Added settings and API key stuff

Signed-off-by: Marcel Müller <neikos@neikos.email>

nixie-server/migrations/20260123170914_create_api_keys.down.sql

@@ -0,0 +1,3 @@
+-- Add migration script here
+
+DROP TABLE IF EXISTS api_keys;

nixie-server/migrations/20260123170914_create_api_keys.up.sql

@@ -0,0 +1,12 @@
+-- Add migration script here
+
+CREATE TABLE IF NOT EXISTS api_keys
+(
+    id INTEGER PRIMARY KEY NOT NULL,
+    user_id INTEGER NOT NULL REFERENCES users(id),
+    token TEXT NOT NULL,
+    name TEXT NOT NULL,
+    expiration_date TEXT NOT NULL,
+    permissions TEXT NOT NULL,
+    revoked BOOLEAN NOT NULL
+);