docs: remove redis-stream-garnet, update docs for all destinations

- Remove redis-stream-garnet quickstart entirely (Garnet doesn't support
  XADD/Redis Streams, see github.com/microsoft/garnet/issues/64)
- redis-stream.md: remove Garnet from compatible systems, add warning,
  add Quick Starts and See Also sections
- redis-pubsub.md: add Quick Starts and See Also sections
- support-matrix.md: remove redis-stream-garnet quickstart references,
  add Garnet limitation warning, clarify Pub/Sub only in matrix
- overview.md: add Garnet to redis-pubsub compatible systems

Author: FortuneN

docs/user-guide/destinations/overview.md

@@ -248,7 +248,7 @@ For detailed information about each loader and their properties, see **[Certific
 | **[amqp-1](amqp-1.md)** | AMQP 1 | ActiveMQ Artemis, Azure Service Bus, Azure Event Hubs, Qpid, RabbitMQ 4.0+ |
 | **[mqtt-3](mqtt-3.md)** | MQTT 3 | Mosquitto, HiveMQ, EMQX, VerneMQ, NanoMQ, RabbitMQ, AWS IoT, Azure IoT Hub |
 | **[mqtt-5](mqtt-5.md)** | MQTT 5 | HiveMQ, EMQX, VerneMQ, NanoMQ, Mosquitto 2.0+, RabbitMQ, Azure Event Grid |
-| **[redis-pubsub](redis-pubsub.md)** | Redis RESP | Redis, Valkey, Dragonfly, KeyDB, ElastiCache, Azure Cache for Redis, Upstash |
+| **[redis-pubsub](redis-pubsub.md)** | Redis RESP | Redis, Valkey, Dragonfly, KeyDB, Garnet, ElastiCache, Azure Cache for Redis, Upstash |
 | **[redis-stream](redis-stream.md)** | Redis RESP | Redis 5.0+, Valkey, Dragonfly, KeyDB, ElastiCache, Azure Cache for Redis, Upstash |
 | **[nats](nats.md)** | NATS Protocol | NATS Server, Synadia Cloud |
 | **[nats-jetstream](nats-jetstream.md)** | NATS JetStream | NATS Server, Synadia Cloud |

docs/user-guide/destinations/redis-pubsub.md

@@ -186,3 +186,27 @@ kete.routes.auth-redis.destination.username=keycloak
 kete.routes.auth-redis.destination.password=secret
 kete.routes.auth-redis.destination.client-name=keycloak-events
 ```
+
+
+
+## Quick Starts
+
+| Broker | Quickstart |
+|--------|------------|
+| Redis | [redis-pubsub-redis](../../quick-starts/redis-pubsub-redis/) |
+| Valkey | [redis-pubsub-valkey](../../quick-starts/redis-pubsub-valkey/) |
+| Dragonfly | [redis-pubsub-dragonfly](../../quick-starts/redis-pubsub-dragonfly/) |
+| KeyDB | [redis-pubsub-keydb](../../quick-starts/redis-pubsub-keydb/) |
+| Microsoft Garnet | [redis-pubsub-garnet](../../quick-starts/redis-pubsub-garnet/) |
+| Azure Cache for Redis | [redis-pubsub-azure-cache-for-redis](../../quick-starts/redis-pubsub-azure-cache-for-redis/) |
+| Upstash | [redis-pubsub-upstash](../../quick-starts/redis-pubsub-upstash/) |
+
+
+
+## See Also
+
+- [Redis Stream Destination](redis-stream.md) — Persistent alternative with consumer groups
+- [Serializers](../serializers/overview.md)
+- [Matchers](../matchers/overview.md)
+- [Event Types](../event-types.md)
+- [Certificate Loaders](../certificate-loaders/overview.md)

docs/user-guide/destinations/redis-stream.md

@@ -22,7 +22,9 @@ Stream Keycloak events to Redis Stream for persistent, ordered message storage.
 | **Upstash** | Serverless Redis with Streams |
 | **Dragonfly** | Redis-compatible, multi-threaded |
 | **KeyDB** | Redis-compatible, multi-threaded |
-| **Microsoft Garnet** | High-performance Redis-compatible cache |
+
+!!! warning "Microsoft Garnet"
+    Garnet does **not** support Redis Streams (`XADD` command). Use [Redis Pub/Sub](redis-pubsub.md) with Garnet instead. See [github.com/microsoft/garnet/issues/64](https://github.com/microsoft/garnet/issues/64).
 
 
 
@@ -239,3 +241,26 @@ kete.routes.trimmed-redis.destination.stream=keycloak-events
 kete.routes.trimmed-redis.destination.max-len=50000
 kete.routes.trimmed-redis.destination.approximate-trimming=true
 ```
+
+
+
+## Quick Starts
+
+| Broker | Quickstart |
+|--------|------------|
+| Redis | [redis-stream-redis](../../quick-starts/redis-stream-redis/) |
+| Valkey | [redis-stream-valkey](../../quick-starts/redis-stream-valkey/) |
+| Dragonfly | [redis-stream-dragonfly](../../quick-starts/redis-stream-dragonfly/) |
+| KeyDB | [redis-stream-keydb](../../quick-starts/redis-stream-keydb/) |
+| Azure Cache for Redis | [redis-stream-azure-cache-for-redis](../../quick-starts/redis-stream-azure-cache-for-redis/) |
+| Upstash | [redis-stream-upstash](../../quick-starts/redis-stream-upstash/) |
+
+
+
+## See Also
+
+- [Redis Pub/Sub Destination](redis-pubsub.md) — Fire-and-forget alternative
+- [Serializers](../serializers/overview.md)
+- [Matchers](../matchers/overview.md)
+- [Event Types](../event-types.md)
+- [Certificate Loaders](../certificate-loaders/overview.md)

docs/user-guide/destinations/support-matrix.md

@@ -12,7 +12,7 @@ This page provides a comprehensive cross-reference of message brokers and the de
 | **Valkey** | ❌ | ❌ | ❌ | ❌ | ❌ | ❌ | ✅ | ❌ | ❌ | ❌ | ❌ | ❌ | ❌ |
 | **Dragonfly** | ❌ | ❌ | ❌ | ❌ | ❌ | ❌ | ✅ | ❌ | ❌ | ❌ | ❌ | ❌ | ❌ |
 | **KeyDB** | ❌ | ❌ | ❌ | ❌ | ❌ | ❌ | ✅ | ❌ | ❌ | ❌ | ❌ | ❌ | ❌ |
-| **Microsoft Garnet** | ❌ | ❌ | ❌ | ❌ | ❌ | ❌ | ✅ | ❌ | ❌ | ❌ | ❌ | ❌ | ❌ |
+| **Microsoft Garnet** | ❌ | ❌ | ❌ | ❌ | ❌ | ❌ | ✅ Pub/Sub only | ❌ | ❌ | ❌ | ❌ | ❌ | ❌ |
 | **Amazon ElastiCache** | ❌ | ❌ | ❌ | ❌ | ❌ | ❌ | ✅ | ❌ | ❌ | ❌ | ❌ | ❌ | ❌ |
 | **Azure Cache for Redis** | ❌ | ❌ | ❌ | ❌ | ❌ | ❌ | ✅ | ❌ | ❌ | ❌ | ❌ | ❌ | ❌ |
 | **Google Cloud Memorystore** | ❌ | ❌ | ❌ | ❌ | ❌ | ❌ | ✅ | ❌ | ❌ | ❌ | ❌ | ❌ | ❌ |
@@ -233,15 +233,18 @@ Use `destination.kind=redis-pubsub` or `destination.kind=redis-stream`:
 - **Valkey** - Redis fork, fully compatible
 - **Dragonfly** - Redis-compatible, multi-threaded
 - **KeyDB** - Redis-compatible, multi-threaded
-- **Microsoft Garnet** - Redis-compatible, .NET-based
+- **Microsoft Garnet** - Redis-compatible, .NET-based (Pub/Sub only, no Streams)
 - **Amazon ElastiCache** - AWS-managed Redis
 - **Azure Cache for Redis** - Azure-managed Redis
 - **Google Cloud Memorystore** - GCP-managed Redis
 - **Upstash** - Serverless Redis
 
 **Quickstarts available (Pub/Sub):** [redis-pubsub-redis](../../quick-starts/redis-pubsub-redis/), [redis-pubsub-valkey](../../quick-starts/redis-pubsub-valkey/), [redis-pubsub-dragonfly](../../quick-starts/redis-pubsub-dragonfly/), [redis-pubsub-keydb](../../quick-starts/redis-pubsub-keydb/), [redis-pubsub-garnet](../../quick-starts/redis-pubsub-garnet/), [redis-pubsub-azure-cache-for-redis](../../quick-starts/redis-pubsub-azure-cache-for-redis/), [redis-pubsub-upstash](../../quick-starts/redis-pubsub-upstash/)
 
-**Quickstarts available (Streams):** [redis-stream-redis](../../quick-starts/redis-stream-redis/), [redis-stream-valkey](../../quick-starts/redis-stream-valkey/), [redis-stream-dragonfly](../../quick-starts/redis-stream-dragonfly/), [redis-stream-keydb](../../quick-starts/redis-stream-keydb/), [redis-stream-garnet](../../quick-starts/redis-stream-garnet/), [redis-stream-azure-cache-for-redis](../../quick-starts/redis-stream-azure-cache-for-redis/), [redis-stream-upstash](../../quick-starts/redis-stream-upstash/)
+**Quickstarts available (Streams):** [redis-stream-redis](../../quick-starts/redis-stream-redis/), [redis-stream-valkey](../../quick-starts/redis-stream-valkey/), [redis-stream-dragonfly](../../quick-starts/redis-stream-dragonfly/), [redis-stream-keydb](../../quick-starts/redis-stream-keydb/), [redis-stream-azure-cache-for-redis](../../quick-starts/redis-stream-azure-cache-for-redis/), [redis-stream-upstash](../../quick-starts/redis-stream-upstash/)
+
+!!! warning "Microsoft Garnet"
+    Garnet supports Redis Pub/Sub but does **not** support Redis Streams (`XADD`). See [github.com/microsoft/garnet/issues/64](https://github.com/microsoft/garnet/issues/64).
 
 See: [Redis Pub/Sub Destination](redis-pubsub.md), [Redis Stream Destination](redis-stream.md)
 
@@ -423,7 +426,6 @@ All quickstarts are in the `quick-starts/` directory:
 | Redis Stream | Valkey | `redis-stream-valkey/` |
 | Redis Stream | Dragonfly | `redis-stream-dragonfly/` |
 | Redis Stream | KeyDB | `redis-stream-keydb/` |
-| Redis Stream | Microsoft Garnet | `redis-stream-garnet/` |
 | Redis Stream | Azure Cache for Redis | `redis-stream-azure-cache-for-redis/` |
 | Redis Stream | Upstash | `redis-stream-upstash/` |
 | NATS | NATS Server | `nats-nats-server/` |