chore: remove Sentry integration

src/env.ts

@@ -91,14 +91,7 @@ const schema = z
 		REDIS_URL: z.string().optional(),
 		// Logging level.
 		LOG_LEVEL: z.enum(["debug", "info", "warn", "error"]).optional(),
-		// Optional Sentry — no-op when unset.
-		SENTRY_DSN: z.string().url().optional().or(z.literal("")),
-		NEXT_PUBLIC_SENTRY_DSN: z.string().url().optional().or(z.literal("")),
-		SENTRY_ORG: z.string().optional(),
-		SENTRY_PROJECT: z.string().optional(),
-		SENTRY_AUTH_TOKEN: z.string().optional(),
 		APP_VERSION: z.string().optional(),
-		NEXT_PUBLIC_APP_VERSION: z.string().optional(),
 	})
 	.superRefine((data, ctx) => {
 		if (data.NODE_ENV !== "production") return;