Feature request: Make spinner verbs configurable

Feature Request

Allow users to configure or disable the "fidget" verbs that appear while Claude is thinking (e.g., "cerebrating", "envisioning", "pondering", etc.).

Use Case

These creative verbs can be distracting. Users should be able to:

1. Disable them entirely - show nothing or a static indicator
2. Override with custom text - e.g., just "Busy" or "Working"

Proposed Solution

Add a spinnerVerbs setting to settings.json:

{
  "spinnerVerbs": {
    "mode": "replace",
    "verbs": ["Busy"]
  }
}

Options:

• mode: "replace" - Use only the custom verbs
• mode: "append" - Add custom verbs to defaults
• mode: "disable" - Show no verb at all

Current Behavior

The verbs are hardcoded and appear even offline, indicating they're bundled in the installation. There's no way to customize or disable them.

Environment

• Claude Code VSCode Extension
• macOS