FIX: Add error handling to standalone domain discovery and remove color codes

FIXES:
1. Added error handling (|| true) to get_standalone_user_domains()
   - Prevents script crash with set -eo pipefail on standalone servers
   - Function now always succeeds even if find fails
   - Prevents tmux session crashes

2. Removed all ANSI color codes from launcher output
   - Color codes were showing as raw \033[0;36m instead of rendering
   - Simplified output without color variables
   - Better compatibility with different terminal types
   - Cleaner output on all systems

Changes:
- lib/user-manager.sh: Added || true to prevent failures
- launcher.sh: Removed , , , etc. from output
  - show_banner(): Removed color codes
  - show_system_overview(): Removed color codes
  - show_main_menu(): Removed color codes

Impact:
- Standalone servers no longer crash when building reference database
- Output is clean and readable on all terminal types
- Detection/database building now completes successfully

Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>

lib/user-manager.sh

@@ -331,7 +331,7 @@ get_standalone_user_domains() {
 
     find "$home_dir" -maxdepth 2 \( -name "public_html" -o -name "html" \) -type d 2>/dev/null | \
         sed "s|${home_dir}/||; s|/public_html$||; s|/html$||" | \
-        grep -v "^$" | sort -u
+        grep -v "^$" | sort -u || true
 }
 
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