[Feature Request] Add /usage fields to status line JSON input

Bug Description
Feature request: Add /usage fields to status line JSON input

I'd like to display subscription usage information in my custom status line, but the fields shown by /usage are not available in the status line JSON input.

Please add these fields to the status line JSON:

• Session use percentage (rate limit usage, not context window)
• Session restart/reset time
• Weekly usage statistics

Currently the status line only exposes context window and cost data, but for subscription users (Max/Pro), the /usage metrics would be valuable to display persistently.

Environment Info

• Platform: darwin
• Terminal: tmux
• Version: 2.1.31
• Feedback ID: 09b30cf7-3925-4dd7-a985-b627e79bfc59

Errors

[{"error":"Error: NON-FATAL: Lock acquisition failed for /Users/palonso/.local/share/claude/versions/2.1.31 (expected in multi-process scenarios)\n    at iYR (/$bunfs/root/claude:3621:2098)\n    at cbA (/$bunfs/root/claude:3621:1209)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-02-04T07:46:35.733Z"},{"error":"Error: Request was aborted.\n    at zJR (/$bunfs/root/claude:1551:23586)\n    at znB (/$bunfs/root/claude:5719:7546)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-02-04T07:50:01.489Z"}]