Fix model selector not responding to arrow keys

[virattt]

Problem

When the user types /model to open the model selection menu, the arrow keys (and j/k vim bindings) do not move the selection cursor. The overlay appears correctly but keyboard navigation is broken. (Fixes #225)

Root Cause

The updateView() function in src/cli.ts unconditionally calls tui.setFocus(editor) on every invocation. This steals focus from the VimSelectList overlay in two scenarios:

1. Slash autocomplete selection path: When the user selects /model from the slash suggestions, editor.onSlashSelect calls handleSlashCommand('model') which opens the overlay and focuses the selector — but then immediately calls updateView(), which moves focus back to the editor.

2. Agent runner updates: The agent runner's onChange callback calls updateView() on every event while processing, which would steal focus from any open overlay mid-query.

Since pi-tui's SelectList only receives key events when it has focus, arrow keys are routed to the CustomEditor instead and never reach the model/provider selector.

Fix

Guard the tui.setFocus(editor) call in updateView() so it only fires when no overlay flow is active:

if (!modelSelection.isInSelectionFlow() && !agentRunner.pendingApproval) {
  tui.setFocus(editor);
}

This ensures focus remains on the overlay's selector component (for model selection, provider selection, and approval prompts) and is only returned to the editor when the overlay is dismissed.

Testing

• bun run typecheck passes
• bun test passes (37/37 tests)

  

[swrzalek]

lgtm

[guiu-rocafort]

fix works for me