refactor(api): restructured API for type safety, maintainability and docs generation

- These changes makes the API incombatible with previous versions
- Added new types for error handling, success responses, and health checks.
- Updated health check logic to utilize the new types for better clarity and structure.
- Refactored existing handlers to improve response consistency and error handling.
- Updated Makefile to include a new target for generating API types from Swagger.
- Updated "new agent" API to respond an encrypted cert pair

internal/docker/list_containers.go

@@ -21,7 +21,7 @@ var listOptions = container.ListOptions{
 	All: true,
 }
 
-func ListContainers(clientHost string) ([]container.SummaryTrimmed, error) {
+func ListContainers(clientHost string) ([]container.Summary, error) {
 	dockerClient, err := NewClient(clientHost)
 	if err != nil {
 		return nil, err