gergo/web 2047 user joins the workspace event (#3412)

* feat(gatekeeper): add gatekeeper module feature flag

* feat(gatekeeper): add workspace pricing table domain

* feat(gatekeeper): add checkout session creation

* feat(gatekeeper): verify stripe signature

* wip(gatekeeper): checkout callbacks

* feat(gatekeeper): add unlimited and academia plan types

* refactor(envHelper): getStringFromEnv helper

* chore(gatekeeper): add future todos

* feat(gatekeeper): add productId to the subscription domain

* feat(gatekeeper): add in memory repositories

* feat(gatekeeper): add more errors

* feat(gatekeeper): complete checkout session service

* feat(gatekeeper): add stripe client implementation

* feat(gatekeeper): add checkout session completion webhook callback path

* feat(gendo): fix not needing env vars if gendo module is not enabled

* feat(gatekeeper): require a license for billing

* chore(gatekeeper): cleanup before testing

* feat(gatekeeper): subscriptionData parsing model

* ci: add billing integration and gatekeeper modules to test config

* test(gatekeeper): add checkout service tests

* feat(gatekeeper): make completeCheckout callback idempotent properly

* feat(gatekeeper): move to knex based repositories

* test(gatekeeper): billing repository tests

* feat(gatekeeper): add yearly billing cycle toggle

* feat(ci): add stripe integration context to test job

* feat(billingPage): conditionally render the checkout CTAs

* fix(gatekeeper): remove flaky test condition

* feat(helm): add billing integration feature flag

* WIP billing gql api

* feat(gatekeeper): cancel checkout session api

* feat(gatekeeper): handle existing checkout sessions, when trying to create a new one

* feat(gatekeeper): add workspace plans gql api

* feat(gatekeeper): handle cancelation and subscription updates

* fix(gatekeeper): scope initialization

* fix(gatekeeper): eliminate stripe client import sideeffect

* fix(gatekeeper): eliminate stripe client import sideeffect 2

* feat(gatekeeper): upsize subscription on workspace role change

* feat(shared): add command pattern implementation

* refactor(eventBus): remove return capabilities from the event bus

* refactor(workspaces): use new commandFactory in workspace resolver

* feat(core): facelift taskLock

* feat(gatekeeper): shedule subscription downscale

* feat(gatekeeper): manage subscription downscale

* feat(gatekeeper): get workspace subscriptions, that are about to expire

* feat(gatekeeper): manage subscription downscale

* fix(gatekeeper): do not update subscription to canceled subs

* ci: bump postgres and max connections

* feat(workspaces): fix command factory event bugs

workspace.code-workspace

@@ -97,7 +97,8 @@
       "Encryptor",
       "Insertable",
       "mjml",
-      "OIDC"
+      "OIDC",
+      "Prorotation"
     ],
     "tailwindCSS.experimental.configFile": {
       "packages/frontend-2/tailwind.config.mjs": "packages/frontend-2/**"