Add legacy skin and cape routes, improve error handling

Introduces legacy routes for Minecraft skins and capes to support older endpoints. Enhances error handling in sessionsRepository for missing skins/capes, adds getActiveSkin and getActiveCape to sessionsService, and improves error logging in server.js.

services/sessionsService.js

@@ -167,9 +167,37 @@ async function joinLegacyServer({ name, sessionId, serverId }) {
     return { code: 200, message: "OK" }
 }
 
+async function getActiveSkin({ username }) {
+    try {
+        const dbUser = await authRepository.getUser(username)
+        const activeSkin = await sessionRepository.getActiveSkin(dbUser.user.uuid)
+        return activeSkin
+    } catch (error) {
+        if (!(error instanceof DefaultError)) {
+            throw new DefaultError(400, "Bad Request", error.toString())
+        }
+        throw error
+    }
+}
+
+async function getActiveCape({ username }) {
+    try {
+        const dbUser = await authRepository.getUser(username)
+        const activeCape = await sessionRepository.getActiveCape(dbUser.user.uuid)
+        return activeCape
+    } catch (error) {
+        if (!(error instanceof DefaultError)) {
+            throw new DefaultError(400, "Bad Request", error.toString())
+        }
+        throw error
+    }
+}
+
 module.exports = {
     getProfile,
     joinServer,
+    getActiveCape,
+    getActiveSkin,
     hasJoinedServer,
     joinLegacyServer,
     getBlockedServers,

services/userService.js

@@ -523,6 +523,7 @@ module.exports = {
     getPlayerProperty,
     addPlayerProperty,
     updatePreferences,
+    uploadSkinFromUrl,
     getSettingsSchema,
     getPlayerBanStatus,
     removeProfileAction,