Update auth.ts to use dynamic environment variables

.env.example

+AIDC_CLIENT_ID="7cdc367a-ed17-4b59-b92d-3435f84df1e8"
+AIDC_CLIENT_SECRET="GL1CJdo7eUSC5nayoEec_yon3k"
\ No newline at end of file

src/auth.ts

-import { AIDC_CLIENT_ID, AIDC_CLIENT_SECRET } from "$env/static/private";
+import { env } from "$env/dynamic/private";
 import { AriseIdConnect } from "$lib/index.js";
 import { defaultLucia } from "$lib/default.js";
 
 export const aidc = await AriseIdConnect.init({
-  client_id: AIDC_CLIENT_ID,
-  client_secret: AIDC_CLIENT_SECRET,
+  client_id: env.AIDC_CLIENT_ID,
+  client_secret: env.AIDC_CLIENT_SECRET,
   scope: "openid offline profile",
   luciaWrapper: defaultLucia,
 });