feat: add main menu options and scripts

app.py

@@ -29,11 +29,6 @@ TEXT_2_SQL_API = os.environ.get(
     "TEXT_2_SQL_API", "http://213.181.122.2:40057/api/text2sql/ask"
 )
 
-try:
-    os.remove("resources/ai_app.db")
-except:
-    pass
-
 
 @st.cache_resource
 def load_database():
@@ -44,7 +39,16 @@ def load_database():
     return db_conn
 
 
-db_conn = load_database()
+@st.cache_resource
+def load_database2():
+    db_conn = sqlite3.connect("resources/ai_app.db")
+    with open("resources/schema.sql", "r") as f:
+        db_conn.executescript(f.read())
+
+    return db_conn
+
+
+db_conn = load_database2()
 
 
 def execute_sql(sql_query):