feat: add initial

Signed-off-by: kjuulh <contact@kjuulh.io>

todos/SQ-024-docker-compose-e2e.md

@@ -0,0 +1,32 @@
+# SQ-024: Docker Compose & E2E Example
+
+**Status:** `[ ] TODO`
+**Blocked by:** SQ-023
+**Priority:** Low
+
+## Description
+
+Docker Compose setup for running a 3-node SQ cluster with MinIO, plus an example publish/subscribe program.
+
+## Files to Create/Modify
+
+- `templates/docker-compose.yaml` - 3 sq-server instances + MinIO
+- `templates/sq-server.Dockerfile` - multi-stage build
+- `examples/publish_subscribe/Cargo.toml`
+- `examples/publish_subscribe/src/main.rs`
+- `scripts/grpc.sh` - grpcurl testing helper
+
+## Docker Compose Services
+
+- `minio` - S3-compatible object storage
+- `sq-1` - SQ node 1 (seeds: sq-2, sq-3)
+- `sq-2` - SQ node 2 (seeds: sq-1, sq-3)
+- `sq-3` - SQ node 3 (seeds: sq-1, sq-2)
+
+## Acceptance Criteria
+
+- [ ] `docker compose up` starts all 4 services
+- [ ] All 3 SQ nodes discover each other (verify via Status RPC)
+- [ ] Example program publishes and consumes messages successfully
+- [ ] Kill one container, cluster continues operating
+- [ ] Restart container, node catches up