fix: retry transient AniList safeStorage failures

src/core/services/anilist/anilist-token-store.test.ts

@@ -38,6 +38,24 @@ function createPassthroughStorage(): SafeStorageLike {
   };
 }
 
+function createTransientUnavailableStorage(): SafeStorageLike & {
+  setAvailable: (next: boolean) => void;
+} {
+  let available = false;
+  return {
+    isEncryptionAvailable: () => available,
+    encryptString: (value: string) => Buffer.from(`enc:${value}`, 'utf-8'),
+    decryptString: (value: Buffer) => {
+      const raw = value.toString('utf-8');
+      return raw.startsWith('enc:') ? raw.slice(4) : raw;
+    },
+    getSelectedStorageBackend: () => (available ? 'gnome_libsecret' : 'unknown'),
+    setAvailable(next: boolean) {
+      available = next;
+    },
+  } as SafeStorageLike & { setAvailable: (next: boolean) => void };
+}
+
 test('anilist token store saves and loads encrypted token', () => {
   const filePath = createTempTokenFile();
   const store = createAnilistTokenStore(filePath, createLogger(), createStorage(true));
@@ -61,6 +79,27 @@ test('anilist token store refuses to persist token when encryption unavailable',
   assert.equal(store.loadToken(), null);
 });
 
+test('anilist token store retries safeStorage after transient encryption unavailability', () => {
+  const filePath = createTempTokenFile();
+  fs.writeFileSync(
+    filePath,
+    JSON.stringify({
+      encryptedToken: Buffer.from('enc:stored-token', 'utf-8').toString('base64'),
+      updatedAt: Date.now(),
+    }),
+    'utf-8',
+  );
+  const storage = createTransientUnavailableStorage();
+  const store = createAnilistTokenStore(filePath, createLogger(), storage);
+
+  assert.equal(store.loadToken(), null);
+  storage.setAvailable(true);
+
+  assert.equal(store.loadToken(), 'stored-token');
+  assert.equal(store.saveToken('new-token'), true);
+  assert.equal(store.loadToken(), 'new-token');
+});
+
 test('anilist token store migrates legacy plaintext to encrypted', () => {
   const filePath = createTempTokenFile();
   fs.writeFileSync(

src/core/services/anilist/anilist-token-store.ts

@@ -69,7 +69,6 @@ export function createAnilistTokenStore(
           `AniList token encryption unavailable: safeStorage.isEncryptionAvailable() is false. ` +
             `Context: ${getSafeStorageDebugContext()}`,
         );
-        safeStorageUsable = false;
         return false;
       }
       const probe = storage.encryptString('__subminer_anilist_probe__');
@@ -77,7 +76,6 @@ export function createAnilistTokenStore(
         notifyUser(
           'AniList token encryption probe failed: safeStorage.encryptString() returned plaintext bytes.',
         );
-        safeStorageUsable = false;
         return false;
       }
       const roundTrip = storage.decryptString(probe);
@@ -85,7 +83,6 @@ export function createAnilistTokenStore(
         notifyUser(
           'AniList token encryption probe failed: encrypt/decrypt round trip returned unexpected content.',
         );
-        safeStorageUsable = false;
         return false;
       }
       safeStorageUsable = true;
@@ -96,7 +93,6 @@ export function createAnilistTokenStore(
         `AniList token encryption unavailable: safeStorage probe threw an error. ` +
           `Context: ${getSafeStorageDebugContext()}`,
       );
-      safeStorageUsable = false;
       return false;
     }
   };