update structure

Author: hate

README.md

@@ -83,13 +83,46 @@ Open [http://localhost:5173](http://localhost:5173) and start typing!
 
 ```
 devkeys/
-├── apps/web/          # React + Vite frontend
+├── apps/web/                    # React + Vite frontend
 │   ├── src/
-│   │   ├── features/  # Editor, stats, session management
-│   │   ├── shared/    # Reusable components & utilities
-│   │   └── wasm/      # Compiled Rust engine (generated)
-├── crates/engine/     # Rust scoring engine
-└── docs/              # Architecture & contribution guides
+│   │   ├── app/                 # App-level styles and configuration
+│   │   ├── config/              # Application constants and configuration
+│   │   ├── content/             # Prompt packs and content management
+│   │   │   ├── packs/           # JSON prompt files (algorithms, etc.)
+│   │   │   ├── localPacks.ts    # Local prompt pack definitions
+│   │   │   └── types.ts         # Content-related type definitions
+│   │   ├── features/            # Feature-based modules
+│   │   │   ├── editor/          # Code editor components and utilities
+│   │   │   ├── explorer/        # File explorer and prompt management
+│   │   │   ├── session/         # Session state, metrics, and persistence
+│   │   │   └── stats/           # Statistics display and history
+│   │   ├── shared/              # Shared components, hooks, and utilities
+│   │   │   ├── components/      # Reusable UI components
+│   │   │   ├── feedback/        # Typing feedback system
+│   │   │   ├── hooks/           # Custom React hooks
+│   │   │   ├── styles/          # Design tokens and styling utilities
+│   │   │   ├── syntax/          # Syntax highlighting and themes
+│   │   │   ├── types/           # Shared TypeScript types
+│   │   │   └── utils/           # Utility functions
+│   │   └── wasm/                # Compiled Rust engine (generated)
+│   ├── dist/                    # Production build output
+│   ├── public/                  # Static assets
+│   └── package.json             # Web app dependencies and scripts
+├── crates/engine/               # Rust scoring engine
+│   ├── src/
+│   │   ├── diff.rs              # Text diffing algorithms
+│   │   ├── engine.rs            # Core typing engine logic
+│   │   ├── feedback.rs          # Real-time feedback system
+│   │   ├── types.rs             # Rust type definitions
+│   │   └── lib.rs               # Library entry point
+│   └── Cargo.toml               # Rust dependencies
+├── docs/                        # Architecture & contribution guides
+├── screenshots/                 # Project screenshots
+├── target/                      # Rust build artifacts
+├── Cargo.toml                   # Root Rust workspace configuration
+├── package.json                 # Root package.json for workspace
+├── pnpm-workspace.yaml          # pnpm workspace configuration
+└── README.md                    # This file
 ```
 
 ## 🧪 Development