Move inbox to its own model (#10428)

* shared model for chat and inbox

* disable inbox schema

* inbox: use separate model

* remove old code that used group.chat

* add back chat field (not used) and remove old tests

* remove inbox exclusions when loading user

* add GET /api/v3/inbox/messages

* add comment

* implement DELETE /inbox/messages/:messageid in v4

* implement GET /inbox/messages in v4 and update tests

* implement DELETE /api/v4/inbox/clear

* fix url

* fix doc

* update /export/inbox.html

* update other data exports

* add back messages in user schema

* add user.toJSONWithInbox

* add compativility until migration is done

* more compatibility

* fix tojson called twice

* add compatibility methods

* fix common tests

* fix v4 integration tests

* v3 get user -> with inbox

* start to fix tests

* fix v3 integration tests

* wip

* wip, client use new route

* update tests for members/send-private-message

* tests for get user in v4

* add tests for DELETE /inbox/messages/:messageId

* add tests for DELETE /inbox/clear in v4

* update docs

* fix tests

* initial migration

* fix migration

* fix migration

* migration fixes

* migrate api.enterCouponCode

* migrate api.castSpell

* migrate reset, reroll, rebirth

* add routes to v4 version

* fix tests

* fixes

* api.updateUser

* remove .only

* get user -> userLib

* refactor inbox.vue to work with new data model

* fix return message when messaging yourself

* wip fix bug with new conversation

* wip

* fix remaining ui issues

* move api.registerLocal, fixes

* keep only v3 version of GET /inbox/messages

test/api/v4/inbox/DELETE-inbox_clear.test.js

@@ -0,0 +1,30 @@
+import {
+  generateUser,
+} from '../../../helpers/api-integration/v4';
+
+describe('DELETE /inbox/clear', () => {
+  it('removes all inbox messages for the user', async () => {
+    const [user, otherUser] = await Promise.all([generateUser(), generateUser()]);
+
+    await otherUser.post('/members/send-private-message', {
+      toUserId: user.id,
+      message: 'first',
+    });
+    await user.post('/members/send-private-message', {
+      toUserId: otherUser.id,
+      message: 'second',
+    });
+    await otherUser.post('/members/send-private-message', {
+      toUserId: user.id,
+      message: 'third',
+    });
+
+    let messages = await user.get('/inbox/messages');
+    expect(messages.length).to.equal(3);
+
+    await user.del('/inbox/clear/');
+
+    messages = await user.get('/inbox/messages');
+    expect(messages.length).to.equal(0);
+  });
+});