fix(format): resolve gofmt violations in docker_client.go and collector.go

Fix code formatting issues that were causing CI lint failures:
- Format internal/executor/docker_client.go
- Format internal/logging/collector.go

This resolves the lint step failures in PR #61 CI checks.

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

Author: starbops

internal/executor/docker_client.go

@@ -366,7 +366,6 @@ func (dc *DockerClient) GetActiveLogStreams() int {
 	return len(dc.activeStreams)
 }
 
-
 // RemoveContainer removes the specified container
 func (dc *DockerClient) RemoveContainer(ctx context.Context, containerID string, force bool) error {
 	if err := dc.validateContainerID(containerID); err != nil {

internal/logging/collector.go

@@ -434,4 +434,4 @@ func (c *DockerLogCollector) GetStats() *LogCollectorStats {
 	}
 
 	return stats
-}
+}