Runtime Abstraction (P2)

Shared UI code in apps/** should not directly import or assume:

• window / document
• navigator.clipboard
• requestAnimationFrame

Instead, use the runtime helpers exported from vue-terminal:

• environment flags (isBrowser/isTerminal)
• safe wrappers (timer, raf, clipboard, getWindow/getDocument)

Why

• The same Vue app should run in browser (DOM renderer) and in Node/terminal (stdout renderer + stdin).
• Removing hard browser deps keeps terminal builds deterministic and prevents runtime crashes.

Guidelines

• DOM-only code (e.g. createDomRenderer) may use document directly.
• Shared UI code should call runtime wrappers or feature-detect via isBrowser.