[Web] Enable Quota System for AI Features (#31544)

* feat: migrate from aiErrorAssist naming for disabling AI features to aiFeatures.enabled to avoid confusion

feat: keep aiErrorAssistant as setting on user object until migration is run

* feat: migrate writefull.enabled unset to instead use promotionSet false

* feat: updating to use quota based system for AI usage

* feat: hide relevant sections of quota system behind split test

* feat: ship onAiFreeTrial instead of free quota amount to project meta

* fix: renaming splitTestEnabledForUser to featureFlagEnabledForUser

* fix: v1_personal should have free trial amount of ai quota

* fix: onAiFreeTrial in projectController should account for anonymous users with no features

* feat: fixing marketing exports for ai quotas

* feat: update features epoch

* feat: move to quota tiers, and map tier to numeric allowance within rateLimiters

GitOrigin-RevId: 17763447965aae5777053b783d2601517bfe6b12

services/web/test/unit/src/Institutions/InstitutionsFeatures.test.mjs

@@ -30,6 +30,13 @@ describe('InstitutionsFeatures', function () {
       default: {
         institutionPlanCode: ctx.institutionPlanCode,
         overleaf: {},
+        writefull: {
+          quotaTierGranted: 'unlimited',
+        },
+        aiFeatures: {
+          freeTrialQuota: 'basic',
+          unlimitedQuota: 'unlimited',
+        },
       },
     }))
 
@@ -52,10 +59,18 @@ describe('InstitutionsFeatures', function () {
     }
     ctx.testFeatures = { features: { institution: 'all' } }
     ctx.testFeaturesWithAiAddon = {
-      features: { institution: 'all', aiErrorAssistant: true },
+      features: {
+        institution: 'all',
+        aiUsageQuota: 'unlimited',
+        aiErrorAssistant: true,
+      },
     }
     ctx.testFeaturesWithNoAddon = {
-      features: { institution: 'all', aiErrorAssistant: false },
+      features: {
+        institution: 'all',
+        aiUsageQuota: 'basic',
+        aiErrorAssistant: false,
+      },
     }
   })
 

services/web/test/unit/src/Project/ProjectListController.test.mjs

@@ -40,6 +40,7 @@ describe('ProjectListController', function () {
         theme: 'textmate',
         mode: 'none',
       },
+      aiFeatures: { enabled: false },
     }
     ctx.users = {
       'user-1': {

services/web/test/unit/src/Subscription/FeaturesUpdater.test.mjs

@@ -74,6 +74,11 @@ describe('FeaturesUpdater', function () {
       },
       writefull: {
         overleafApiUrl: 'https://www.writefull.com',
+        quotaTierGranted: 'unlimited',
+      },
+      aiFeatures: {
+        freeTrialQuota: 'basic',
+        unlimitedQuota: 'unlimited',
       },
     }
 
@@ -323,6 +328,7 @@ describe('FeaturesUpdater', function () {
           default: 'features',
           individual: 'features',
           aiErrorAssistant: true,
+          aiUsageQuota: 'unlimited',
         })
       })
     })
@@ -341,6 +347,7 @@ describe('FeaturesUpdater', function () {
         expect(features).to.deep.equal({
           default: 'features',
           aiErrorAssistant: true,
+          aiUsageQuota: 'unlimited',
         })
       })
     })

services/web/test/unit/src/User/UserGetter.test.mjs

@@ -66,6 +66,10 @@ describe('UserGetter', function () {
     vi.doMock('@overleaf/settings', () => ({
       default: (ctx.settings = {
         reconfirmNotificationDays: 14,
+        aiFeatures: {
+          freeTrialQuota: 'basic',
+          unlimitedQuota: 'unlimited',
+        },
       }),
     }))
 
@@ -1312,8 +1316,8 @@ describe('UserGetter', function () {
 
     it('should take into account features overrides from modules', async function (ctx) {
       // this case occurs when the user has bought the ai bundle on WF, which should include our error assistant
-      const bundleFeatures = { aiErrorAssistant: true }
-      ctx.fakeUser.features = { aiErrorAssistant: false }
+      const bundleFeatures = { aiUsageQuota: 'unlimited' }
+      ctx.fakeUser.features = { aiUsageQuota: 'basic' }
       ctx.Modules.promises.hooks.fire = sinon.stub().resolves([bundleFeatures])
       const features = await ctx.UserGetter.promises.getUserFeatures(
         ctx.fakeUser._id