Merge branch '13-sequential-task-list-executor' into 'main'

README.md

cmd/task/main.go

design/design.go

design/types.go

docs/queue.md

docs/task-list.md

docs/task.md

gen/http/cli/task/cli.go

gen/http/openapi.json

gen/http/openapi.yaml

gen/http/openapi3.json

gen/http/openapi3.yaml

gen/http/task/client/cli.go

gen/http/task/client/encode_decode.go

gen/http/task/client/types.go

gen/http/task/server/encode_decode.go

gen/http/task/server/types.go

gen/http/task_list/client/cli.go

gen/http/task_list/client/client.go

gen/http/task_list/client/encode_decode.go