feat: add registration management with token-based access

Add management tokens to registrations allowing users to view, edit, and
cancel their registration via a unique URL. Implement email notifications
for confirmations, updates, and cancellations using nodemailer. Simplify
art forms grid from 6 to 4 items and remove trajectory links. Translate
footer links to Dutch and fix matzah spelling in info section.

packages/infra/alchemy.run.ts

@@ -3,7 +3,7 @@ import { TanStackStart } from "alchemy/cloudflare";
 import { config } from "dotenv";
 
 config({ path: "./.env" });
-config({ path: "../../apps/web/.env" });
+config({ path: "../env/.env" });
 
 const app = await alchemy("kk");
 
@@ -23,6 +23,11 @@ export const web = await TanStackStart("web", {
 		CORS_ORIGIN: getEnvVar("CORS_ORIGIN"),
 		BETTER_AUTH_SECRET: getEnvVar("BETTER_AUTH_SECRET"),
 		BETTER_AUTH_URL: getEnvVar("BETTER_AUTH_URL"),
+		SMTP_HOST: getEnvVar("SMTP_HOST"),
+		SMTP_PORT: getEnvVar("SMTP_PORT"),
+		SMTP_USER: getEnvVar("SMTP_USER"),
+		SMTP_PASS: getEnvVar("SMTP_PASS"),
+		SMTP_FROM: getEnvVar("SMTP_FROM"),
 	},
 	domains: ["kunstenkamp.be"],
 });