Update TUI to v1.3 with enhanced conversion layer and dual UI architecture

- ai.md: Added comprehensive documentation for TUI v1.3 conversion layer with 64+ supported components, CSS styling, and JavaScript interaction capabilities
- oss/tui/: Created complete TUI module with converter.py implementing HTML/CSS/JS to terminal conversion engine, supporting 40+ component types and advanced styling
- oss/tui/plugin.py: Implemented TUI plugin with dual startup architecture accessing WebUI's /tui interface for HTML conversion and terminal rendering
- store/@{NebulaShell}/webui/tui/: Added TUI package with converter, configuration files, and index.html for terminal interface
- store/@{NebulaShell}/webui/core/server.py: Enhanced WebUI server with TUI interface endpoints (/tui/*) for providing special-marked HTML to conversion layer
- store/@{NebulaShell}/webui/main.py: Updated WebUI plugin to support TUI dual launch with automatic homepage redirection and navigation integration
- .gitignore: Updated ignore patterns for better project cleanliness

The update provides a sophisticated terminal interface that automatically converts WebUI content through a powerful transformation layer, enabling seamless dual-mode operation.

store/@{NebulaShell}/webui/tui/manifest.json

@@ -0,0 +1,28 @@
+{
+  "metadata": {
+    "name": "tui",
+    "version": "1.0.0",
+    "author": "NebulaShell",
+    "description": "终端用户界面 - 与 WebUI 双启动，通过访问 /tui 接口获取 HTML 并转换为终端显示",
+    "type": "tui"
+  },
+  "config": {
+    "enabled": true,
+    "args": {
+      "width": 80,
+      "height": 24,
+      "theme": "dark",
+      "enable_mouse": false,
+      "keyboard_shortcuts": {
+        "1": "/",
+        "2": "/dashboard",
+        "3": "/logs",
+        "4": "/terminal",
+        "q": "quit",
+        "r": "refresh"
+      }
+    }
+  },
+  "dependencies": ["http-api", "webui"],
+  "permissions": ["read:pages", "execute:commands"]
+}