[api] Add Sentry (#3597)

* [api] Add Sentry

* Use function name

* Add test error

* Revert "Add test error"

This reverts commit 39cf8a61dad9fcdcb616e418a0deb6ffe9e04ea9.

* Revert "Revert "Add test error""

This reverts commit c718f201da9d80743319ac87e0d4560e718fff53.

* Add logging

* Revert "Add logging"

This reverts commit 39cd46c8bbeef9024e71fe70478068480a51545b.

* Revert "Revert "Revert "Add test error"""

This reverts commit e6f63ee21fabb4ac8fc065b74281dbcdf5811216.

* Ignore .env

* Use init function for Sentry inline

api/_lib/util/assert-env.ts

@@ -0,0 +1,9 @@
+export function assertEnv(name: string) {
+  const value = process.env[name];
+
+  if (!value) {
+    throw new Error(`Missing env "${name}"`);
+  }
+
+  return value;
+}