sq/todos/SQ-013-topic-management.md

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