diff --git a/.gitattributes b/.gitattributes
new file mode 100644
index 0000000..cc23192
--- /dev/null
+++ b/.gitattributes
@@ -0,0 +1,2 @@
+* text=auto eol=lf
+*.bat text eol=crlf
diff --git a/Jenkinsfile b/Jenkinsfile
index b78d11f..ba814af 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -83,8 +83,13 @@ pipeline {
 
                         def newVer
                         if (params.SNAPSHOT) {
-                            // SNAPSHOT：查询 registry 上最新的 alpha 版本，自动递增
-                            def alphaNum = 1
+                            // 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()
+                            }
+                            def remoteAlphaNum = 0
                             try {
                                 def remoteVer = bat(
                                     script: "@npm view ${pkg} dist-tags.alpha --registry %NEXUS_REGISTRY% 2>nul",
@@ -93,12 +98,13 @@ pipeline {
                                 if (remoteVer && remoteVer.matches(/.*-alpha\.\d+$/)) {
                                     def matcher = (remoteVer =~ /-alpha\.(\d+)$/)
                                     if (matcher.find()) {
-                                        alphaNum = matcher.group(1).toInteger() + 1
+                                        remoteAlphaNum = matcher.group(1).toInteger()
                                     }
                                 }
                             } catch (Exception e) {
-                                echo "Could not query remote version for ${pkg}, using alpha.1"
+                                echo "Could not query remote version for ${pkg}; advancing from source version"
                             }
+                            def alphaNum = Math.max(localAlphaNum, remoteAlphaNum) + 1
                             newVer = baseVer + "-alpha.${alphaNum}"
                             echo "SNAPSHOT publish: ${pkg} → ${newVer} (tag: alpha)"
                             // 临时写入 package.json 供 npm publish 读取（不 commit）
diff --git a/docs/IMPLEMENTATION_HANDOFF.md b/docs/IMPLEMENTATION_HANDOFF.md
index 1603032..b912ad2 100644
--- a/docs/IMPLEMENTATION_HANDOFF.md
+++ b/docs/IMPLEMENTATION_HANDOFF.md
@@ -101,6 +101,12 @@ pnpm --dir packages/update test
 
 ## 7. 本轮变更记录
 
+### 2026-07-17 / Jenkins #48 失败修复
+
+- `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。
+
 ### 2026-07-17 / common 第一轮
 
 - 引入 `semver@7.8.5` 与 `@types/semver@7.7.1`，不自行重复实现版本算法。