Restore self-hosted /api/imaging/avatar (and badge) endpoints.

The clothing importer and imager helpers pointed at a missing route; proxy Habbo with disk/memory cache so avatars work again.

Co-authored-by: Cursor <[email protected]>

.gitignore

@@ -6,8 +6,9 @@ next-env.d.ts
 *.tsbuildinfo
 # Prisma client is generated by `prisma generate`
 src/generated/
-# Runtime logs (not part of the codebase)
-storage/logs/
+# Runtime avatar/badge imaging disk cache
+public/cache/
+
 prod.log
 *.log