Make companion speech bubble duration configurable

Feature Request

The companion (buddy/pet) speech bubble disappears too quickly to read, especially for non-native English speakers. There's currently no way to configure how long the bubble stays visible.

Proposed Solution

Add a configurable setting, e.g. in ~/.claude.json:

{
  "companion": {
    "name": "Snarl",
    "personality": "...",
    "speechBubbleDuration": 8000
  }
}

Where speechBubbleDuration is in milliseconds (default could stay as-is, e.g. 3000-4000ms).

Why

• The companion's comments are often genuinely useful (pointing out code issues, reacting to errors)
• Non-native English speakers need more time to parse the cryptic/witty phrasing
• Power users who value the companion's feedback want to actually read it
• A simple config value would make this accessible without changing default behavior

Environment

• Windows 11, Claude Code CLI
• Companion: ghost named "Snarl"