refactor(utils): improve whiptail dialogs and logging utilities

- add adaptive terminal sizing for all whiptail dialogs (wt_get_size)
- add new wrapper functions: wt_checklist, wt_radiolist, wt_menu
- add safe parser wt_parse_choices to replace eval
- improve NEWT_COLORS theme with better contrast (brightgreen/brightcyan)
- add new logging functions: log_header, log_subheader, log_divider, log_box
- add spinner animation utilities for progress indication
- expand color palette with bright variants and text styles
- update 04_wizard.sh to use new whiptail wrappers

scripts/update_preview.sh

@@ -12,12 +12,9 @@ init_paths
 # Load environment variables
 load_env || exit 1
 
+log_box "Update Preview (Dry Run)"
 echo ""
-echo "========================================"
-echo "  Update Preview (Dry Run)"
-echo "========================================"
-echo ""
-echo "Checking for available updates..."
+echo -e "  ${CYAN}Checking for available updates...${NC}"
 echo ""
 
 # Function to get local image digest
@@ -74,108 +71,84 @@ log_info "Scanning images from docker-compose.yml..."
 echo ""
 
 # Core services (always checked)
-echo "Core Services:"
-echo "--------------"
+log_subheader "Core Services"
 check_image_update "postgres" "postgres:${POSTGRES_VERSION:-17}-alpine"
 check_image_update "redis" "valkey/valkey:8-alpine"
 check_image_update "caddy" "caddy:2-alpine"
-echo ""
 
 # Check n8n if profile is active
 if is_profile_active "n8n"; then
-    echo "n8n Services:"
-    echo "-------------"
+    log_subheader "n8n Services"
     check_image_update "n8n" "docker.n8n.io/n8nio/n8n:${N8N_VERSION:-latest}"
     check_image_update "n8n-runner" "n8nio/runners:${N8N_VERSION:-latest}"
-    echo ""
 fi
 
 # Check monitoring if profile is active
 if is_profile_active "monitoring"; then
-    echo "Monitoring Services:"
-    echo "--------------------"
+    log_subheader "Monitoring Services"
     check_image_update "grafana" "grafana/grafana:latest"
     check_image_update "prometheus" "prom/prometheus:latest"
     check_image_update "node-exporter" "prom/node-exporter:latest"
     check_image_update "cadvisor" "gcr.io/cadvisor/cadvisor:latest"
-    echo ""
 fi
 
 # Check other common services
 if is_profile_active "flowise"; then
-    echo "Flowise:"
-    echo "--------"
+    log_subheader "Flowise"
     check_image_update "flowise" "flowiseai/flowise:latest"
-    echo ""
 fi
 
 if is_profile_active "open-webui"; then
-    echo "Open WebUI:"
-    echo "-----------"
+    log_subheader "Open WebUI"
     check_image_update "open-webui" "ghcr.io/open-webui/open-webui:main"
-    echo ""
 fi
 
 if is_profile_active "portainer"; then
-    echo "Portainer:"
-    echo "----------"
+    log_subheader "Portainer"
     check_image_update "portainer" "portainer/portainer-ce:latest"
-    echo ""
 fi
 
 if is_profile_active "langfuse"; then
-    echo "Langfuse:"
-    echo "---------"
+    log_subheader "Langfuse"
     check_image_update "langfuse-web" "langfuse/langfuse:latest"
     check_image_update "langfuse-worker" "langfuse/langfuse-worker:latest"
-    echo ""
 fi
 
 if is_profile_active "cpu" || is_profile_active "gpu-nvidia" || is_profile_active "gpu-amd"; then
-    echo "Ollama:"
-    echo "-------"
+    log_subheader "Ollama"
     check_image_update "ollama" "ollama/ollama:latest"
-    echo ""
 fi
 
 if is_profile_active "qdrant"; then
-    echo "Qdrant:"
-    echo "-------"
+    log_subheader "Qdrant"
     check_image_update "qdrant" "qdrant/qdrant:latest"
-    echo ""
 fi
 
 if is_profile_active "searxng"; then
-    echo "SearXNG:"
-    echo "--------"
+    log_subheader "SearXNG"
     check_image_update "searxng" "searxng/searxng:latest"
-    echo ""
 fi
 
 if is_profile_active "postgresus"; then
-    echo "Postgresus:"
-    echo "-----------"
+    log_subheader "Postgresus"
     check_image_update "postgresus" "ghcr.io/postgresus/postgresus:latest"
-    echo ""
 fi
 
 # Summary
-echo "========================================"
-echo "  Summary"
-echo "========================================"
+log_divider
 echo ""
 
 if [ $UPDATES_AVAILABLE -gt 0 ]; then
-    echo -e "${GREEN}$UPDATES_AVAILABLE update(s) available.${NC}"
+    echo -e "  ${BRIGHT_GREEN}$UPDATES_AVAILABLE update(s) available!${NC}"
     echo ""
-    echo "To apply updates, run:"
-    echo "  make update"
+    echo -e "  ${WHITE}To apply updates, run:${NC}"
+    echo -e "    ${CYAN}make update${NC}"
     echo ""
-    echo "Or manually:"
-    echo "  docker compose -p localai pull"
-    echo "  docker compose -p localai up -d"
+    echo -e "  ${DIM}Or manually:${NC}"
+    echo -e "    ${DIM}docker compose -p localai pull${NC}"
+    echo -e "    ${DIM}docker compose -p localai up -d${NC}"
 else
-    echo -e "${GREEN}All images are up to date!${NC}"
+    echo -e "  ${BRIGHT_GREEN}All images are up to date!${NC}"
 fi
 
 echo ""