feat: enable handling projections for inactive instances (#5523)

* fix: don't ignore failed events in handlers

* question

* fix retries

* don't instance ids query

* statements can be nil

* make unit tests pass

* add comments

* spool only active instances

* feat(config): handle inactive instances

* customizable HandleInactiveInstances

* test: handling with and w/o inactive instances

* docs: describe projection options

* enable global handling of inactive instances

* accept NowFunc, not Clock interface

* add comment about stringer usage

* remove enum stringer implementations

* fix enum format types

* Update internal/eventstore/repository/mock/repository.mock.impl.go

Co-authored-by: Silvan <silvan.reusser@gmail.com>

---------

Co-authored-by: Silvan <silvan.reusser@gmail.com>

internal/eventstore/repository/mock/repository.mock.matcher.searchquery.go

@@ -0,0 +1,45 @@
+package mock
+
+import (
+	"fmt"
+	"strings"
+
+	"github.com/zitadel/zitadel/internal/eventstore/repository"
+)
+
+type filterQueryMatcher repository.SearchQuery
+
+func (f *filterQueryMatcher) String() string {
+	var filterLists []string
+	for _, filterSlice := range f.Filters {
+		var str string
+		for _, filter := range filterSlice {
+			str += "," + (*filterMatcher)(filter).String()
+		}
+		filterLists = append(filterLists, fmt.Sprintf("[%s]", strings.TrimPrefix(str, ",")))
+
+	}
+	return fmt.Sprintf("Filters: %s", strings.Join(filterLists, " "))
+}
+
+func (f *filterQueryMatcher) Matches(x interface{}) bool {
+	other := x.(*repository.SearchQuery)
+	if len(f.Filters) != len(other.Filters) {
+		return false
+	}
+	for filterSliceIdx, filterSlice := range f.Filters {
+		if len(filterSlice) != len(other.Filters[filterSliceIdx]) {
+			return false
+		}
+		for filterIdx, filter := range f.Filters[filterSliceIdx] {
+			if !(*filterMatcher)(filter).Matches(other.Filters[filterSliceIdx][filterIdx]) {
+				return false
+			}
+		}
+	}
+	return true
+}
+
+func (f *filterQueryMatcher) Got(got interface{}) string {
+	return (*filterQueryMatcher)(got.(*repository.SearchQuery)).String()
+}