Eric Traut bba48e5ce8 Add independent controls for TUI visual effects (#46832) ...

## What changed

Replace `tui.whimsy` with `[tui.effects]` preferences for `starfield`, `shimmer`, `welcome`, `effort`, `progress`, and `title`. Each defaults to `true` and remains subordinate to the `tui.animations` master switch.

Wire the preferences into composer effects, welcome artwork, status and loading text, progress indicators, and terminal-title animations. For example, disable shimmering text while keeping progress animations:

```toml
[tui.effects]
shimmer = false
```

Keep retired `tui.whimsy` entries loadable but ignore their value. Update the configuration schema to expose the new preferences.

## Testing

Add and extend coverage for independent shimmer and progress effects, master-switch precedence, welcome and starfield controls, terminal-title blinking, and strict configuration loading with the retired setting.

GitOrigin-RevId: 28b37ba52872133b8954543cabe9ff424147f1c5

2026-09-20 16:16:46 +00:00

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snapshots

Add independent controls for TUI visual effects (#46832)

2026-09-20 16:16:46 +00:00

effects_tests.rs

Add independent controls for TUI visual effects (#46832)

2026-09-20 16:16:46 +00:00

timer_tests.rs

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timer.rs

Show live context compaction status in the TUI (#42319)

2026-09-02 18:03:55 +00:00