Create file_utils.py

utils/file_utils.py

@@ -0,0 +1,10 @@
+import re
+
+def normalize_log_line(line: str) -> str:
+    """Strip timestamp/hostname noise from syslog-style line"""
+    noise = re.compile(r"^\w{3}\s+\d+\s+\d{2}:\d{2}:\d{2}\s+[\w\-\.\:]+\s+")
+    return noise.sub("", line).strip()
+
+def keyword_search(content: str, query: str) -> list:
+    """Case-insensitive keyword search across lines"""
+    return [line for line in content.splitlines() if query.lower() in line.lower()]