feat: google analytics (#15451)

* wip backend

* wip frontend

* build misskey-js

* implement control panel

* fix

* introduce analytics wrapper

* spdx

* Update analytics.ts

* Update common.ts

* wip

* wip

* wip

* wip

* wip

* Update CHANGELOG.md

---------

Co-authored-by: kakkokari-gtyih <67428053+kakkokari-gtyih@users.noreply.github.com>

packages/backend/src/server/api/endpoints/admin/update-meta.ts

@@ -84,6 +84,7 @@ export const paramDef = {
 		turnstileSiteKey: { type: 'string', nullable: true },
 		turnstileSecretKey: { type: 'string', nullable: true },
 		enableTestcaptcha: { type: 'boolean' },
+		googleAnalyticsMeasurementId: { type: 'string', nullable: true },
 		sensitiveMediaDetection: { type: 'string', enum: ['none', 'all', 'local', 'remote'] },
 		sensitiveMediaDetectionSensitivity: { type: 'string', enum: ['medium', 'low', 'high', 'veryLow', 'veryHigh'] },
 		setSensitiveFlagAutomatically: { type: 'boolean' },
@@ -371,6 +372,12 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 				set.enableTestcaptcha = ps.enableTestcaptcha;
 			}
 
+			if (ps.googleAnalyticsMeasurementId !== undefined) {
+				// 空文字列をnullにしたいので??は使わない
+				// eslint-disable-next-line @typescript-eslint/prefer-nullish-coalescing
+				set.googleAnalyticsMeasurementId = ps.googleAnalyticsMeasurementId || null;
+			}
+
 			if (ps.sensitiveMediaDetection !== undefined) {
 				set.sensitiveMediaDetection = ps.sensitiveMediaDetection;
 			}