♻️ refactor(core): 移除 brew-cu 扩展并优化升级流程结构

homebrew/brew-upgrade-manager.sh

@@ -90,18 +90,7 @@ separator
 printf "\n"
 
 separator
-print_header "Step 3: Verifying brew-cu extension for GUI Apps"
-if ! brew tap | grep -q "buo/cask-upgrade"; then
-    echo -e "${YELLOW}Extension 'brew-cu' not found. Installing now...${NC}"
-    brew tap buo/cask-upgrade
-else
-    echo -e "${GREEN}Extension 'brew-cu' is already active.${NC}"
-fi
-separator
-printf "\n"
-
-separator
-print_header "Step 4: Executing comprehensive upgrades (Formulae & Casks)"
+print_header "Step 3: Executing comprehensive upgrades (Formulae & Casks)"
 echo -e "${NC}"
 
 # 1. 升级命令行工具 (Formulae)
@@ -125,7 +114,7 @@ separator
 printf "\n"
 
 separator
-print_header "Step 5: Cleaning up old files and caches (brew cleanup --prune=all)"
+print_header "Step 4: Cleaning up old files and caches (brew cleanup --prune=all)"
 brew cleanup --prune=all
 separator
 printf "\n"