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/models/CollectionGroup.ts

@@ -0,0 +1,38 @@
+import { DataTypes, sequelize } from "../sequelize";
+
+const CollectionGroup = sequelize.define(
+  "collection_group",
+  {
+    permission: {
+      type: DataTypes.STRING,
+      defaultValue: "read_write",
+      validate: {
+        isIn: [["read", "read_write", "maintainer"]],
+      },
+    },
+  },
+  {
+    timestamps: true,
+    paranoid: true,
+  }
+);
+
+// @ts-expect-error ts-migrate(7006) FIXME: Parameter 'models' implicitly has an 'any' type.
+CollectionGroup.associate = (models) => {
+  CollectionGroup.belongsTo(models.Collection, {
+    as: "collection",
+    foreignKey: "collectionId",
+    primary: true,
+  });
+  CollectionGroup.belongsTo(models.Group, {
+    as: "group",
+    foreignKey: "groupId",
+    primary: true,
+  });
+  CollectionGroup.belongsTo(models.User, {
+    as: "createdBy",
+    foreignKey: "createdById",
+  });
+};
+
+export default CollectionGroup;