Create GME list endpoint

functions/api/gme/list.ts

@@ -0,0 +1,16 @@
+export async function onRequestGet(context: RequestContext) {
+  const list = await context.env.DATA.list({ prefix: "gamemod_" });
+  const entries = [];
+
+  for (const key of list.keys)
+    entries.push({
+      metadata: key.metadata,
+      user: key.name.replace("gamemod_", ""),
+    });
+
+  return new Response(JSON.stringify(entries), {
+    headers: {
+      "content-type": "application/json",
+    },
+  });
+}