refactor: Extract Apple Silicon cache cleaning to a shared function and improve optimization summary calculation.

bin/clean.sh

@@ -650,15 +650,7 @@ perform_cleanup() {
     end_section
 
     # ===== 13. Apple Silicon optimizations =====
-    if [[ "$IS_M_SERIES" == "true" ]]; then
-        start_section "Apple Silicon updates"
-        safe_clean /Library/Apple/usr/share/rosetta/rosetta_update_bundle "Rosetta 2 cache"
-        safe_clean ~/Library/Caches/com.apple.rosetta.update "Rosetta 2 user cache"
-        safe_clean ~/Library/Caches/com.apple.amp.mediasevicesd "Apple Silicon media service cache"
-        # Skip: iCloud sync cache, may affect device pairing
-        # safe_clean ~/Library/Caches/com.apple.bird.lsuseractivity "User activity cache"
-        end_section
-    fi
+    clean_apple_silicon_caches
 
     # ===== 14. iOS device backups =====
     start_section "iOS device backups"

bin/optimize.sh

@@ -67,7 +67,8 @@ show_optimization_summary() {
     local summary_title="Optimization and Check Complete"
     local -a summary_details=()
 
-    summary_details+=("Applied ${GREEN}${safe_count:-0}${NC} optimizations; all system services tuned")
+    local total_applied=$((safe_count + confirm_count))
+    summary_details+=("Applied ${GREEN}${total_applied:-0}${NC} optimizations; all system services tuned")
     summary_details+=("Updates, security and system health fully reviewed")
 
     local summary_line4=""