feat: import web relay worker from monorepo

migrate-add-user-file.sql

@@ -0,0 +1,14 @@
+CREATE TABLE IF NOT EXISTS "user_file" (
+  "id" TEXT PRIMARY KEY NOT NULL,
+  "user_id" TEXT NOT NULL,
+  "filename" TEXT NOT NULL,
+  "original_name" TEXT NOT NULL,
+  "content_type" TEXT NOT NULL,
+  "size" INTEGER NOT NULL,
+  "s3_key" TEXT NOT NULL,
+  "url" TEXT NOT NULL,
+  "uploaded_at" INTEGER NOT NULL,
+  FOREIGN KEY ("user_id") REFERENCES "user"("id") ON DELETE CASCADE
+);
+
+CREATE INDEX IF NOT EXISTS "user_file_user_id_idx" ON "user_file" ("user_id");