Added database connection

Code now connects to database and prints out errors. Also the ticket
table now includes a timestamp field

migrations/20260422094706_ticket_table.sql

@@ -6,5 +6,6 @@ CREATE TABLE IF NOT EXISTS tickets (
     betreff VARCHAR(100),
     description VARCHAR,
     room SMALLINT,
+    date TIMESTAMP,
     user_id SMALLINT
 );