feat: delete dingo app demo code (MigoXLab#370)

* feat: delete dingo app dir

* feat: update

* fix ut

Author: e06084

.gitignore

@@ -24,7 +24,6 @@ debug/
 bad_words/
 bak/
 
-app/tests/*
 temp/
 tmp/
 tmp

AGENTS.md

@@ -17,8 +17,6 @@ Dingo is a comprehensive AI data quality evaluation tool for ML practitioners, d
 | LLM Integration | OpenAI SDK (supports any compatible API) |
 | MCP Server | FastMCP + SSE transport |
 | Distributed | PySpark (optional) |
-| Web UI | React + TypeScript + Vite (in `app/`) |
-| GUI Demo | Gradio (in `app_gradio/`) |
 
 ## Directory Structure
 
@@ -30,7 +28,6 @@ dingo/
 ├── requirements/
 │   ├── runtime.txt          ← core dependencies (minimal)
 │   ├── datasource.txt       ← optional datasource deps (S3, SQL, Parquet, etc.)
-│   ├── web.txt              ← web UI deps
 │   ├── optional.txt         ← heavy optional deps (torch, pyspark, etc.)
 │   └── agent.txt            ← agent evaluation deps (langchain, tavily)
 │
@@ -66,11 +63,8 @@ dingo/
 │   │   ├── local.py         ← LocalExecutor (single machine, cross-layer conflict detection)
 │   │   └── spark.py         ← SparkExecutor (distributed)
 │   └── run/
-│       ├── cli.py           ← CLI entry point (subcommands: eval, info)
-│       └── vsl.py           ← GUI visualization entry point
+│       └── cli.py           ← CLI entry point (subcommands: eval, info)
 │
-├── app/                     ← React frontend (Next.js-style)
-├── app_gradio/              ← Gradio demo UI
 ├── examples/                ← Usage examples (SDK, CLI, various scenarios)
 ├── test/                    ← Test suite
 │   ├── data/                ← Test data files

README.md

@@ -74,7 +74,7 @@ Need a **production-grade data quality platform**? Try [Dingo SaaS](https://ding
 
 ### 📝 How to Get Free SaaS Code
 
-👉 **[Apply for Dingo SaaS Repository Access](https://aicarrier.feishu.cn/share/base/form/shrcn9RqYttByQ5H1np6Yrnmhuf)** 
+👉 **[Apply for Dingo SaaS Repository Access](https://aicarrier.feishu.cn/share/base/form/shrcnr19E0upfiA92Wm5i2eic7g)** 
 
 Review time: 1-5 business days | Suitable for enterprise data governance, team collaboration
 
@@ -448,9 +448,9 @@ class MyCustomRule(BaseRule):
 ✅ Per-rule violation details  
 ✅ Type and name distribution
 
-**GUI Visualization**  
-✅ Built-in web interface  
-✅ Interactive data exploration  
+**GUI Visualization (via [Dingo SaaS](https://github.com/MigoXLab/dingo-saas))**  
+✅ Web UI with interactive data exploration  
+✅ Visual reports with trend analysis  
 ✅ Anomaly tracking
 
 **Metric Aggregation**  

README_ja.md

@@ -73,7 +73,7 @@
 
 ### 📝 無料 SaaS コードの入手方法
 
-👉 **[Dingo SaaS リポジトリアクセスを申請する](https://aicarrier.feishu.cn/share/base/form/shrcn9RqYttByQ5H1np6Yrnmhuf)** 
+👉 **[Dingo SaaS リポジトリアクセスを申請する](https://aicarrier.feishu.cn/share/base/form/shrcnr19E0upfiA92Wm5i2eic7g)** 
 
 審査時間：1-5営業日 | エンタープライズデータガバナンス、チームコラボレーションに最適
 
@@ -446,9 +446,9 @@ class MyCustomRule(BaseRule):
 ✅ ルール違反ごとの詳細情報  
 ✅ タイプと名前の分布
 
-**GUI 可視化**  
-✅ 組み込み Web インターフェース  
-✅ インタラクティブなデータ探索  
+**GUI 可視化（[Dingo SaaS](https://github.com/MigoXLab/dingo-saas) 経由）**  
+✅ Web UI によるインタラクティブなデータ探索  
+✅ トレンド分析付きビジュアルレポート  
 ✅ 異常追跡
 
 **メトリクス集計**  

README_zh-CN.md

@@ -447,9 +447,9 @@ class MyCustomRule(BaseRule):
 ✅ 每条规则违规的详细信息  
 ✅ 类型和名称分布
 
-**GUI 可视化**  
-✅ 内置 Web 界面  
-✅ 交互式数据探索  
+**GUI 可视化（通过 [Dingo SaaS](https://github.com/MigoXLab/dingo-saas)）**  
+✅ Web UI 交互式数据探索  
+✅ 可视化报告与趋势分析  
 ✅ 异常追踪
 
 **指标聚合**