refactor: always fallback to in-memory relay

yarn.lock

@@ -3277,6 +3277,7 @@ __metadata:
   dependencies:
     "@sqlite.org/sqlite-wasm": ^3.45.1-build1
     "@types/debug": ^4.1.12
+    "@types/sharedworker": ^0.0.112
     "@types/uuid": ^9.0.7
     esbuild: ^0.20.1
     eventemitter3: ^5.0.1
@@ -3925,6 +3926,13 @@ __metadata:
   languageName: node
   linkType: hard
 
+"@types/sharedworker@npm:^0.0.112":
+  version: 0.0.112
+  resolution: "@types/sharedworker@npm:0.0.112"
+  checksum: 4738b53b1c6bcc894790e7b5a1ad311f9639162fe94c0946d1f2609731dc43fdda42dbb80f41168ad4f397077a6c8db4048cd1c85b007da6a8ffe8df71cf8d78
+  languageName: node
+  linkType: hard
+
 "@types/simple-peer@npm:*":
   version: 9.11.8
   resolution: "@types/simple-peer@npm:9.11.8"