Build typing game with progress tracking

Manage typing engine composables, state machines, and progress tracking

When implementing keyboard input handling, WPM calculation, and learning progress

• · Typing state
• · Keyboard events

• · WPM calculation
• · Progress update

Vue composables initialized; event bus or state machine available; localStorage accessible

• · Keyboard event handler missing or not registered
• · WPM calculation uses incorrect time window or word definition
• · Progress sync fails between client and server

• · Includes test/validation protocols
• · Explicit error handling
• · Provides usage examples