Add API endpoints to manage ResourceMetadata (ownership, groups, permissions)
for KV resources. This enables administrators to configure granular access
control for stored data.
Changes:
- Add GetResourceMetadataResponse and UpdateResourceMetadataRequest types
- Add GetResourceMetadata and SetResourceMetadata methods to AuthService
- Add GET /kv/{path}/metadata endpoint (requires admin:users:read)
- Add PUT /kv/{path}/metadata endpoint (requires admin:users:update)
- Both endpoints protected by JWT authentication
- Metadata routes registered before general KV routes to prevent pattern conflicts
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>