Update tools/sql_tool.py

tools/sql_tool.py

@@ -14,7 +14,7 @@ DUCKDB_PATH = os.getenv("DUCKDB_PATH", "alm.duckdb")
 # If you need to attach a catalog (e.g., MotherDuck), put the full ATTACH here.
 # Example:
 #   DUCKDB_ATTACH_SQL=ATTACH 'md:my_db' AS my_db;
-DUCKDB_ATTACH_SQL = os.getenv("DUCKDB_ATTACH_SQL", "").strip()
+DUCKDB_ATTACH_SQL = ATTACH 'alm.duckdb' AS my_db;
 
 # Preferred identifiers (we will fall back automatically if they don't exist)
 PREF_CATALOG = os.getenv("SQL_DEFAULT_DB", "my_db")      # catalog (optional)