Always retry forever

CLAUDE.md

@@ -303,7 +303,7 @@ When the server broadcasts updates via WebSocket:
 
 7. **Key resolution with stale documentIds**: When `resolveIdempotencyKeys` returns a documentId, check `getDocumentByDocumentId` first. If another document already has that ID (assigned through normal sync), remove the stale pending doc instead of creating a duplicate.
 
-8. **`resolveIdempotencyKeys` must not use `retryForever`**: The HTTP call to `/documents/resolve-keys` is an optimization. If it fails (e.g., SyncReset aborts the fetch), return an empty map and let the pending creates retry normally with their keys. Using `retryForever` can cause deadlocks — the sync pipeline stalls waiting for the retry while the WebSocket is disconnected.
+8. **`resolveIdempotencyKeys` uses `retryForever`**: The HTTP call to `/documents/resolve-keys` retries forever like all other sync service calls. `SyncResetError` is re-thrown by `retryForever`, so the pipeline properly aborts on WebSocket disconnect without deadlocking.
 
 ### E2E Test Configuration
 

frontend/sync-client/src/services/sync-service.ts

@@ -375,7 +375,7 @@ export class SyncService {
             `Resolving ${keys.length} idempotency keys`
         );
 
-        try {
+        return this.retryForever(async () => {
             const response = await this.client(
                 this.getUrl("/documents/resolve-keys"),
                 {
@@ -386,12 +386,11 @@ export class SyncService {
             );
 
             if (!response.ok) {
-                this.logger.warn(
+                throw new Error(
                     `Failed to resolve idempotency keys: ${await SyncService.errorFromResponse(
                         response
                     )}`
                 );
-                return new Map();
             }
 
             const result: { resolved: Record<string, string> } =
@@ -406,12 +405,7 @@ export class SyncService {
             );
 
             return resolved;
-        } catch (e) {
-            this.logger.warn(
-                `Failed to resolve idempotency keys: ${e}`
-            );
-            return new Map();
-        }
+        });
     }
 
     public async ping(): Promise<PingResponse> {