Add browser-based terminal emulator and code editor

[Copilot]

Implements a virtual Linux environment in-browser with terminal emulator, code editor, and virtual file system. Accessible via Vercel with no server dependencies.

Implementation

• Terminal emulator with 10 commands: ls, cd, cat, pwd, mkdir, touch, echo, edit, clear, help
• Virtual file system using in-memory JSON structure with deep cloning for immutability
• Split-pane code editor with file tree navigation, click-to-open, and save functionality
• Resizable panels with drag divider between terminal and editor
• Command history with arrow key navigation (↑/↓)

Technical Details

Virtual file system operations use deep cloning to prevent state mutation:

const deepCloneFileSystem = (
  obj: { [key: string]: FileSystemNode }
): { [key: string]: FileSystemNode } => {
  return JSON.parse(JSON.stringify(obj));
};

// Usage in file operations
const newFS = deepCloneFileSystem(fileSystem);
const { node: parentNode } = getNodeAtPath(parentPath);
if (parentNode?.children) {
  parentNode.children[fileName] = { name, type: "file", content };
  setFileSystem(newFS);
}

Command parser handles path resolution for both relative and absolute paths, with support for .. navigation.

UI

GitHub dark theme with Mac-style window controls. Split view: terminal left, editor/file-tree right.

Feature Dashboard:

Terminal Interface:

Code Editor:

Files

• src/components/CodingCommandCenter.tsx - Main component (800+ LOC)
• docs/CODING-COMMAND-CENTER.md - Documentation and usage guide
• src/components/NewFeatureComponent.tsx - Integration into feature dashboard

Original prompt

Build me a coding command center that I can access through vercel anywhere I go, it should feel like I'm logging into a virtual Linux machine

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Project	Deployment	Actions	Updated (UTC)
under-construction-ai	Error		Feb 7, 2026 5:33am