show build on website footer

app.py

@@ -29,6 +29,43 @@ BETA_USERS = {
 
 # Logging für Auditing
 LOG_FILE = "access_log.json"
+BUILD_INFO_FILE = "build_info.json"
+UNKNOWN_BUILD_INFO = {
+    "version": "unknown",
+    "branch": "unknown",
+    "commit": "unknown",
+    "timestamp": "unknown"
+}
+
+# ============================================================================
+# BUILD INFO
+# ============================================================================
+
+def load_build_info():
+    """Load deployment/build metadata for templates."""
+    try:
+        with open(BUILD_INFO_FILE, "r") as f:
+            data = json.load(f)
+    except Exception as e:
+        print(f"[Build Info Error] {e}")
+        return UNKNOWN_BUILD_INFO.copy()
+
+    if not isinstance(data, dict):
+        return UNKNOWN_BUILD_INFO.copy()
+
+    build_info = UNKNOWN_BUILD_INFO.copy()
+    for key in build_info:
+        value = data.get(key)
+        if isinstance(value, str) and value.strip():
+            build_info[key] = value.strip()
+    return build_info
+
+BUILD_INFO = load_build_info()
+
+@app.context_processor
+def inject_build_info():
+    """Make build metadata available in all templates."""
+    return {"build_info": BUILD_INFO}
 
 # ============================================================================
 # AUTHENTICATION