fix(process): retain failed starts in service state

Co-Authored-By: Virgil <virgil@lethean.io>

service.go

@@ -217,18 +217,25 @@ func (s *Service) StartWithOptions(ctx context.Context, opts RunOptions) (*Proce
 	if err := cmd.Start(); err != nil {
 		proc.mu.Lock()
 		proc.Status = StatusFailed
+		proc.ExitCode = -1
+		proc.Duration = time.Since(startedAt)
 		proc.mu.Unlock()
 
+		s.mu.Lock()
+		s.processes[id] = proc
+		s.mu.Unlock()
+
+		close(proc.done)
 		cancel()
 		if c := s.coreApp(); c != nil {
 			_ = c.ACTION(ActionProcessExited{
 				ID:       id,
 				ExitCode: -1,
-				Duration: time.Since(startedAt),
+				Duration: proc.Duration,
 				Error:    err,
 			})
 		}
-		return nil, coreerr.E("Service.StartWithOptions", "failed to start process", err)
+		return proc, coreerr.E("Service.StartWithOptions", "failed to start process", err)
 	}
 
 	proc.mu.Lock()

service_test.go

@@ -78,8 +78,18 @@ func TestService_Start(t *testing.T) {
 	t.Run("non-existent command", func(t *testing.T) {
 		svc, _ := newTestService(t)
 
-		_, err := svc.Start(context.Background(), "nonexistent_command_xyz")
+		proc, err := svc.Start(context.Background(), "nonexistent_command_xyz")
 		assert.Error(t, err)
+		require.NotNil(t, proc)
+		assert.Equal(t, StatusFailed, proc.Status)
+		assert.Equal(t, -1, proc.ExitCode)
+		assert.NotNil(t, proc.Done())
+		<-proc.Done()
+
+		got, getErr := svc.Get(proc.ID)
+		require.NoError(t, getErr)
+		assert.Equal(t, proc.ID, got.ID)
+		assert.Equal(t, StatusFailed, got.Status)
 	})
 
 	t.Run("empty command is rejected", func(t *testing.T) {