Created Axum routing for localhost, also SQL Table structure

Added a axum router and listener for serving a web page on localhost.
Also a sql table structure was created with sqlx migrate for storing
tickets and users

migrations/20260422094706_ticket_table.sql

@@ -0,0 +1,10 @@
+CREATE TYPE category AS ENUM('Whiteboard Beamer', 'Internet', 'iPad Koffer', 'Apple TV', 'Docu Cam', 'Sonstiges')
+
+CREATE TABLE IF NOT EXISTS tickets (
+    id INTEGER PRIMARY KEY AUTOINCREMENT,
+    category category NOT NULL DEFAULT 'Sonstiges',
+    betreff VARCHAR(100),
+    description VARCHAR,
+    room SMALLINT,
+    user_id SMALLINT
+);

migrations/20260422094717_user_table.sql

@@ -0,0 +1,6 @@
+CREATE TABLE users (
+    id SMALLINT PRIMARY KEY AUTOINCREMENT,
+    name VARCHAR(30),
+    firstname VARCHAR(30),
+    is_admin BOOLEAN NOT NULL DEFAULT false
+);