feat: projections auto create their tables (#3324)

* begin init checks for projections

* first projection checks

* debug notification providers with query fixes

* more projections and first index

* more projections

* more projections

* finish projections

* fix tests (remove db name)

* create tables in setup

* fix logging / error handling

* add tenant to views

* rename tenant to instance_id

* add instance_id to all projections

* add instance_id to all queries

* correct instance_id on projections

* add instance_id to failed_events

* use separate context for instance

* implement features projection

* implement features projection

* remove unique constraint from setup when migration failed

* add error to failed setup event

* add instance_id to primary keys

* fix IAM projection

* remove old migrations folder

* fix keysFromYAML test

internal/api/http/middleware/user_agent_cookie.go

@@ -21,6 +21,10 @@ func UserAgentIDFromCtx(ctx context.Context) (string, bool) {
 	return userAgentID, ok
 }
 
+func InstanceIDFromCtx(ctx context.Context) string {
+	return "" //TODO: implement
+}
+
 type UserAgent struct {
 	ID string
 }