diff --git a/.gitattributes b/.gitattributes
new file mode 100644
index 0000000..b63161c
--- /dev/null
+++ b/.gitattributes
@@ -0,0 +1,12 @@
+# Shell-/Deploy-Skripte MÜSSEN LF behalten — sonst bricht der Deploy auf der Box
+# (CRLF macht `set -euo pipefail` zu `pipefail\r` → "invalid option name").
+*.sh        text eol=lf
+*.bash      text eol=lf
+
+# systemd-Units und Service-Configs ebenfalls LF.
+*.service   text eol=lf
+*.timer     text eol=lf
+
+# Windows-Batch-Wrapper bleiben CRLF.
+*.cmd       text eol=crlf
+*.bat       text eol=crlf
diff --git a/backend/services/maintenance.py b/backend/services/maintenance.py
index 359446f..eea19a3 100644
--- a/backend/services/maintenance.py
+++ b/backend/services/maintenance.py
@@ -42,7 +42,10 @@ def _installed_engine_build() -> int | None:
         out = subprocess.run([bin_path, "--version"], capture_output=True, text=True,
                              timeout=20, env=env)
         txt = (out.stderr or "") + (out.stdout or "")
-        if (m := re.search(r"build:\s*\S+\s*\((\d+)\)", txt)) or (m := re.search(r"\bb(\d{3,})\b", txt)):
+        # Formate je nach Build: "version: 9821 (hash)" (aktuell), "build: <hash> (9821)", "b9821".
+        if (m := re.search(r"version:\s*(\d{3,})", txt)) \
+                or (m := re.search(r"build:\s*\S+\s*\((\d+)\)", txt)) \
+                or (m := re.search(r"\bb(\d{3,})\b", txt)):
             return int(m.group(1))
     except Exception:
         return None