fix: use loose regex for IP and mask input

1. Add loose edit-time regex (ipEditRegExp, maskEditRegExp) that
   only allows digits and dots
2. Replace strict validators with loose ones on IP address,
   subnet mask, and gateway input fields
3. Allow users to type incomplete IP/mask values during editing
   without being blocked by validation

Log: Use permissive input regex for IPv4 address and subnet mask fields

fix: 使用宽松正则校验IP和子网掩码输入

1. 新增编辑时宽松正则(ipEditRegExp, maskEditRegExp)，仅允许数字和点
2. 将IP地址、子网掩码和网关输入框的校验器替换为宽松正则
3. 允许用户在编辑过程中输入不完整的IP/掩码值，不被严格校验阻断

Log: IPv4地址和子网掩码输入框使用宽松正则校验
PMS: BUG-361211

Author: MyLeeJiEun

dcc-network/qml/NetUtils.js

@@ -1,5 +1,5 @@
 .pragma library
-// SPDX-FileCopyrightText: 2024 - 2027 UnionTech Software Technology Co., Ltd.
+// SPDX-FileCopyrightText: 2024 - 2026 UnionTech Software Technology Co., Ltd.
 // SPDX-License-Identifier: GPL-3.0-or-later
 const VpnTypeEnum = Object.freeze({
                                       "l2tp": 0x01,
@@ -12,9 +12,13 @@ const VpnTypeEnum = Object.freeze({
                                   })
 // ip正则表达式
 const ipRegExp = /^((25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?))$/
+// ip编辑时宽松正则（仅允许数字和点）
+const ipEditRegExp = /^[0-9.]*$/
 const ipv6RegExp = /^(((([0-9A-Fa-f]{1,4}:){7}([0-9A-Fa-f]{1,4}|:))|(([0-9A-Fa-f]{1,4}:){6}(:[0-9A-Fa-f]{1,4}|((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3})|:))|(([0-9A-Fa-f]{1,4}:){5}(((:[0-9A-Fa-f]{1,4}){1,2})|:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3})|:))|(([0-9A-Fa-f]{1,4}:){4}(((:[0-9A-Fa-f]{1,4}){1,3})|((:[0-9A-Fa-f]{1,4})?:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(([0-9A-Fa-f]{1,4}:){3}(((:[0-9A-Fa-f]{1,4}){1,4})|((:[0-9A-Fa-f]{1,4}){0,2}:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(([0-9A-Fa-f]{1,4}:){2}(((:[0-9A-Fa-f]{1,4}){1,5})|((:[0-9A-Fa-f]{1,4}){0,3}:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(([0-9A-Fa-f]{1,4}:){1}(((:[0-9A-Fa-f]{1,4}){1,6})|((:[0-9A-Fa-f]{1,4}){0,4}:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(:(((:[0-9A-Fa-f]{1,4}){1,7})|((:[0-9A-Fa-f]{1,4}){0,5}:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))))$/
 // 子网掩码
 const maskRegExp = /(254|252|248|240|224|192|128|0)\.0\.0\.0|255\.(254|252|248|240|224|192|128|0)\.0\.0|255\.255\.(254|252|248|240|224|192|128|0)\.0|255\.255\.255\.(254|252|248|240|224|192|128|0)/
+// 子网掩码编辑时宽松正则（仅允许数字和点）
+const maskEditRegExp = /^[0-9.]*$/
 // MAC正则表达式
 const macRegExp = /([0-9A-Fa-f]{2}[:-]){5}([0-9A-Fa-f]{2})/
 

dcc-network/qml/SectionIPv4.qml

@@ -340,7 +340,7 @@ DccObject {
                     page: D.LineEdit {
                         text: addressData.length > index ? addressData[index][0] : "0.0.0.0"
                         validator: RegularExpressionValidator {
-                            regularExpression: NetUtils.ipRegExp
+                            regularExpression: NetUtils.ipEditRegExp
                         }
                         onTextChanged: {
                             if (showAlert) {
@@ -372,7 +372,7 @@ DccObject {
                     page: D.LineEdit {
                         text: addressData.length > index ? addressData[index][1] : "255.255.255.0"
                         validator: RegularExpressionValidator {
-                            regularExpression: NetUtils.maskRegExp
+                            regularExpression: NetUtils.maskEditRegExp
                         }
                         onTextChanged: {
                             if (showAlert) {
@@ -404,7 +404,7 @@ DccObject {
                         enabled: index === 0
                         text: index === 0 && addressData.length > index ? addressData[index][2] : ""
                         validator: RegularExpressionValidator {
-                            regularExpression: NetUtils.ipRegExp
+                            regularExpression: NetUtils.ipEditRegExp
                         }
                         onTextChanged: {
                             if (showAlert) {