Remove unused auth cache exports

Author: tkxkd0159

lib/auth/server.ts

@@ -24,7 +24,7 @@ import {
 import { findUserById } from "@/lib/auth/users";
 import type { AppSessionIdentity, AuthUser } from "@/types/db";
 
-export type AuthSessionIdentity = {
+type AuthSessionIdentity = {
   id: string;
   isInternalAdmin: boolean;
   isSignupComplete: boolean;

lib/auth/user-cache.ts

@@ -143,19 +143,6 @@ export async function syncCachedAuthUser(
   }
 }
 
-export async function invalidateCachedAuthUser(userId: string) {
-  try {
-    const backend = await getCacheBackend();
-    if (backend.provider === "disabled") {
-      return;
-    }
-
-    await backend.del(getAuthUserCacheKey(userId));
-  } catch (error) {
-    console.error("[auth] Failed to invalidate auth user cache entry.", error);
-  }
-}
-
 function getAuthUserCacheKey(userId: string) {
   return `${AUTH_USER_CACHE_KEY_PREFIX}:${userId}`;
 }

lib/cache/backend.ts

@@ -4,7 +4,7 @@ import {
   type CacheProvider,
 } from "@/lib/env";
 
-export type CacheSetOptions = {
+type CacheSetOptions = {
   onlyIfAbsent?: boolean;
   ttlSeconds?: number;
 };

lib/rate-limit/mutation.ts

@@ -26,7 +26,7 @@ export type MutationRateLimitDecision = {
   resetAt: string;
 };
 
-export type MutationRateLimitStore = {
+type MutationRateLimitStore = {
   provider: CacheProvider;
   incrementWindowCounter(input: {
     key: string;