Fixed three issues in the diagnostic output display:
1. Integer expression error: Changed from grep -c to wc -l with sanitization
to prevent "integer expression expected" errors from newlines
2. ANSI escape codes: Added -e flag to echo statement so color codes
render properly instead of showing as raw \033[2m sequences
3. Duplicate domains: Implemented two-pass deduplication system using
sort -u to show unique domains per issue pattern, preventing repetitive
output like showing the same domain 5 times
cschantz
f128219f05