fix(tui): debug console.log calls leak into TUI display #31476

Bug

Two console.log debug statements remain in the production TUI package (packages/tui/), leaking raw output into the terminal.

Locations

• packages/tui/src/app.tsx:979 - logs installation update event data
• packages/tui/src/component/prompt/index.tsx:1006 - logs session creation error (toast already shows this; the console reference is misleading)

The toast on line 1009 says "Open console for more details" but provides no value to end users.

Expected

No debug output in production terminal display.