fix(ci): keep alpha calculation CPS serializable

Jenkinsfile

@@ -3,6 +3,7 @@ pipeline {
 
     environment {
         NEXUS_REGISTRY = 'https://nexus.xuqinmin.com/repository/npm-hosted/'
+        NEXUS_READ_REGISTRY = 'https://nexus.xuqinmin.com/repository/npm/'
         GIT_URL        = 'https://xuqinmin.com/xuqmGroup/XuqmGroup-RNSDK.git'
         ANDROID_SDK_GIT_URL = 'https://xuqinmin.com/xuqmGroup/XuqmGroup-AndroidSDK.git'
     }
@@ -85,21 +86,17 @@ pipeline {
                         if (params.SNAPSHOT) {
                             // SNAPSHOT：源码与 registry 都可能领先，必须取二者最大序号再递增。
                             def localAlphaNum = 0
-                            def localMatcher = (currentVer =~ /-alpha\.(\d+)$/)
-                            if (localMatcher.find()) {
-                                localAlphaNum = localMatcher.group(1).toInteger()
+                            if (currentVer.matches(/.*-alpha\.\d+$/)) {
+                                localAlphaNum = currentVer.tokenize('.').last().toInteger()
                             }
                             def remoteAlphaNum = 0
                             try {
                                 def remoteVer = bat(
-                                    script: "@npm view ${pkg} dist-tags.alpha --registry %NEXUS_REGISTRY% 2>nul",
+                                    script: "@npm view ${pkg} dist-tags.alpha --registry %NEXUS_READ_REGISTRY% 2>nul",
                                     returnStdout: true
                                 ).trim()
                                 if (remoteVer && remoteVer.matches(/.*-alpha\.\d+$/)) {
-                                    def matcher = (remoteVer =~ /-alpha\.(\d+)$/)
-                                    if (matcher.find()) {
-                                        remoteAlphaNum = matcher.group(1).toInteger()
-                                    }
+                                    remoteAlphaNum = remoteVer.tokenize('.').last().toInteger()
                                 }
                             } catch (Exception e) {
                                 echo "Could not query remote version for ${pkg}; advancing from source version"

docs/IMPLEMENTATION_HANDOFF.md

@@ -106,6 +106,7 @@ pnpm --dir packages/update test
 - `sdk-rn-publish #48` 在 Windows 棡出后因 8 个文件换行不一致被 Prettier 正确阻断，未发布任何包。
 - 新增 `.gitattributes`，源码统一以 LF 检出；仅 `.bat` 保持 CRLF。
 - alpha 版本号改为取源码现有序号与 Nexus 远端序号的最大值后加一，禁止版本倒退和重复发布。
+- `#49` 被 Jenkins CPS 的不可序列化正则 Matcher 阻断；算法改为只保留整数，并从 Nexus group 读标签、向 hosted 写制品。
 
 ### 2026-07-17 / common 第一轮