## ADDED Requirements

### Requirement: React Error Boundary component
The application SHALL include a React Error Boundary component that catches JavaScript errors in its child component tree and renders a fallback UI instead of crashing to a white screen. The fallback SHALL display: an error message, a "Reload" button that calls `window.location.reload()`, and a "Try Again" button that resets the error boundary state.

#### Scenario: Child component throws during render
- **WHEN** CandleChart or any child component throws an error during rendering
- **THEN** the Error Boundary catches the error and renders the fallback UI instead of a white screen

#### Scenario: Fallback UI interaction
- **WHEN** the user sees the error fallback and clicks "Try Again"
- **THEN** the Error Boundary resets its state and attempts to re-render the child component tree

#### Scenario: Error logging
- **WHEN** the Error Boundary catches an error
- **THEN** the error and component stack are logged via `console.error`

### Requirement: Error Boundary placement in layout
The root layout (`src/app/layout.tsx`) SHALL wrap `{children}` with the Error Boundary component so that any render error in any page is caught.

#### Scenario: Layout wraps children
- **WHEN** the application renders any page
- **THEN** the page content is wrapped inside an Error Boundary