pcleanup dependencies:

* Consolidate multiple different HTML/XML/RSS libraries to use the Cheerio stack
* Remove unused deps
* Move dev dependencies to correct section
* Pin versions where missing

packages/backend/package.json

@@ -99,10 +99,8 @@
 		"archiver": "7.0.1",
 		"argon2": "^0.40.1",
 		"axios": "1.7.4",
-		"async-mutex": "0.5.0",
 		"bcryptjs": "2.4.3",
 		"blurhash": "2.0.5",
-		"body-parser": "1.20.3",
 		"bullmq": "5.51.1",
 		"cacheable-lookup": "7.0.0",
 		"canvas": "^3.1.0",
@@ -110,13 +108,14 @@
 		"chalk": "5.4.1",
 		"chalk-template": "1.1.0",
 		"cheerio": "1.0.0",
-		"chokidar": "3.6.0",
 		"cli-highlight": "2.1.11",
 		"color-convert": "2.0.1",
 		"content-disposition": "0.5.4",
 		"date-fns": "2.30.0",
 		"deep-email-validator": "0.1.21",
-		"fast-xml-parser": "4.4.1",
+		"dom-serializer": "2.0.0",
+		"domhandler": "5.0.3",
+		"domutils": "3.2.2",
 		"fastify": "5.3.2",
 		"fastify-raw-body": "5.0.0",
 		"feed": "4.2.2",
@@ -125,10 +124,9 @@
 		"form-data": "4.0.2",
 		"glob": "11.0.0",
 		"got": "14.4.7",
-		"happy-dom": "16.8.1",
 		"hpagent": "1.2.0",
 		"htmlescape": "1.1.1",
-		"http-link-header": "1.1.3",
+		"htmlparser2": "10.0.0",
 		"ioredis": "5.6.1",
 		"ip-cidr": "4.0.2",
 		"ipaddr.js": "2.2.0",
@@ -136,26 +134,20 @@
 		"js-yaml": "4.1.0",
 		"json5": "2.2.3",
 		"jsonld": "8.3.3",
-		"jsrsasign": "11.1.0",
 		"juice": "11.0.1",
 		"megalodon": "workspace:*",
 		"meilisearch": "0.50.0",
-		"microformats-parser": "2.0.2",
 		"mime-types": "2.1.35",
 		"misskey-js": "workspace:*",
 		"misskey-reversi": "workspace:*",
-		"moment": "^2.30.1",
+		"moment": "2.30.1",
 		"ms": "3.0.0-canary.1",
 		"nanoid": "5.1.5",
 		"nested-property": "4.0.0",
 		"node-fetch": "3.3.2",
 		"nodemailer": "6.10.1",
-		"oauth": "0.10.2",
-		"oauth2orize": "1.12.0",
-		"oauth2orize-pkce": "0.1.2",
 		"os-utils": "0.0.14",
 		"otpauth": "9.4.0",
-		"parse5": "7.3.0",
 		"pg": "8.15.6",
 		"pkce-challenge": "4.1.0",
 		"probe-image-size": "7.2.3",
@@ -165,20 +157,16 @@
 		"pug": "3.0.3",
 		"qrcode": "1.5.4",
 		"random-seed": "0.3.0",
-		"ratelimiter": "3.4.1",
 		"re2": "1.21.4",
 		"redis-info": "3.1.0",
 		"redis-lock": "0.1.4",
 		"reflect-metadata": "0.2.2",
 		"rename": "1.0.4",
-		"rss-parser": "3.13.0",
-		"rxjs": "7.8.2",
 		"sanitize-html": "2.16.0",
 		"secure-json-parse": "3.0.2",
 		"sharp": "0.34.1",
 		"slacc": "0.0.10",
 		"strict-event-emitter-types": "2.0.0",
-		"stringz": "2.1.0",
 		"systeminformation": "5.25.11",
 		"tinycolor2": "1.6.0",
 		"tmp": "0.2.3",
@@ -202,12 +190,10 @@
 		"@types/accepts": "1.3.7",
 		"@types/archiver": "6.0.3",
 		"@types/bcryptjs": "2.4.6",
-		"@types/body-parser": "1.19.5",
 		"@types/color-convert": "2.0.4",
 		"@types/content-disposition": "0.5.8",
 		"@types/fluent-ffmpeg": "2.1.27",
 		"@types/htmlescape": "1.1.3",
-		"@types/http-link-header": "1.0.7",
 		"@types/jest": "29.5.14",
 		"@types/js-yaml": "4.0.9",
 		"@types/jsonld": "1.5.15",
@@ -225,7 +211,6 @@
 		"@types/pug": "2.0.10",
 		"@types/qrcode": "1.5.5",
 		"@types/random-seed": "0.3.5",
-		"@types/ratelimiter": "3.4.6",
 		"@types/redis-info": "3.0.3",
 		"@types/rename": "1.0.7",
 		"@types/sanitize-html": "2.15.0",