feat: allow unauthenticated uploads

backend/src/auth/guard/jwt.guard.ts

@@ -1,7 +1,14 @@
+import { ExecutionContext } from "@nestjs/common";
 import { AuthGuard } from "@nestjs/passport";
+import { Observable } from "rxjs";
 
 export class JwtGuard extends AuthGuard("jwt") {
   constructor() {
     super();
   }
+  canActivate(
+    context: ExecutionContext
+  ): boolean | Promise<boolean> | Observable<boolean> {
+    return  process.env.ALLOW_UNAUTHENTICATED_SHARES == "true" ? true : super.canActivate(context);
+  }
 }