feat: initial impl of file proxy

packages/convex/fileshare.ts

@@ -0,0 +1,12 @@
+import { v } from "convex/values"
+import { apiKeyAuthenticatedQuery } from "./functions"
+import * as FileShare from "./model/fileshare"
+
+export const findFileShare = apiKeyAuthenticatedQuery({
+	args: {
+		shareToken: v.string(),
+	},
+	handler: async (ctx, { shareToken }) => {
+		return await FileShare.find(ctx, { shareToken })
+	},
+})