Preview: Builds ueber den Runner

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

server/routes/webhook/gitea.js

@@ -108,7 +108,7 @@ router.post('/gitea', async (req, res) => {
 
     if (hasPreview && previewConfig.enabled !== false && branch === configBranch) {
       try {
-        deployResult = await runDeploy(name, branch, previewConfig)
+        deployResult = await runDeploy(name, branch, previewConfig, { sha: commitSha })
       } catch (deployErr) {
         console.error('[webhook] deploy failed:', deployErr.message)
         deployResult = { deployed: false, error: deployErr.message }