feat: add initial

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

todos/SQ-013-topic-management.md

@@ -0,0 +1,25 @@
+# SQ-013: Control Plane - Topic Management
+
+**Status:** `[ ] TODO`
+**Blocked by:** SQ-012
+**Priority:** Medium
+
+## Description
+
+Implement the ControlPlane gRPC service for topic CRUD operations.
+
+## Files to Create/Modify
+
+- `crates/sq-server/src/grpc/control_plane.rs` - ControlPlaneService impl
+- `crates/sq-storage/src/topic_metadata.rs` - topic registry (file-backed)
+- `crates/sq-server/src/grpc/mod.rs` - register ControlPlane service
+
+## Acceptance Criteria
+
+- [ ] CreateTopic: creates topic with specified partitions and replication factor
+- [ ] CreateTopic: duplicate name returns AlreadyExists
+- [ ] ListTopics: returns all created topics
+- [ ] DescribeTopic: returns partition info with earliest/latest offsets
+- [ ] DeleteTopic: removes topic from registry
+- [ ] Publish to deleted topic: returns NotFound
+- [ ] Topic metadata persists across server restarts