2>/dev/null; echo ""; exit 130' INT TERM
+    trap "stop_inline_spinner 2>/dev/null; rm -f \"$temp_update\" \"$temp_upgrade\" 2>/dev/null; echo \"\"; exit 130" INT TERM
 
     # Update Homebrew
     if [[ -t 1 ]]; then