fix: implement debounce for config saves + fix duplicate embed issues

src/config/storage.ts

@@ -25,6 +25,7 @@ export class ConfigStorage {
   private configPath: string;
   private config: MultiGuildConfig;
   private logger: Logger;
+  private saveTimeout: NodeJS.Timeout | null = null;
 
   constructor() {
     this.logger = new Logger('ConfigStorage');
@@ -73,12 +74,32 @@ export class ConfigStorage {
   }
 
   private save(): void {
+    // Debounce saves to prevent excessive writes
+    if (this.saveTimeout) {
+      clearTimeout(this.saveTimeout);
+    }
+    
+    this.saveTimeout = setTimeout(() => {
+      this.forceSave();
+    }, 100); // 100ms debounce
+  }
+
+  private forceSave(): void {
     try {
       writeFileSync(this.configPath, JSON.stringify(this.config, null, 2), 'utf-8');
       this.logger.info('Saved configuration to storage');
     } catch (error: any) {
       this.logger.error(`Failed to save config: ${error.message}`);
     }
+    this.saveTimeout = null;
+  }
+
+  public flush(): void {
+    // Force immediate save (useful for shutdown)
+    if (this.saveTimeout) {
+      clearTimeout(this.saveTimeout);
+      this.forceSave();
+    }
   }
 
   private getDefaultConfig(): GuildConfig {

src/index.ts

@@ -188,6 +188,9 @@ class UptimeKumaDiscordBot {
       this.uptimeKuma.disconnect();
       this.discord.disconnect();
 
+      // Flush any pending config saves
+      configStorage.flush();
+
       this.logger.info('Shutdown complete');
       process.exit(0);
     } catch (error: any) {

src/services/discord.service.ts

@@ -362,8 +362,9 @@ export class DiscordService {
         }
       } catch (error: any) {
         this.logger.error(`Failed to update message for guild ${guildId}: ${error.message}`);
+        // Don't create new messages here - let the main flow handle it
+        // Just clear the message IDs so next update will create new ones
         configStorage.setMessageIds(guildId, []);
-        await this.createNewMessages(guildId, channel, embeds);
         return;
       }
     }