feat: add channel create responder and redis webhook cache

Catalogger.Backend/Database/Redis/RedisService.cs

@@ -0,0 +1,24 @@
+using System.Text.Json;
+using Humanizer;
+using StackExchange.Redis;
+
+namespace Catalogger.Backend.Database.Redis;
+
+public class RedisService(Config config)
+{
+    private readonly ConnectionMultiplexer _multiplexer = ConnectionMultiplexer.Connect(config.Database.Redis!);
+
+    public IDatabase GetDatabase(int db = -1) => _multiplexer.GetDatabase(db);
+
+    public async Task SetAsync<T>(string key, T value, TimeSpan? expiry = null)
+    {
+        var json = JsonSerializer.Serialize(value);
+        await GetDatabase().StringSetAsync(key, json, expiry);
+    }
+
+    public async Task<T?> GetAsync<T>(string key)
+    {
+        var value = await GetDatabase().StringGetAsync(key);
+        return value.IsNull ? default : JsonSerializer.Deserialize<T>(value!);
+    }
+}