refactor: some minor cleanup

src/utils/env.py

@@ -0,0 +1,22 @@
+import os
+
+
+def parse_int_env(
+    name: str,
+    default: int,
+    minimum: int,
+    maximum: int,
+) -> int:
+    raw = os.environ.get(name)
+    if raw is None:
+        return default
+
+    try:
+        value = int(raw)
+    except ValueError:
+        return default
+
+    if value < minimum or value > maximum:
+        return default
+
+    return value