Implement CLI skeleton with cobra and fx dependency injection

- Set up cobra CLI with all commands (backup, restore, prune, verify, fetch)
- Integrate uber/fx for dependency injection and lifecycle management
- Add globals package with build-time variables (Version, Commit)
- Implement config loading from YAML with validation
- Create core data models (FileInfo, ChunkInfo, BlobInfo, Snapshot)
- Add Makefile with build, test, lint, and clean targets
- Include minimal test suite for compilation verification
- Update documentation with --quick flag for verify command
- Fix markdown numbering in implementation TODO

internal/globals/globals_test.go

@@ -0,0 +1,36 @@
+package globals
+
+import (
+	"testing"
+	
+	"go.uber.org/fx"
+	"go.uber.org/fx/fxtest"
+)
+
+// TestGlobalsNew ensures the globals package initializes correctly
+func TestGlobalsNew(t *testing.T) {
+	app := fxtest.New(t,
+		fx.Provide(New),
+		fx.Invoke(func(g *Globals) {
+			if g == nil {
+				t.Fatal("Globals instance is nil")
+			}
+			
+			if g.Appname != "vaultik" {
+				t.Errorf("Expected Appname to be 'vaultik', got '%s'", g.Appname)
+			}
+			
+			// Version and Commit will be "dev" and "unknown" by default
+			if g.Version == "" {
+				t.Error("Version should not be empty")
+			}
+			
+			if g.Commit == "" {
+				t.Error("Commit should not be empty")
+			}
+		}),
+	)
+	
+	app.RequireStart()
+	app.RequireStop()
+}