feat(api): feature flags (#7356)

* feat(api): feature API proto definitions

* update proto based on discussion with @livio-a

* cleanup old feature flag stuff

* authz instance queries

* align defaults

* projection definitions

* define commands and event reducers

* implement system and instance setter APIs

* api getter implementation

* unit test repository package

* command unit tests

* unit test Get queries

* grpc converter unit tests

* migrate the V1 features

* migrate oidc to dynamic features

* projection unit test

* fix instance by host

* fix instance by id data type in sql

* fix linting errors

* add system projection test

* fix behavior inversion

* resolve proto file comments

* rename SystemDefaultLoginInstanceEventType to SystemLoginDefaultOrgEventType so it's consistent with the instance level event

* use write models and conditional set events

* system features integration tests

* instance features integration tests

* error on empty request

* documentation entry

* typo in feature.proto

* fix start unit tests

* solve linting error on key case switch

* remove system defaults after discussion with @eliobischof

* fix system feature projection

* resolve comments in defaults.yaml

---------

Co-authored-by: Livio Spring <livio.a@gmail.com>

internal/query/instance_test.go

@@ -12,33 +12,9 @@ import (
 
 	sq "github.com/Masterminds/squirrel"
 	"golang.org/x/text/language"
-
-	"github.com/zitadel/zitadel/internal/zerrors"
 )
 
 var (
-	instanceQuery = `SELECT projections.instances.id,` +
-		` projections.instances.creation_date,` +
-		` projections.instances.change_date,` +
-		` projections.instances.sequence,` +
-		` projections.instances.default_org_id,` +
-		` projections.instances.iam_project_id,` +
-		` projections.instances.console_client_id,` +
-		` projections.instances.console_app_id,` +
-		` projections.instances.default_language` +
-		` FROM projections.instances` +
-		` AS OF SYSTEM TIME '-1 ms'`
-	instanceCols = []string{
-		"id",
-		"creation_date",
-		"change_date",
-		"sequence",
-		"default_org_id",
-		"iam_project_id",
-		"console_client_id",
-		"console_app_id",
-		"default_language",
-	}
 	instancesQuery = `SELECT f.count, f.id,` +
 		` projections.instances.creation_date,` +
 		` projections.instances.change_date,` +
@@ -93,76 +69,6 @@ func Test_InstancePrepares(t *testing.T) {
 		want           want
 		object         interface{}
 	}{
-		{
-			name:           "prepareInstanceQuery no result",
-			additionalArgs: []reflect.Value{reflect.ValueOf("")},
-			prepare:        prepareInstanceQuery,
-			want: want{
-				sqlExpectations: mockQueriesScanErr(
-					regexp.QuoteMeta(instanceQuery),
-					nil,
-					nil,
-				),
-				err: func(err error) (error, bool) {
-					if !zerrors.IsNotFound(err) {
-						return fmt.Errorf("err should be zitadel.NotFoundError got: %w", err), false
-					}
-					return nil, true
-				},
-			},
-			object: (*Instance)(nil),
-		},
-		{
-			name:           "prepareInstanceQuery found",
-			additionalArgs: []reflect.Value{reflect.ValueOf("")},
-			prepare:        prepareInstanceQuery,
-			want: want{
-				sqlExpectations: mockQuery(
-					regexp.QuoteMeta(instanceQuery),
-					instanceCols,
-					[]driver.Value{
-						"id",
-						testNow,
-						testNow,
-						uint64(20211108),
-						"global-org-id",
-						"project-id",
-						"client-id",
-						"app-id",
-						"en",
-					},
-				),
-			},
-			object: &Instance{
-				ID:           "id",
-				CreationDate: testNow,
-				ChangeDate:   testNow,
-				Sequence:     20211108,
-				DefaultOrgID: "global-org-id",
-				IAMProjectID: "project-id",
-				ConsoleID:    "client-id",
-				ConsoleAppID: "app-id",
-				DefaultLang:  language.English,
-			},
-		},
-		{
-			name:           "prepareInstanceQuery sql err",
-			additionalArgs: []reflect.Value{reflect.ValueOf("")},
-			prepare:        prepareInstanceQuery,
-			want: want{
-				sqlExpectations: mockQueryErr(
-					regexp.QuoteMeta(instanceQuery),
-					sql.ErrConnDone,
-				),
-				err: func(err error) (error, bool) {
-					if !errors.Is(err, sql.ErrConnDone) {
-						return fmt.Errorf("err should be sql.ErrConnDone got: %w", err), false
-					}
-					return nil, true
-				},
-			},
-			object: (*Instance)(nil),
-		},
 		{
 			name: "prepareInstancesQuery no result",
 			prepare: func(ctx context.Context, db prepareDatabase) (sq.SelectBuilder, func(*sql.Rows) (*Instances, error)) {