Replace crypto.randomUUID() with the existing randomUUID() utility
that falls back to crypto.getRandomValues() over plain HTTP.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Centralize terminal process lifecycle in terminal-context as single
source of truth. TerminalView reports exit/failure via callback,
context maintains exitedTerminals set, command-dropdown reacts to it.
Removes redundant polling and per-component exit event subscriptions
that raced with deferred spawn introduced in b2d10fa.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Move PTY spawn from context layer to view layer so event subscription
happens before spawn, preventing loss of initial terminal output.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
