ci: use msys paths for stdb cargo env

jenkins/Jenkinsfile.production-stdb-module-build

@@ -79,17 +79,33 @@ pipeline {
           if (-not (Get-Command bash -ErrorAction SilentlyContinue)) {
             throw '[stdb-build] Windows 构建节点缺少 bash，无法执行仓库现有生产构建脚本。请先安装 Git Bash 或 WSL bash，并确保 bash 在 PATH 中。'
           }
+          function Convert-ToMsysPath([string]$Path) {
+            if ([string]::IsNullOrWhiteSpace($Path)) {
+              return $Path
+            }
+            $normalized = $Path -replace '\\', '/'
+            if ($normalized -match '^([A-Za-z]):/(.*)$') {
+              return '/' + $matches[1].ToLower() + '/' + $matches[2]
+            }
+            return $normalized
+          }
+          $bashCargoHome = Convert-ToMsysPath $env:CARGO_HOME
+          $bashCargoTargetDir = Convert-ToMsysPath $env:CARGO_TARGET_DIR
+          $bashSccacheDir = Convert-ToMsysPath $env:SCCACHE_DIR
+          $bashRustupHome = Convert-ToMsysPath $env:RUSTUP_HOME
+          $bashWorkspace = Convert-ToMsysPath $env:WORKSPACE
           $bashScript = @"
             set -euo pipefail
-            export CARGO_HOME='$($env:CARGO_HOME)'
-            export CARGO_TARGET_DIR='$($env:CARGO_TARGET_DIR)'
-            export SCCACHE_DIR='$($env:SCCACHE_DIR)'
+            export CARGO_HOME='$bashCargoHome'
+            export CARGO_TARGET_DIR='$bashCargoTargetDir'
+            export SCCACHE_DIR='$bashSccacheDir'
+            export RUSTUP_HOME='$bashRustupHome'
+            export WORKSPACE='$bashWorkspace'
             export CARGO_INCREMENTAL='$($env:CARGO_INCREMENTAL)'
             export RUSTC_WRAPPER='$($env:RUSTC_WRAPPER)'
             export SCCACHE_CACHE_SIZE='$($env:SCCACHE_CACHE_SIZE)'
             export SOURCE_BRANCH='$($env:SOURCE_BRANCH)'
             export SOURCE_COMMIT='$($env:SOURCE_COMMIT)'
-            export EFFECTIVE_BUILD_VERSION='$effectiveBuildVersion'
             chmod +x scripts/jenkins-prepare-cargo-env.sh
             source scripts/jenkins-prepare-cargo-env.sh
             if ! command -v cargo >/dev/null 2>&1; then