Fix functional issues found during comprehensive testing

- Fix sf-retrieve: Replace xargs with Bash parameter expansion for whitespace
  trimming to avoid 'unterminated quote' errors when processing comma-separated
  metadata types containing quotes or special characters

- Fix sf-apex-run: Replace invalid JavaScript-style ternary operator with proper
  Bash conditional logic for code truncation display

All bash scripts now work correctly with real parameter combinations against
live Salesforce orgs. Testing performed against PWC-TEAM-DEV org confirmed
all functionality works as documented in README.md

sf-apex-run

@@ -181,7 +181,11 @@ if [[ -n "$APEX_FILE" ]]; then
     echo "   Lines: $(wc -l < "$APEX_FILE")"
   fi
 elif [[ -n "$APEX_CODE" ]]; then
-  echo "   Code: ${APEX_CODE:0:50}${#APEX_CODE > 50 ? '...' : ''}"
+  if [[ ${#APEX_CODE} -gt 50 ]]; then
+    echo "   Code: ${APEX_CODE:0:50}..."
+  else
+    echo "   Code: $APEX_CODE"
+  fi
 fi
 echo
 

sf-retrieve

@@ -211,13 +211,17 @@ if [[ -n "$TYPES" ]]; then
   IFS=',' read -ra TYPES_ARR <<< "$TYPES"
   
   for TYPE in "${TYPES_ARR[@]}"; do
-    TYPE=$(echo "$TYPE" | xargs)  # Trim whitespace
+    # Trim whitespace using parameter expansion instead of xargs
+    TYPE="${TYPE#"${TYPE%%[![:space:]]*}"}"
+    TYPE="${TYPE%"${TYPE##*[![:space:]]}"}" 
     if [[ -n "$TYPE" ]]; then
       if [[ -n "$NAMES" ]]; then
         # If names are specified, add each name for this type
         IFS=',' read -ra NAMES_ARR <<< "$NAMES"
         for NAME in "${NAMES_ARR[@]}"; do
-          NAME=$(echo "$NAME" | xargs)  # Trim whitespace
+          # Trim whitespace using parameter expansion instead of xargs
+          NAME="${NAME#"${NAME%%[![:space:]]*}"}"
+          NAME="${NAME%"${NAME##*[![:space:]]}"}"
           if [[ -n "$NAME" ]]; then
             CMD+=(--metadata "$TYPE:$NAME")
           fi