Move StartTime initialization to application startup hook

- Remove StartTime initialization from globals.New()
- Add setupGlobals function in app.go to set StartTime during fx OnStart
- Simplify globals package to be just a key/value store
- Remove fx dependencies from globals test

internal/s3/s3_test.go

@@ -3,6 +3,7 @@ package s3_test
 import (
 	"bytes"
 	"context"
+	"fmt"
 	"io"
 	"net/http"
 	"os"
@@ -14,6 +15,7 @@ import (
 	"github.com/aws/aws-sdk-go-v2/config"
 	"github.com/aws/aws-sdk-go-v2/credentials"
 	"github.com/aws/aws-sdk-go-v2/service/s3"
+	"github.com/aws/smithy-go/logging"
 	"github.com/johannesboyne/gofakes3"
 	"github.com/johannesboyne/gofakes3/backend/s3mem"
 )
@@ -32,6 +34,7 @@ type TestServer struct {
 	backend  gofakes3.Backend
 	s3Client *s3.Client
 	tempDir  string
+	logBuf   *bytes.Buffer
 }
 
 // NewTestServer creates and starts a new test server
@@ -62,7 +65,10 @@ func NewTestServer(t *testing.T) *TestServer {
 	// Wait for server to be ready
 	time.Sleep(100 * time.Millisecond)
 
-	// Create S3 client
+	// Create a buffer to capture logs
+	logBuf := &bytes.Buffer{}
+
+	// Create S3 client with custom logger
 	cfg, err := config.LoadDefaultConfig(context.Background(),
 		config.WithRegion(testRegion),
 		config.WithCredentialsProvider(credentials.NewStaticCredentialsProvider(
@@ -71,6 +77,13 @@ func NewTestServer(t *testing.T) *TestServer {
 			"",
 		)),
 		config.WithClientLogMode(aws.LogRetries|aws.LogRequestWithBody|aws.LogResponseWithBody),
+		config.WithLogger(logging.LoggerFunc(func(classification logging.Classification, format string, v ...interface{}) {
+			// Capture logs to buffer instead of stdout
+			fmt.Fprintf(logBuf, "SDK %s %s %s\n",
+				time.Now().Format("2006/01/02 15:04:05"),
+				string(classification),
+				fmt.Sprintf(format, v...))
+		})),
 	)
 	if err != nil {
 		t.Fatalf("failed to create AWS config: %v", err)
@@ -86,8 +99,16 @@ func NewTestServer(t *testing.T) *TestServer {
 		backend:  backend,
 		s3Client: s3Client,
 		tempDir:  tempDir,
+		logBuf:   logBuf,
 	}
 
+	// Register cleanup to show logs on test failure
+	t.Cleanup(func() {
+		if t.Failed() && logBuf.Len() > 0 {
+			t.Logf("S3 SDK Debug Output:\n%s", logBuf.String())
+		}
+	})
+
 	// Create test bucket
 	_, err = s3Client.CreateBucket(context.Background(), &s3.CreateBucketInput{
 		Bucket: aws.String(testBucket),