docs: add events system pages (#4294)

* feat: events docs

* fix: make the conditions optional in casl check

* Update backend/src/lib/api-docs/constants.ts

* Update backend/src/lib/api-docs/constants.ts

Co-authored-by: greptile-apps[bot] <165735046+greptile-apps[bot]@users.noreply.github.com>

* Update docs/docs.json

* docs: content

* fix: pr changes

* feat: improve docs

* chore: remove recursive

* fix: pr changes

* fix: change

* fix: pr changes

* fix: pr changes

* fix: change

docs/docs.json

@@ -41,6 +41,8 @@
             "group": "Platform Reference",
             "pages": [
               "documentation/platform/organization",
+              "documentation/platform/event-subscriptions",
+              "documentation/platform/folder",
               {
                 "group": "Projects",
                 "pages": [
@@ -764,6 +766,10 @@
                 "group": "Admin",
                 "pages": ["api-reference/endpoints/admin/bootstrap-instance"]
               },
+              {
+                "group": "Events",
+                "pages": ["api-reference/endpoints/events/project-events"]
+              },
               {
                 "group": "Identities",
                 "pages": [