fixed more lint issues

libs/cache/src/connection-manager.ts

@@ -42,7 +42,11 @@ export class RedisConnectionManager {
         RedisConnectionManager.sharedConnections.set(name, connection);
         this.logger.info(`Created shared Redis connection: ${name}`);
       }
-      return RedisConnectionManager.sharedConnections.get(name)!;
+      const connection = RedisConnectionManager.sharedConnections.get(name);
+      if (!connection) {
+        throw new Error(`Expected connection ${name} to exist in shared connections`);
+      }
+      return connection;
     } else {
       // Create unique connection per instance
       const uniqueName = `${name}-${Date.now()}-${Math.random().toString(36).substr(2, 9)}`;
@@ -113,7 +117,7 @@ export class RedisConnectionManager {
     try {
       await connection.quit();
     } catch (error) {
-      this.logger.warn('Error closing Redis connection:', error);
+      this.logger.warn('Error closing Redis connection:', error as Error);
     }
   }
 

libs/cache/src/index.ts

@@ -21,7 +21,11 @@ export function createCache(options: CacheOptions): CacheProvider {
     const cacheKey = `${defaultOptions.keyPrefix}-${defaultOptions.ttl}`;
 
     if (cacheInstances.has(cacheKey)) {
-      return cacheInstances.get(cacheKey)!;
+      const cachedInstance = cacheInstances.get(cacheKey);
+      if (!cachedInstance) {
+        throw new Error(`Expected cache instance ${cacheKey} to exist`);
+      }
+      return cachedInstance;
     }
 
     const cache = new RedisCache(defaultOptions);