Update project README

README.md

@@ -1,17 +1,60 @@
-# patbond_flutter
+# Patbond Flutter
 
-A new Flutter project.
+Patbond is a Flutter learning project. The current goal is to build the basic app frame for a social content app with a layout similar to Xiaohongshu.
 
-## Getting Started
+## Current Progress
 
-This project is a starting point for a Flutter application.
+- Flutter project initialized.
+- App entry extracted into `lib/app/app.dart`.
+- Main shell page created with a bottom navigation bar.
+- Home page connected as the first tab.
+- Basic project notes added under `doc/`.
 
-A few resources to get you started if this is your first Flutter project:
+## Project Structure
 
-- [Learn Flutter](https://docs.flutter.dev/get-started/learn-flutter)
-- [Write your first Flutter app](https://docs.flutter.dev/get-started/codelab)
-- [Flutter learning resources](https://docs.flutter.dev/reference/learning-resources)
+```text
+lib/
+  main.dart
+  app/
+    app.dart
+  features/
+    home/
+      home_page.dart
+    main/
+      main_shell_page.dart
+doc/
+  android_development.md
+  common_app_structure.md
+  main_app_const.md
+  project_structure.md
+```
 
-For help getting started with Flutter development, view the
-[online documentation](https://docs.flutter.dev/), which offers tutorials,
-samples, guidance on mobile development, and a full API reference.
+## Run The App
+
+Install dependencies:
+
+```bash
+flutter pub get
+```
+
+Run in debug mode:
+
+```bash
+flutter run
+```
+
+Or open the project in VS Code, select a device, and press `F5`.
+
+## Development Plan
+
+Near-term steps:
+
+1. Replace placeholder tabs with real feature pages.
+2. Build a basic home feed page.
+3. Add note card models and mock data.
+4. Add theme configuration.
+5. Add detail pages and navigation when the main frame is stable.
+
+## Git Notes
+
+Generated files such as `.dart_tool/`, `build/`, IDE workspace files, and local platform configuration should not be committed.