feat: service logs command to stream service logs (#196)

* chore: fix landing logo shadow

* feat: implement service logs command with colored output and strict ordering

* revert Makefile

* fix after rebase

* move logs command under services with root shortcut

* simplify server options for streaming logs and CLI flags

* refactor ContainerLogs grpc server

* update --tail flag

* minor docker.proto

* refactor client ServiceLogs and ContainerLogs

* move ProxyMachinesContext from api to client pkg

* minor refactor proto Stream

* add api/logs

* implement LogMerger

* fix LogMerger to correctly use semaphore

* increate inflish entries to 100 per stream

* send heartbeats

* refactor ContainerLogs to synchronise Send of entries and heartbeats to the steram

* minor logmerege

* remove ContainerName form ServiceLogEntryMetadata

* refactor ContainerLogs into docker.Service

* detect stalled container logs streams

* update logmerger tests

* fix comment in test

* refactor LogMerger with options

* uc logs: format one or multiple services

* make LogMerger emit heartbeats, emit entries <= watermark, rewrite tests

* update uc logs with new LogMerger

* go mod tidy

* fix after merge

---------

Co-authored-by: Evgenii Orlov <evgenii.orlov@semrush.com>

pkg/api/service.go

@@ -8,6 +8,7 @@ import (
 	"slices"
 	"strings"
 
+	mapset "github.com/deckarep/golang-set/v2"
 	"github.com/distribution/reference"
 	"github.com/google/go-cmp/cmp"
 	"github.com/google/go-cmp/cmp/cmpopts"
@@ -366,6 +367,16 @@ type MachineServiceContainer struct {
 	Container ServiceContainer
 }
 
+// MachineIDs returns a list of unique machine IDs where the service containers are running.
+func (s *Service) MachineIDs() []string {
+	ids := mapset.NewSet[string]()
+	for _, mc := range s.Containers {
+		ids.Add(mc.MachineID)
+	}
+
+	return ids.ToSlice()
+}
+
 // Images returns a sorted list of unique images used by the service containers.
 func (s *Service) Images() []string {
 	images := make(map[string]struct{})