feat: auto nsfw detection (#8840)

* feat: auto nsfw detection

* ✌️

* Update ja-JP.yml

* Update ja-JP.yml

* ポルノ判定のしきい値を高めに

* エラーハンドリングちゃんとした

* Update ja-JP.yml

* 感度設定を強化

* refactor

* feat: add video support for auto nsfw detection

* rename: image -> media

* .js

* fix: add missing error handling

* fix: use valid pathname instead of using filename due to invalid usage

* perf(nsfw-detection): decode frames

* disable detection of video for some reasons

* perf(nsfw-detection): streamify detection process for video

* disable disallowUploadWhenPredictedAsPorn option

* fix(nsfw-detection): improve reliability

* fix(nsfw-detection): use Math.ceil instead of Math.round

* perf(nsfw-detection): delete tmp frames after used

* fix(nsfw-detection): FSWatcher does not emit ready event

* perf(nsfw-detection): skip black frames

* refactor: strip exists check

* Update package.json

* めっちゃ変えた

* lint

* Update COPYING

* オプションで動画解析できるように

* Update yarn.lock

* Update CHANGELOG.md

Co-authored-by: Acid Chicken (硫酸鶏) <root@acid-chicken.com>

packages/backend/package.json

@@ -23,6 +23,7 @@
 		"@peertube/http-signature": "1.6.0",
 		"@sinonjs/fake-timers": "9.1.2",
 		"@syuilo/aiscript": "0.11.1",
+		"@tensorflow/tfjs-node": "3.18.0",
 		"abort-controller": "3.0.0",
 		"ajv": "8.11.0",
 		"archiver": "5.3.1",
@@ -36,6 +37,7 @@
 		"cbor": "8.1.0",
 		"chalk": "5.0.1",
 		"chalk-template": "0.4.0",
+		"chokidar": "3.3.1",
 		"cli-highlight": "2.1.11",
 		"color-convert": "2.0.1",
 		"content-disposition": "0.5.4",
@@ -74,6 +76,7 @@
 		"nested-property": "4.0.0",
 		"node-fetch": "3.2.6",
 		"nodemailer": "6.7.6",
+		"nsfwjs": "2.4.1",
 		"os-utils": "0.0.14",
 		"parse5": "7.0.0",
 		"pg": "8.7.3",