feat: push telemetry (#6027)

* document analytics config

* rework configuration and docs

* describe HandleActiveInstances better

* describe active instances on quotas better

* only projected events are considered

* cleanup

* describe changes at runtime

* push milestones

* stop tracking events

* calculate and push 4 in 6 milestones

* reduce milestone pushed

* remove docs

* fix scheduled pseudo event projection

* push 5 in 6 milestones

* push 6 in 6 milestones

* ignore client ids

* fix text array contains

* push human readable milestone type

* statement unit tests

* improve dev and db performance

* organize imports

* cleanup

* organize imports

* test projection

* check rows.Err()

* test search query

* pass linting

* review

* test 4 milestones

* simplify milestone by instance ids query

* use type NamespacedCondition

* cleanup

* lint

* lint

* dont overwrite original error

* no opt-in in examples

* cleanup

* prerelease

* enable request headers

* make limit configurable

* review fixes

* only requeue special handlers secondly

* include integration tests

* Revert "include integration tests"

This reverts commit 96db9504ec.

* pass reducers

* test handlers

* fix unit test

* feat: increment version

* lint

* remove prerelease

* fix integration tests

internal/query/projection/projection.go

@@ -64,8 +64,10 @@ var (
 	NotificationPolicyProjection        *notificationPolicyProjection
 	NotificationsProjection             interface{}
 	NotificationsQuotaProjection        interface{}
+	TelemetryPusherProjection           interface{}
 	DeviceAuthProjection                *deviceAuthProjection
 	SessionProjection                   *sessionProjection
+	MilestoneProjection                 *milestoneProjection
 )
 
 type projection interface {
@@ -143,6 +145,7 @@ func Create(ctx context.Context, sqlClient *database.DB, es *eventstore.Eventsto
 	NotificationPolicyProjection = newNotificationPolicyProjection(ctx, applyCustomConfig(projectionConfig, config.Customizations["notification_policies"]))
 	DeviceAuthProjection = newDeviceAuthProjection(ctx, applyCustomConfig(projectionConfig, config.Customizations["device_auth"]))
 	SessionProjection = newSessionProjection(ctx, applyCustomConfig(projectionConfig, config.Customizations["sessions"]))
+	MilestoneProjection = newMilestoneProjection(ctx, applyCustomConfig(projectionConfig, config.Customizations["milestones"]))
 	newProjectionsList()
 	return nil
 }
@@ -191,7 +194,7 @@ func applyCustomConfig(config crdb.StatementHandlerConfig, customConfig CustomCo
 // as setup and start currently create them individually, we make sure we get the right one
 // will be refactored when changing to new id based projections
 //
-// NotificationsProjection is not added here, because it does not statement based / has no proprietary projection table
+// Event handlers NotificationsProjection, NotificationsQuotaProjection and NotificationsProjection are not added here, because they do not reduce to database statements
 func newProjectionsList() {
 	projections = []projection{
 		OrgProjection,
@@ -240,5 +243,6 @@ func newProjectionsList() {
 		NotificationPolicyProjection,
 		DeviceAuthProjection,
 		SessionProjection,
+		MilestoneProjection,
 	}
 }