feat: implement edit and delete host commands

- Add edit command with flag-based and interactive update modes
- Add delete command with confirmation prompt and --force flag
- Include delete alias 'rm' for convenience
- Add comprehensive tests for both commands
- Update project state documentation

cmd/hostkeeper/edit_test.go

@@ -0,0 +1,34 @@
+package main
+
+import (
+	"testing"
+)
+
+func TestEditCommandExists(t *testing.T) {
+	if editCmd == nil {
+		t.Fatal("editCmd should not be nil")
+	}
+
+	if editCmd.Use != "edit <host-name-or-id>" {
+		t.Errorf("expected Use 'edit <host-name-or-id>', got '%s'", editCmd.Use)
+	}
+
+	if editCmd.Short == "" {
+		t.Error("Short description should not be empty")
+	}
+}
+
+func TestEditCommandFlags(t *testing.T) {
+	expectedFlags := []string{"host", "port", "user", "password", "key", "auth-type", "group", "tags", "notes", "name"}
+	for _, flagName := range expectedFlags {
+		if editCmd.Flags().Lookup(flagName) == nil {
+			t.Errorf("flag '%s' should be defined", flagName)
+		}
+	}
+}
+
+func TestEditArgs(t *testing.T) {
+	if editCmd.Args == nil {
+		t.Error("Args validator should not be nil")
+	}
+}