Add sparkline history and reset time toggle

[tylergraydev]

Summary

Two new features for the block segment:

1. Reset Time Toggle

Show either time remaining or absolute reset time:

• timeDisplay: "remaining" (default) - Shows "3h20m"
• timeDisplay: "absolute" - Shows "2:30pm" or "14:30"
• timeFormat: "12h" | "24h" - Configure 12/24 hour format

2. Sparkline History

Visual usage trend using block characters:

• showSparkline: boolean (default false)
• sparklineWidth: number (default 8)
• Stores history in ~/.claude/limitline-history.json
• Shows last 24 hours of usage data
• Characters: ▁▂▃▄▅▆▇█

Example Output

With sparkline enabled:

◫ 29% ▁▂▃▄▅▆▇█ (3h)

With absolute time (12h):

◫ 29% (2:30pm)

With absolute time (24h):

◫ 29% (14:30)

Configuration Example

{
  "block": {
    "enabled": true,
    "timeDisplay": "absolute",
    "timeFormat": "12h",
    "showSparkline": true,
    "sparklineWidth": 8
  }
}

Test plan

• Run npm test - 178 tests pass
• Run npm run build - builds successfully
• Test absolute time display with both 12h and 24h formats
• Test sparkline after multiple runs to build up history

🤖 Generated with Claude Code