Respect Reddit rate limit delays

src/services/monitor.ts

@@ -1,4 +1,4 @@
-import type { RedditApiClient, RedditPost } from '../reddit/api.js';
+import { RedditRateLimitError, type RedditApiClient, type RedditPost } from '../reddit/api.js';
 import type { PostsRepository, MessagesRepository } from '../database/repositories.js';
 import type { Config } from '../config/index.js';
 import type { Logger } from '../utils/logger.js';
@@ -92,7 +92,10 @@ export class MonitorService {
           }
         }
       } catch (error) {
-        this.logger.error(`Failed to fetch posts from r/${subreddit.name}:`, error);
+        if (error instanceof RedditRateLimitError) throw error;
+
+        const errorMessage = error instanceof Error ? error.message : String(error);
+        this.logger.error(`Failed to fetch posts from r/${subreddit.name}: ${errorMessage}`);
       }
 
       // Small delay between subreddit fetches to be nice to Reddit