chore: polish PR #197 and add Xcode Archives whitelist option

- Remove duplicate comment in project.sh
- Fix color code issue in purge.sh help message
- Add proper spacing after load_purge_config function
- Add shell syntax highlighting in README code block
- Add Xcode Archives to whitelist options (fixes #195)

lib/clean/project.sh

@@ -26,8 +26,7 @@ readonly MIN_AGE_DAYS=7
 # Scan depth defaults (relative to search root)
 readonly PURGE_MIN_DEPTH_DEFAULT=2
 readonly PURGE_MAX_DEPTH_DEFAULT=8
-# Search paths (only project directories)
-# Search paths (default)
+# Search paths (default, can be overridden via config file)
 readonly DEFAULT_PURGE_SEARCH_PATHS=(
     "$HOME/www"
     "$HOME/dev"
@@ -70,8 +69,9 @@ load_purge_config() {
     fi
 }
 
-# Initialize paths
+# Initialize paths on script load
 load_purge_config
+
 # Args: $1 - path to check
 # Check if path is safe to clean (must be inside a project directory)
 is_safe_project_artifact() {

lib/manage/whitelist.sh

@@ -81,6 +81,7 @@ Apple Mail cache|$HOME/Library/Caches/com.apple.mail/*|system_cache
 Gradle build cache (Android Studio, Gradle projects)|$HOME/.gradle/caches/*|ide_cache
 Gradle daemon processes cache|$HOME/.gradle/daemon/*|ide_cache
 Xcode DerivedData (build outputs, indexes)|$HOME/Library/Developer/Xcode/DerivedData/*|ide_cache
+Xcode archives (built app packages)|$HOME/Library/Developer/Xcode/Archives/*|ide_cache
 Xcode internal cache files|$HOME/Library/Caches/com.apple.dt.Xcode/*|ide_cache
 Xcode iOS device support symbols|$HOME/Library/Developer/Xcode/iOS DeviceSupport/*/Symbols/System/Library/Caches/*|ide_cache
 Maven local repository (Java dependencies)|$HOME/.m2/repository/*|ide_cache