Feature Request: Configurable Directory Depth for Project Generation

[OmarAfet]

The ability to control how deep the structure is generated:

• 0 means infinite depth — the entire project is generated, no matter how deep the directory structure goes.
• 2 means 2 levels deep — only directories and files up to 2 levels deep will be generated.

For example, with depth = 2:

Obsidium/
├── README.md             # Level 1
└── src/                  # Level 1
    ├── config/           # Level 2
    │   └── server.rs     # Level 3 (not generated)
    ├── game/             # Level 2
    │   ├── entity/       # Level 3 (not generated)
    │   │   └── mod.rs    # Level 4 (not generated)
    │   └── world/        # Level 3 (not generated)
    │       └── mod.rs    # Level 4 (not generated)
    └── main.rs           # Level 2

Only files and folders up to level 2 (relative to the project root) will be included.