feat: persist prebuild definitions on template import (#16951)

This PR allows provisioners to recognise and report prebuild definitions
to the coder control plane. It also allows the coder control plane to
then persist these to its store.

closes https://github.com/coder/internal/issues/507

---------

Signed-off-by: Danny Kopping <dannykopping@gmail.com>
Co-authored-by: Danny Kopping <dannykopping@gmail.com>
Co-authored-by: evgeniy-scherbina <evgeniy.shcherbina.es@gmail.com>

coderd/database/dbmem/dbmem.go

@@ -4275,6 +4275,21 @@ func (q *FakeQuerier) GetPresetByWorkspaceBuildID(_ context.Context, workspaceBu
 	return database.TemplateVersionPreset{}, sql.ErrNoRows
 }
 
+func (q *FakeQuerier) GetPresetParametersByPresetID(_ context.Context, presetID uuid.UUID) ([]database.TemplateVersionPresetParameter, error) {
+	q.mutex.RLock()
+	defer q.mutex.RUnlock()
+
+	parameters := make([]database.TemplateVersionPresetParameter, 0)
+	for _, parameter := range q.presetParameters {
+		if parameter.TemplateVersionPresetID != presetID {
+			continue
+		}
+		parameters = append(parameters, parameter)
+	}
+
+	return parameters, nil
+}
+
 func (q *FakeQuerier) GetPresetParametersByTemplateVersionID(_ context.Context, templateVersionID uuid.UUID) ([]database.TemplateVersionPresetParameter, error) {
 	q.mutex.RLock()
 	defer q.mutex.RUnlock()
@@ -4293,7 +4308,6 @@ func (q *FakeQuerier) GetPresetParametersByTemplateVersionID(_ context.Context,
 				continue
 			}
 			parameters = append(parameters, parameter)
-			break
 		}
 	}
 
@@ -8854,6 +8868,11 @@ func (q *FakeQuerier) InsertPreset(_ context.Context, arg database.InsertPresetP
 		TemplateVersionID: arg.TemplateVersionID,
 		Name:              arg.Name,
 		CreatedAt:         arg.CreatedAt,
+		DesiredInstances:  arg.DesiredInstances,
+		InvalidateAfterSecs: sql.NullInt32{
+			Int32: 0,
+			Valid: true,
+		},
 	}
 	q.presets = append(q.presets, preset)
 	return preset, nil