refactor: reorganize integration tests

Move integration-appropriate tests from tests/unit/ to tests/integration/:
- tests/unit/simple_test.go -> tests/integration/simple_test.go
- tests/unit/deployments/traefik_compose_test.go -> tests/integration/traefik_compose_test.go
- tests/unit/worker_trust_test.go -> tests/integration/worker_trust_test.go

Update test package declarations and imports to reflect new locations.

These tests were misplaced in the unit tests directory but actually test
integration between components or external systems (Traefik, worker trust).

tests/integration/simple_test.go

@@ -1,4 +1,4 @@
-package unit
+package tests
 
 import (
 	"context"

tests/integration/traefik_compose_test.go

@@ -1,4 +1,4 @@
-package deployments
+package tests
 
 import (
 	"os"
@@ -18,7 +18,7 @@ func repoRoot(t *testing.T) string {
 		t.Fatalf("failed to resolve caller path")
 	}
 
-	return filepath.Clean(filepath.Join(filepath.Dir(filename), "..", "..", ".."))
+	return filepath.Clean(filepath.Join(filepath.Dir(filename), "..", ".."))
 }
 
 func asMap(t *testing.T, v any) map[string]any {

tests/integration/worker_trust_test.go

@@ -1,4 +1,4 @@
-package unit
+package tests
 
 import (
 	"os"