fix: commit semantic repair changes

build.sh

@@ -1,4 +1,8 @@
 #!/usr/bin/env bash
+# [DEF:build:Module]
+# @PURPOSE: Utility script for build
+# @TIER: TRIVIAL
+# @COMPLEXITY: 1
 
 set -euo pipefail
 
@@ -45,6 +49,7 @@ import base64
 import os
 import sys
 from pathlib import Path
+from typing import List, Optional
 
 
 def is_valid_fernet_key(raw_value: str) -> bool:
@@ -67,8 +72,8 @@ def generate_fernet_key() -> str:
 env_path = Path(sys.argv[1])
 env_path.parent.mkdir(parents=True, exist_ok=True)
 
-existing_lines: list[str] = []
-existing_key: str | None = None
+existing_lines: List[str] = []
+existing_key: Optional[str] = None
 
 if env_path.exists():
     existing_lines = env_path.read_text(encoding="utf-8").splitlines()
@@ -117,3 +122,5 @@ echo "[2/2] Starting Docker services..."
 
 echo "Done. Services are running."
 echo "Use '${COMPOSE_CMD[*]} ${COMPOSE_ARGS[*]} ps' to check status and '${COMPOSE_CMD[*]} ${COMPOSE_ARGS[*]} logs -f' to stream logs."
+
+# [/DEF:build:Module]