feat: Boost UI performance with pure bash string width calculation and truncation, and add visual feedback for cache hits in uninstall scripts.

bin/uninstall_lib.sh

@@ -83,6 +83,12 @@ scan_applications() {
         [[ $cache_age -eq $(date +%s) ]] && cache_age=86401 # Handle missing file
         if [[ $cache_age -lt $cache_ttl ]]; then
             # Cache hit - return immediately
+            # Show brief flash of cache usage if in interactive mode
+            if [[ -t 2 ]]; then
+                 echo -e "${GREEN}Loading from cache...${NC}" >&2
+                 # Small sleep to let user see it (optional, but good for "feeling" the speed vs glitch)
+                 sleep 0.3
+            fi
             echo "$cache_file"
             return 0
         fi