feat: Enhance Linux ID modifier with advanced file modification checks

- Improved random ID generation to ensure single-line output
- Added chattr attribute removal for immutable files before modification
- Enhanced file modification reliability by handling read-only file attributes
- Implemented pre-modification checks to prevent potential configuration errors

scripts/run/cursor_linux_id_modifier.sh

@@ -152,8 +152,8 @@ backup_config() {
 
 # 生成随机 ID
 generate_random_id() {
-    # 生成32字节(64个十六进制字符)的随机数
+    # 生成32字节(64个十六进制字符)的随机数，并确保一行输出
-    head -c 32 /dev/urandom | xxd -p
+    head -c 32 /dev/urandom | xxd -p -c 32
 }
 
 # 生成随机 UUID
@@ -176,6 +176,15 @@ modify_or_add_config() {
         return 1
     fi
     
+    # 检查并移除chattr只读属性（如果存在）
+    if lsattr "$file" 2>/dev/null | grep -q '^....i'; then
+        log_debug "移除文件不可变属性..."
+        sudo chattr -i "$file" || {
+            log_error "无法移除文件不可变属性"
+            return 1
+        }
+    fi
+    
     # 确保文件可写
     chmod 644 "$file" || {
         log_error "无法修改文件权限: $file"