feat: add exponential backoff delay to non-capacity error retries

Errors like lost IDB connections, closing databases, and backing store
failures now wait with exponential backoff (100ms * 2^attempt +/- 25%
jitter) before retrying, giving the DB connection time to recover.

Capacity errors (QuotaExceeded, disk full) keep immediate retry with
eviction.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: leshniak

lib/OnyxUtils.ts

@@ -838,8 +838,15 @@ function retryOperation<TMethod extends RetriableOnyxOperation>(error: Error, on
     }
 
     if (!isStorageCapacityError) {
+        const delay = getRetryDelay(currentRetryAttempt);
+        const isConnectionError = CONNECTION_ERRORS.some((connError) => errorName?.includes(connError) || errorMessage?.includes(connError));
+
+        if (isConnectionError) {
+            Logger.logInfo(`Connection error detected, retrying with backoff (${delay}ms). Error: ${error}. onyxMethod: ${onyxMethod.name}. retryAttempt: ${nextRetryAttempt}/${MAX_STORAGE_OPERATION_RETRY_ATTEMPTS}`);
+        }
+
         // @ts-expect-error No overload matches this call.
-        return onyxMethod(defaultParams, nextRetryAttempt);
+        return wait(delay).then(() => onyxMethod(defaultParams, nextRetryAttempt));
     }
 
     // Find the least recently accessed evictable key that we can remove