Initial commit: Shadow Bamboo project setup

- Rename from 竹影 to Shadow Bamboo
- Restructure directories (remove numbers)
- Move Godot core files to root for built-in Git support
- Add Markdown documentation (GDD.md, Story.md)
- Setup clean resource folder structure

README.md

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+# Shadow Bamboo (竹影)
+
+A Godot 4.6 action RPG set in a mystical bamboo forest world.
+
+## Project Structure
+
+```
+Shadow-Bamboo/
+├── project.godot          # Godot project file
+├── icon.svg               # Project icon
+├── Resources/             # Game assets
+│   ├── Sprites/           # Character sprites
+│   ├── Textures/          # Environment textures
+│   ├── Audio/             # Sound assets
+│   │   ├── Music/         # BGM tracks
+│   │   └── SFX/           # Sound effects
+│   ├── Fonts/             # Typography
+│   ├── Animations/        # Animation files
+│   ├── Shaders/           # Custom shaders
+│   ├── Tilesets/          # Map tilesets
+│   └── UI/                # Interface assets
+├── Scenes/                # Godot scene files (.tscn)
+├── Scripts/               # GDScript files (.gd)
+├── Documents/             # Design documentation
+│   ├── GDD.md            # Game Design Document
+│   └── Story.md          # Story script
+└── Exports/               # Build exports
+```
+
+## Engine Info
+
+- **Engine**: Godot 4.6
+- **Renderer**: Forward Plus
+- **Physics**: Jolt Physics
+- **Platform**: Windows (Primary)
+
+## Quick Start
+
+1. Open `project.godot` in Godot 4.6+
+2. The project is ready to edit
+3. Use Godot's built-in Git tools for version control
+
+## Links
+
+- Repository: http://git.skwcf.top/root/Shadow-Bamboo
+- Game Website: http://skwcf.top/
+
+---
+*Shadow Bamboo Team*