feat: add basic storage usage tracking

packages/convex/model/user.ts

@@ -1,5 +1,7 @@
 import type { MutationCtx, QueryCtx } from "@fileone/convex/server"
+import type { Doc } from "../_generated/dataModel"
 import { authComponent } from "../auth"
+import { type AuthenticatedQueryCtx, authorizedGet } from "../functions"
 import * as Err from "../shared/error"
 
 export type AuthUser = Awaited<ReturnType<typeof authComponent.getAuthUser>>
@@ -23,3 +25,10 @@ export async function userOrThrow(ctx: QueryCtx | MutationCtx) {
 	const user = await authComponent.getAuthUser(ctx)
 	return user
 }
+
+export async function queryInfo(ctx: AuthenticatedQueryCtx) {
+	return await ctx.db
+		.query("userInfo")
+		.withIndex("byUserId", (q) => q.eq("userId", ctx.user._id))
+		.first()
+}