chore: Move to Typescript (#2783)

This PR moves the entire project to Typescript. Due to the ~1000 ignores this will lead to a messy codebase for a while, but the churn is worth it – all of those ignore comments are places that were never type-safe previously.

closes #1282

server/sequelize.ts

@@ -0,0 +1,33 @@
+import Sequelize from "sequelize";
+// @ts-expect-error ts-migrate(7016) FIXME: Could not find a declaration file for module 'sequ... Remove this comment to see the full error message
+import EncryptedField from "sequelize-encrypted";
+import Logger from "./logging/logger";
+
+const isProduction = process.env.NODE_ENV === "production";
+const isSSLDisabled = process.env.PGSSLMODE === "disable";
+
+export const encryptedFields = () =>
+  EncryptedField(Sequelize, process.env.SECRET_KEY);
+
+export const DataTypes = Sequelize;
+
+export const Op = Sequelize.Op;
+
+// @ts-expect-error ts-migrate(2351) FIXME: This expression is not constructable.
+export const sequelize = new Sequelize(
+  process.env.DATABASE_URL || process.env.DATABASE_CONNECTION_POOL_URL,
+  {
+    // @ts-expect-error ts-migrate(7006) FIXME: Parameter 'msg' implicitly has an 'any' type.
+    logging: (msg) => Logger.debug("database", msg),
+    typeValidation: true,
+    dialectOptions: {
+      ssl:
+        isProduction && !isSSLDisabled
+          ? {
+              // Ref.: https://github.com/brianc/node-postgres/issues/2009
+              rejectUnauthorized: false,
+            }
+          : false,
+    },
+  }
+);