feat(编辑能力): 完善保存另存与后台编辑

internal/webui/webui_wasm.go

@@ -56,6 +56,8 @@ func RunWASM() {
 		"ofdgoImportPages":      true,
 		"ofdgoImportDocuments":  true,
 		"ofdgoSaveDocument":     true,
+		"ofdgoPrepareSave":      true,
+		"ofdgoSaveSnapshot":     true,
 		"ofdgoSetEncryption":    true,
 		"ofdgoSaveSigned":       true,
 	}